🕷️ Crawler Inspector

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Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 129 (from laksa082)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa129.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.nimh.nih.gov/health/statistics/panic-disorder\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.nimh.nih.gov/health/statistics/panic-disorder\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.nimh.nih.gov\/health\/statistics\/panic-disorder","crawl_time":1775051617,"first_indexed_time":1619936753,"http_code":200,"src_unparsed":"gov,nih!nimh,www,\/health\/statistics\/panic-disorder s443","src_root_hash":"7295144728021232729","history_drop_reason":null,"meta_title":"Panic Disorder - National Institute of Mental Health (NIMH)","meta_descriptions":["Panic Disorder is an anxiety disorder characterized by unexpected and repeated episodes of intense fear accompanied by physical symptoms that may include chest pain, heart palpitations, shortness of breath, dizziness, or abdominal distress. These episodes occur “out of the blue,” not in conjunction with a known fear or stressor."],"attrs_boilerpipe_text":"Definition\nPanic Disorder\nis an anxiety disorder characterized by unexpected and repeated episodes of intense fear accompanied by physical symptoms that may include chest pain, heart palpitations, shortness of breath, dizziness, or abdominal distress. These episodes occur “out of the blue,” not in conjunction with a known fear or stressor.\nAdditional information about panic disorder can be found on the\nNIMH Health Topics page on Anxiety Disorders\n.\nPrevalence of Panic Disorder Among Adults\nBased on diagnostic interview data from National Comorbidity Survey Replication (NCS-R), Figure 1 shows past year prevalence of panic disorder among U.S. adults aged 18 or older.\n1\nAn estimated 2.7% of U.S. adults had panic disorder in the past year.\nPast year prevalence of panic disorder among adults was higher for females (3.8%) than for males (1.6%).\nAn estimated 4.7% of U.S. adults experience panic disorder at some time in their lives.\n2\nFigure 1\nPast Year Prevalence of Panic Disorder Among U.S Adults (2001-2003)\nBar chart with 7 bars.\nData from National Comorbidity Survey Replication (NCS-R)\nThe chart has 1 X axis displaying categories.\nThe chart has 1 Y axis displaying Percent. Range: 0 to 4.\nEnd of interactive chart.\nPast Year Prevalence of Panic Disorder Among U.S Adults (2001-2003)\nDemographic\nPercent\nOverall\n2.7\nSex\nFemale\n3.8\nMale\n1.6\nAge\n18-29\n2.8\n30-44\n3.7\n45-59\n3.1\n60+\n0.8\nPanic Disorder with Impairment Among Adults\nOf adults with panic disorder in the past year, degree of impairment ranged from mild to serious, as shown in Figure 2. Impairment was determined by scores on the Sheehan Disability Scale.\n3\nImpairment was distributed evenly among adults with panic disorder. An estimated 44.8% had serious impairment, 29.5% had moderate impairment, and 25.7% had mild impairment.\nFigure 2\nPast Year Severity of Panic Disorder Among U.S. Adults (2001-2003)\nPie chart with 3 slices.\nData from National Comorbidity Survey Replication (NCS-R)\nEnd of interactive chart.\nPast Year Severity of Panic Disorder Among U.S. Adults (2001-2003)\nSeverity\nPercent\nMild\n25.7\nModerate\n29.5\nSerious\n44.8\nTotal\n100\nPrevalence of Panic Disorder Among Adolescents\nBased on diagnostic interview data from National Comorbidity Survey Adolescent Supplement (NCS-A), Figure 3 shows lifetime prevalence of panic disorder among U.S. adolescents aged 13-18.\n4\nAn estimated 2.3% of adolescents had panic disorder, and 2.3% had severe impairment. Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria were used to determine impairment.\nThe prevalence of panic disorder among adolescents was higher for females (2.6%) than for males (2.0%).\nFigure 3\nLifetime Prevalence of Panic Disorder Among Adolescents (2001-2004)\nBar chart with 7 bars.\nData from National Comorbidity Survey Adolescent Supplement (NCS-A)\nThe chart has 1 X axis displaying categories.\nThe chart has 1 Y axis displaying Percent. Range: 0 to 4.\nEnd of interactive chart.\nLifetime Prevalence of Panic Disorder Among Adolescents (2001-2004)\nDemographic\nPercent\nOverall\n2.3\nWith Severe Impairment\n2.3\nSex\nFemale\n2.6\nMale\n2.0\nAge\n13-14\n1.8\n15-16\n2.3\n17-18\n3.3\nData Sources\nReferences\nHarvard Medical School, 2007. National Comorbidity Survey (NCS). (2017, August 21). Retrieved from\nhttps:\/\/www.hcp.med.harvard.edu\/ncs\/index.php \n. Data Table 2:\n12-month prevalence DSM-IV\/WMH-CIDI disorders by sex and cohort. \nHarvard Medical School, 2007. National Comorbidity Survey (NCS). (2017, August 21). Retrieved from\nhttps:\/\/www.hcp.med.harvard.edu\/ncs\/index.php \n. Data Table 1:\nLifetime prevalence DSM-IV\/WMH-CIDI disorders by sex and cohort \n.\nKessler RC, Chiu WT, Demler O, Merikangas KR, Walters EE. Prevalence, severity, and comorbidity of 12-month DSM-IV disorders in the National Comorbidity Survey Replication.\nArch Gen Psychiatry.\n2005 Jun;62(6):617-27.\nPMID: 15939839 \nMerikangas KR, He JP, Burstein M, Swanson SA, Avenevoli S, Cui L, Benjet C, Georgiades K, Swendsen J. Lifetime prevalence of mental disorders in U.S. adolescents: results from the National Comorbidity Survey Replication--Adolescent Supplement (NCS-A).\nJ Am Acad Child Adolesc Psychiatry.\n2010 Oct;49(10):980-9.\nPMID: 20855043 \nStatistical Methods and Measurement Caveats\nNational Comorbidity Survey Replication (NCS-R)\nDiagnostic Assessment and Population:\nThe NCS-R is a nationally representative, face-to-face, household survey conducted between February 2001 and April 2003 with a response rate of 70.9%. Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) mental disorders were assessed using a modified version of the fully structured World Health Organization Composite International Diagnostic Interview (WMH-CIDI), a fully structured lay-administered diagnostic interview that generates both International Classification of Diseases, 10\nth\nRevision, and DSM-IV diagnoses. The DSM-IV criteria were used here. The Sheehan Disability Scale (SDS) assessed disability in work role performance, household maintenance, social life, and intimate relationships on a 0–10 scale. Participants for the main interview totaled 9,282 English-speaking, non-institutionalized, civilian respondents. Any anxiety disorder was assessed in a subsample of 5,692 adults. The NCS-R was led by Harvard University.\nUnlike the DSM-IV criteria used in the NCS-R and NCS-A, the current DSM-5 no longer places post-traumatic stress disorder or obsessive compulsive disorder in the anxiety disorder category. They are listed in new DSM5 categories.\nSurvey Non-response:\nIn 2001-2002, non-response was 29.1% of primary respondents and 19.6% of secondary respondents.\nReasons for non-response to interviewing include: refusal to participate (7.3% of primary, 6.3% of secondary); respondent was reluctant- too busy but did not refuse (17.7% of primary, 11.6% of secondary); circumstantial, such as intellectual developmental disability or overseas work assignment (2.0% of primary, 1.7% of secondary); and household units that were never contacted (2.0).\nFor more information, see\nPMID: 15297905 \n.\nNational Comorbidity Survey Adolescent Supplement (NCS-A)\nDiagnostic Assessment and Population:\nThe NCS-A was carried out under a cooperative agreement sponsored by NIMH to meet a request from Congress to provide national data on the prevalence and correlates of mental disorders among U.S. youth. The NCS-A was a nationally representative, face-to-face survey of 10,123 adolescents aged 13 to 18 years in the continental United States. The survey was based on a dual-frame design that included 904 adolescent residents of the households that participated in the adult U.S. National Comorbidity Survey Replication and 9,244 adolescent students selected from a nationally representative sample of 320 schools. The survey was fielded between February 2001 and January 2004. DSM-IV mental disorders were assessed using a modified version of the fully structured World Health Organization Composite International Diagnostic Interview.\nSurvey Non-response:\nThe overall adolescent non-response rate was 24.4%. This is made up of non-response rates of 14.1% in the household sample, 18.2% in the un-blinded school sample, and 77.7% in the blinded school sample. Non-response was largely due to refusal (21.3%), which in the household and un-blinded school samples came largely from parents rather than adolescents (72.3% and 81.0%, respectively). The refusals in the blinded school sample, in comparison, came almost entirely (98.1%) from parents failing to return the signed consent postcard.\nFor more information, see\nPMID: 19507169 \n.","attrs_markdown":"[Skip to main content](https:\/\/www.nimh.nih.gov\/health\/statistics\/panic-disorder#main-content)\n\n![](https:\/\/www.nimh.nih.gov\/themes\/nimhtheme\/uswds\/images\/us_flag_small.png)\n\nAn official website of the United States government\n\nHere’s how you know\n\nHere’s how you know\n\n![](https:\/\/www.nimh.nih.gov\/themes\/nimhtheme\/uswds\/images\/icon-dot-gov.svg)\n\n**Official websites use .gov**  \nA **.gov** website belongs to an official government organization in the United States.\n\n![](https:\/\/www.nimh.nih.gov\/themes\/nimhtheme\/uswds\/images\/icon-https.svg)\n\n**Secure .gov websites use HTTPS**  \nA **lock** ( Locked padlock icon) or **https:\/\/** means you’ve safely connected to the .gov website. 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[Staff Directories](https:\/\/www.nimh.nih.gov\/about\/staff-directories)\n  - [History](https:\/\/www.nimh.nih.gov\/about\/nimh-history)\n  - [Getting to NIMH](https:\/\/www.nimh.nih.gov\/about\/connect-with-nimh)\n\n- [Health Topics](https:\/\/www.nimh.nih.gov\/health\/topics)\n- [Statistics](https:\/\/www.nimh.nih.gov\/health\/statistics)\n- [Brochures and Fact Sheets](https:\/\/www.nimh.nih.gov\/health\/publications)\n- [Help for Mental Illnesses](https:\/\/www.nimh.nih.gov\/health\/find-help)\n- [Clinical Trials](https:\/\/www.nimh.nih.gov\/health\/trials)\n\n[Home](https:\/\/www.nimh.nih.gov\/) \\> [Mental Health Information](https:\/\/www.nimh.nih.gov\/health) \\> [Statistics](https:\/\/www.nimh.nih.gov\/health\/statistics) \\> Panic Disorder\n\n###### Share Page\nMenu\n\n- [Definition](https:\/\/www.nimh.nih.gov\/health\/statistics\/panic-disorder#part_2656)\n- [Prevalence of Panic Disorder Among Adults](https:\/\/www.nimh.nih.gov\/health\/statistics\/panic-disorder#part_2655)\n- [Panic Disorder with Impairment Among Adults](https:\/\/www.nimh.nih.gov\/health\/statistics\/panic-disorder#part_2654)\n- [Prevalence of Panic Disorder Among Adolescents](https:\/\/www.nimh.nih.gov\/health\/statistics\/panic-disorder#part_2658)\n- [Data Sources](https:\/\/www.nimh.nih.gov\/health\/statistics\/panic-disorder#part_2657)\n\n# Panic Disorder\n## Definition\n**Panic Disorder** is an anxiety disorder characterized by unexpected and repeated episodes of intense fear accompanied by physical symptoms that may include chest pain, heart palpitations, shortness of breath, dizziness, or abdominal distress. These episodes occur “out of the blue,” not in conjunction with a known fear or stressor.\n\nAdditional information about panic disorder can be found on the [NIMH Health Topics page on Anxiety Disorders](https:\/\/www.nimh.nih.gov\/health\/topics\/anxiety-disorders).\n\n## Prevalence of Panic Disorder Among Adults\n- Based on diagnostic interview data from National Comorbidity Survey Replication (NCS-R), Figure 1 shows past year prevalence of panic disorder among U.S. adults aged 18 or older.1\n  - An estimated 2.7% of U.S. adults had panic disorder in the past year.\n  - Past year prevalence of panic disorder among adults was higher for females (3.8%) than for males (1.6%).\n- An estimated 4.7% of U.S. adults experience panic disorder at some time in their lives.2\n#### Figure 1\n\nPast Year Prevalence of Panic Disorder Among U.S Adults (2001-2003)\n\nBar chart with 7 bars.\n\nData from National Comorbidity Survey Replication (NCS-R)\n\nView as data table, Past Year Prevalence of Panic Disorder Among U.S Adults (2001-2003)\n\nThe chart has 1 X axis displaying categories.\n\nThe chart has 1 Y axis displaying Percent. Range: 0 to 4.\n\nCreated with Highcharts 9.0.1\n\nPercent\n\nPast Year Prevalence of Panic Disorder Among U.S Adults (2001-2003)\n\nData from National Comorbidity Survey Replication (NCS-R)\n\n2\\.7\n\n\n\n2\\.7\n\n3\\.8\n\n\n\n3\\.8\n\n1\\.6\n\n\n\n1\\.6\n\n2\\.8\n\n\n\n2\\.8\n\n3\\.7\n\n\n\n3\\.7\n\n3\\.1\n\n\n\n3\\.1\n\n0\\.8\n\n\n\n0\\.8\n\nOverall\n\nFemale\n\nSex\n\nMale\n\n18-29\n\nAge\n\n30-44\n\n45-59\n\n60+\n\n0\n\n1\n\n2\n\n3\n\n4\n\nEnd of interactive chart.\n\n| Demographic | Percent |   |\n|---|---|---|\n| Overall | 2\\.7 |   |\n| Sex | Female | 3\\.8 |\n| Male | 1\\.6 |   |\n| Age | 18-29 | 2\\.8 |\n| 30-44 | 3\\.7 |   |\n| 45-59 | 3\\.1 |   |\n| 60+ | 0\\.8 |   |\n\n## Panic Disorder with Impairment Among Adults\n- Of adults with panic disorder in the past year, degree of impairment ranged from mild to serious, as shown in Figure 2. Impairment was determined by scores on the Sheehan Disability Scale.3\n- Impairment was distributed evenly among adults with panic disorder. An estimated 44.8% had serious impairment, 29.5% had moderate impairment, and 25.7% had mild impairment.\n#### Figure 2\n\nPast Year Severity of Panic Disorder Among U.S. Adults (2001-2003)\n\nPie chart with 3 slices.\n\nData from National Comorbidity Survey Replication (NCS-R)\n\nView as data table, Past Year Severity of Panic Disorder Among U.S. Adults (2001-2003)\n\nCreated with Highcharts 9.0.1\n\nPast Year Severity of Panic Disorder Among U.S. Adults (2001-2003)\n\nData from National Comorbidity Survey Replication (NCS-R)\n\nMild\n\n\n\n25\\.7%\n\n\n\nMild\n\n\n\n25\\.7%\n\nModerate\n\n\n\n29\\.5%\n\n\n\nModerate\n\n\n\n29\\.5%\n\nSerious\n\n\n\n44\\.8%\n\n\n\nSerious\n\n\n\n44\\.8%\n\nEnd of interactive chart.\n\n| Severity | Percent |\n|---|---|\n| Mild | 25\\.7 |\n| Moderate | 29\\.5 |\n| Serious | 44\\.8 |\n| Total | 100 |\n\n## Prevalence of Panic Disorder Among Adolescents\n- Based on diagnostic interview data from National Comorbidity Survey Adolescent Supplement (NCS-A), Figure 3 shows lifetime prevalence of panic disorder among U.S. adolescents aged 13-18.4\n  - An estimated 2.3% of adolescents had panic disorder, and 2.3% had severe impairment. Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria were used to determine impairment.\n  - The prevalence of panic disorder among adolescents was higher for females (2.6%) than for males (2.0%).\n#### Figure 3\n\nLifetime Prevalence of Panic Disorder Among Adolescents (2001-2004)\n\nBar chart with 7 bars.\n\nData from National Comorbidity Survey Adolescent Supplement (NCS-A)\n\nView as data table, Lifetime Prevalence of Panic Disorder Among Adolescents (2001-2004)\n\nThe chart has 1 X axis displaying categories.\n\nThe chart has 1 Y axis displaying Percent. Range: 0 to 4.\n\nCreated with Highcharts 9.0.1\n\nPercent\n\nLifetime Prevalence of Panic Disorder Among Adolescents (2001-\n\n\n\n2004\\)\n\nData from National Comorbidity Survey Adolescent Supplement (NCS-A)\n\n2\\.3\n\n\n\n2\\.3\n\n2\\.3\n\n\n\n2\\.3\n\n2\\.6\n\n\n\n2\\.6\n\n2\\.0\n\n\n\n2\\.0\n\n1\\.8\n\n\n\n1\\.8\n\n2\\.3\n\n\n\n2\\.3\n\n3\\.3\n\n\n\n3\\.3\n\nOverall\n\nWith Severe\n\n\n\nImpairment\n\nFemale\n\nSex\n\nMale\n\n13-14\n\nAge\n\n15-16\n\n17-18\n\n0\n\n1\n\n2\n\n3\n\n4\n\nEnd of interactive chart.\n\n| Demographic | Percent |   |\n|---|---|---|\n| Overall | 2\\.3 |   |\n| With Severe Impairment | 2\\.3 |   |\n| Sex | Female | 2\\.6 |\n| Male | 2\\.0 |   |\n| Age | 13-14 | 1\\.8 |\n| 15-16 | 2\\.3 |   |\n| 17-18 | 3\\.3 |   |\n\n## Data Sources\n### References\n1. Harvard Medical School, 2007. National Comorbidity Survey (NCS). (2017, August 21). Retrieved from <https:\/\/www.hcp.med.harvard.edu\/ncs\/index.php>. Data Table 2: [12-month prevalence DSM-IV\/WMH-CIDI disorders by sex and cohort.](https:\/\/www.hcp.med.harvard.edu\/ncs\/ftpdir\/table_ncsr_12monthprevgenderxage.pdf)\n2. Harvard Medical School, 2007. National Comorbidity Survey (NCS). (2017, August 21). Retrieved from <https:\/\/www.hcp.med.harvard.edu\/ncs\/index.php>. Data Table 1: [Lifetime prevalence DSM-IV\/WMH-CIDI disorders by sex and cohort](https:\/\/www.hcp.med.harvard.edu\/ncs\/ftpdir\/table_ncsr_LTprevgenderxage.pdf) .\n3. Kessler RC, Chiu WT, Demler O, Merikangas KR, Walters EE. Prevalence, severity, and comorbidity of 12-month DSM-IV disorders in the National Comorbidity Survey Replication. *Arch Gen Psychiatry.* 2005 Jun;62(6):617-27. [PMID: 15939839](http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/15939839\/)\n4. Merikangas KR, He JP, Burstein M, Swanson SA, Avenevoli S, Cui L, Benjet C, Georgiades K, Swendsen J. Lifetime prevalence of mental disorders in U.S. adolescents: results from the National Comorbidity Survey Replication--Adolescent Supplement (NCS-A). *J Am Acad Child Adolesc Psychiatry.* 2010 Oct;49(10):980-9. [PMID: 20855043](http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/20855043\/)\n### Statistical Methods and Measurement Caveats\n#### National Comorbidity Survey Replication (NCS-R)\nDiagnostic Assessment and Population:\n\n- The NCS-R is a nationally representative, face-to-face, household survey conducted between February 2001 and April 2003 with a response rate of 70.9%. Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) mental disorders were assessed using a modified version of the fully structured World Health Organization Composite International Diagnostic Interview (WMH-CIDI), a fully structured lay-administered diagnostic interview that generates both International Classification of Diseases, 10th Revision, and DSM-IV diagnoses. The DSM-IV criteria were used here. The Sheehan Disability Scale (SDS) assessed disability in work role performance, household maintenance, social life, and intimate relationships on a 0–10 scale. Participants for the main interview totaled 9,282 English-speaking, non-institutionalized, civilian respondents. Any anxiety disorder was assessed in a subsample of 5,692 adults. The NCS-R was led by Harvard University.\n- Unlike the DSM-IV criteria used in the NCS-R and NCS-A, the current DSM-5 no longer places post-traumatic stress disorder or obsessive compulsive disorder in the anxiety disorder category. They are listed in new DSM5 categories.\n\nSurvey Non-response:\n\n- In 2001-2002, non-response was 29.1% of primary respondents and 19.6% of secondary respondents.\n- Reasons for non-response to interviewing include: refusal to participate (7.3% of primary, 6.3% of secondary); respondent was reluctant- too busy but did not refuse (17.7% of primary, 11.6% of secondary); circumstantial, such as intellectual developmental disability or overseas work assignment (2.0% of primary, 1.7% of secondary); and household units that were never contacted (2.0).\n- For more information, see [PMID: 15297905](https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/15297905) .\n#### National Comorbidity Survey Adolescent Supplement (NCS-A)\nDiagnostic Assessment and Population:\n\n- The NCS-A was carried out under a cooperative agreement sponsored by NIMH to meet a request from Congress to provide national data on the prevalence and correlates of mental disorders among U.S. youth. The NCS-A was a nationally representative, face-to-face survey of 10,123 adolescents aged 13 to 18 years in the continental United States. The survey was based on a dual-frame design that included 904 adolescent residents of the households that participated in the adult U.S. National Comorbidity Survey Replication and 9,244 adolescent students selected from a nationally representative sample of 320 schools. The survey was fielded between February 2001 and January 2004. DSM-IV mental disorders were assessed using a modified version of the fully structured World Health Organization Composite International Diagnostic Interview.\n\nSurvey Non-response:\n\n- The overall adolescent non-response rate was 24.4%. This is made up of non-response rates of 14.1% in the household sample, 18.2% in the un-blinded school sample, and 77.7% in the blinded school sample. Non-response was largely due to refusal (21.3%), which in the household and un-blinded school samples came largely from parents rather than adolescents (72.3% and 81.0%, respectively). The refusals in the blinded school sample, in comparison, came almost entirely (98.1%) from parents failing to return the signed consent postcard.\n- For more information, see [PMID: 19507169](https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/19507169) .\n\n## Disclaimer\nWe link to external websites for informational purposes only, but we do not endorse or guarantee their accuracy. Once you leave our site, you will be subject to the new website’s privacy policy. Read NIMH’s [full external linking policy](https:\/\/www.nimh.nih.gov\/site-info\/policies#part_2717) for more information.\n\n##### NIMH Resources\n[Health Topics](https:\/\/www.nimh.nih.gov\/health\/topics)   \n[Brochures and Fact Sheets](https:\/\/www.nimh.nih.gov\/health\/publications)   \n[Contact Us](https:\/\/www.nimh.nih.gov\/site-info\/contact-nimh)   \n[Información en español](https:\/\/www.nimh.nih.gov\/health\/topics\/espanol)\n\n##### Policies and Notices\n[Privacy Policy](https:\/\/www.nimh.nih.gov\/site-info\/privacy-policy)   \n[Website Policies](https:\/\/www.nimh.nih.gov\/site-info\/policies)   \n[FOIA](http:\/\/www.nih.gov\/icd\/od\/foia\/index.htm)    \n[Accessibility](https:\/\/www.nimh.nih.gov\/site-info\/accessibility)   \n[HHS Vulnerability Disclosure](https:\/\/www.hhs.gov\/vulnerability-disclosure-policy\/index.html)\n\n##### Federal Resources\n[National Institutes of Health (NIH)](http:\/\/www.nih.gov\/)    \n[NIH Virtual Tour](https:\/\/www.nih.gov\/virtual-tour\/)    \n[U.S. Department of Health and Human Services](https:\/\/www.hhs.gov\/)    \n[USA.gov](http:\/\/www.usa.gov\/)\n\nThe National Institute of Mental Health (NIMH) is part of NIH, a component of the U.S. Department of Health and Human Services.\n\n[Top](https:\/\/www.nimh.nih.gov\/health\/statistics\/panic-disorder#skipnav)","attrs_readable_markdown":"## Definition\n**Panic Disorder** is an anxiety disorder characterized by unexpected and repeated episodes of intense fear accompanied by physical symptoms that may include chest pain, heart palpitations, shortness of breath, dizziness, or abdominal distress. These episodes occur “out of the blue,” not in conjunction with a known fear or stressor.\n\nAdditional information about panic disorder can be found on the [NIMH Health Topics page on Anxiety Disorders](https:\/\/www.nimh.nih.gov\/health\/topics\/anxiety-disorders).\n\n## Prevalence of Panic Disorder Among Adults\n- Based on diagnostic interview data from National Comorbidity Survey Replication (NCS-R), Figure 1 shows past year prevalence of panic disorder among U.S. adults aged 18 or older.1\n  - An estimated 2.7% of U.S. adults had panic disorder in the past year.\n  - Past year prevalence of panic disorder among adults was higher for females (3.8%) than for males (1.6%).\n- An estimated 4.7% of U.S. adults experience panic disorder at some time in their lives.2\n#### Figure 1\n\nPast Year Prevalence of Panic Disorder Among U.S Adults (2001-2003)\n\nBar chart with 7 bars.\n\nData from National Comorbidity Survey Replication (NCS-R)\n\nThe chart has 1 X axis displaying categories.\n\nThe chart has 1 Y axis displaying Percent. Range: 0 to 4.\n\nEnd of interactive chart.\n\n| Demographic | Percent |   |\n|---|---|---|\n| Overall | 2\\.7 |   |\n| Sex | Female | 3\\.8 |\n| Male | 1\\.6 |   |\n| Age | 18-29 | 2\\.8 |\n| 30-44 | 3\\.7 |   |\n| 45-59 | 3\\.1 |   |\n| 60+ | 0\\.8 |   |\n\n## Panic Disorder with Impairment Among Adults\n- Of adults with panic disorder in the past year, degree of impairment ranged from mild to serious, as shown in Figure 2. Impairment was determined by scores on the Sheehan Disability Scale.3\n- Impairment was distributed evenly among adults with panic disorder. An estimated 44.8% had serious impairment, 29.5% had moderate impairment, and 25.7% had mild impairment.\n#### Figure 2\n\nPast Year Severity of Panic Disorder Among U.S. Adults (2001-2003)\n\nPie chart with 3 slices.\n\nData from National Comorbidity Survey Replication (NCS-R)\n\nEnd of interactive chart.\n\n| Severity | Percent |\n|---|---|\n| Mild | 25\\.7 |\n| Moderate | 29\\.5 |\n| Serious | 44\\.8 |\n| Total | 100 |\n\n## Prevalence of Panic Disorder Among Adolescents\n- Based on diagnostic interview data from National Comorbidity Survey Adolescent Supplement (NCS-A), Figure 3 shows lifetime prevalence of panic disorder among U.S. adolescents aged 13-18.4\n  - An estimated 2.3% of adolescents had panic disorder, and 2.3% had severe impairment. Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria were used to determine impairment.\n  - The prevalence of panic disorder among adolescents was higher for females (2.6%) than for males (2.0%).\n#### Figure 3\n\nLifetime Prevalence of Panic Disorder Among Adolescents (2001-2004)\n\nBar chart with 7 bars.\n\nData from National Comorbidity Survey Adolescent Supplement (NCS-A)\n\nThe chart has 1 X axis displaying categories.\n\nThe chart has 1 Y axis displaying Percent. Range: 0 to 4.\n\nEnd of interactive chart.\n\n| Demographic | Percent |   |\n|---|---|---|\n| Overall | 2\\.3 |   |\n| With Severe Impairment | 2\\.3 |   |\n| Sex | Female | 2\\.6 |\n| Male | 2\\.0 |   |\n| Age | 13-14 | 1\\.8 |\n| 15-16 | 2\\.3 |   |\n| 17-18 | 3\\.3 |   |\n\n## Data Sources\n### References\n1. Harvard Medical School, 2007. National Comorbidity Survey (NCS). (2017, August 21). Retrieved from <https:\/\/www.hcp.med.harvard.edu\/ncs\/index.php>. Data Table 2: [12-month prevalence DSM-IV\/WMH-CIDI disorders by sex and cohort.](https:\/\/www.hcp.med.harvard.edu\/ncs\/ftpdir\/table_ncsr_12monthprevgenderxage.pdf)\n2. Harvard Medical School, 2007. National Comorbidity Survey (NCS). (2017, August 21). Retrieved from <https:\/\/www.hcp.med.harvard.edu\/ncs\/index.php>. Data Table 1: [Lifetime prevalence DSM-IV\/WMH-CIDI disorders by sex and cohort](https:\/\/www.hcp.med.harvard.edu\/ncs\/ftpdir\/table_ncsr_LTprevgenderxage.pdf) .\n3. Kessler RC, Chiu WT, Demler O, Merikangas KR, Walters EE. Prevalence, severity, and comorbidity of 12-month DSM-IV disorders in the National Comorbidity Survey Replication. *Arch Gen Psychiatry.* 2005 Jun;62(6):617-27. [PMID: 15939839](http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/15939839\/)\n4. Merikangas KR, He JP, Burstein M, Swanson SA, Avenevoli S, Cui L, Benjet C, Georgiades K, Swendsen J. Lifetime prevalence of mental disorders in U.S. adolescents: results from the National Comorbidity Survey Replication--Adolescent Supplement (NCS-A). *J Am Acad Child Adolesc Psychiatry.* 2010 Oct;49(10):980-9. [PMID: 20855043](http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/20855043\/)\n### Statistical Methods and Measurement Caveats\n#### National Comorbidity Survey Replication (NCS-R)\nDiagnostic Assessment and Population:\n\n- The NCS-R is a nationally representative, face-to-face, household survey conducted between February 2001 and April 2003 with a response rate of 70.9%. Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) mental disorders were assessed using a modified version of the fully structured World Health Organization Composite International Diagnostic Interview (WMH-CIDI), a fully structured lay-administered diagnostic interview that generates both International Classification of Diseases, 10th Revision, and DSM-IV diagnoses. The DSM-IV criteria were used here. The Sheehan Disability Scale (SDS) assessed disability in work role performance, household maintenance, social life, and intimate relationships on a 0–10 scale. Participants for the main interview totaled 9,282 English-speaking, non-institutionalized, civilian respondents. Any anxiety disorder was assessed in a subsample of 5,692 adults. The NCS-R was led by Harvard University.\n- Unlike the DSM-IV criteria used in the NCS-R and NCS-A, the current DSM-5 no longer places post-traumatic stress disorder or obsessive compulsive disorder in the anxiety disorder category. They are listed in new DSM5 categories.\n\nSurvey Non-response:\n\n- In 2001-2002, non-response was 29.1% of primary respondents and 19.6% of secondary respondents.\n- Reasons for non-response to interviewing include: refusal to participate (7.3% of primary, 6.3% of secondary); respondent was reluctant- too busy but did not refuse (17.7% of primary, 11.6% of secondary); circumstantial, such as intellectual developmental disability or overseas work assignment (2.0% of primary, 1.7% of secondary); and household units that were never contacted (2.0).\n- For more information, see [PMID: 15297905](https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/15297905) .\n#### National Comorbidity Survey Adolescent Supplement (NCS-A)\nDiagnostic Assessment and Population:\n\n- The NCS-A was carried out under a cooperative agreement sponsored by NIMH to meet a request from Congress to provide national data on the prevalence and correlates of mental disorders among U.S. youth. The NCS-A was a nationally representative, face-to-face survey of 10,123 adolescents aged 13 to 18 years in the continental United States. The survey was based on a dual-frame design that included 904 adolescent residents of the households that participated in the adult U.S. National Comorbidity Survey Replication and 9,244 adolescent students selected from a nationally representative sample of 320 schools. The survey was fielded between February 2001 and January 2004. DSM-IV mental disorders were assessed using a modified version of the fully structured World Health Organization Composite International Diagnostic Interview.\n\nSurvey Non-response:\n\n- The overall adolescent non-response rate was 24.4%. This is made up of non-response rates of 14.1% in the household sample, 18.2% in the un-blinded school sample, and 77.7% in the blinded school sample. Non-response was largely due to refusal (21.3%), which in the household and un-blinded school samples came largely from parents rather than adolescents (72.3% and 81.0%, respectively). The refusals in the blinded school sample, in comparison, came almost entirely (98.1%) from parents failing to return the signed consent postcard.\n- For more information, see [PMID: 19507169](https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/19507169) .","meta_canonical":null}

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Meta Title	Panic Disorder - National Institute of Mental Health (NIMH)
Meta Description	Panic Disorder is an anxiety disorder characterized by unexpected and repeated episodes of intense fear accompanied by physical symptoms that may include chest pain, heart palpitations, shortness of breath, dizziness, or abdominal distress. These episodes occur “out of the blue,” not in conjunction with a known fear or stressor.
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Boilerpipe Text	Definition Panic Disorder is an anxiety disorder characterized by unexpected and repeated episodes of intense fear accompanied by physical symptoms that may include chest pain, heart palpitations, shortness of breath, dizziness, or abdominal distress. These episodes occur “out of the blue,” not in conjunction with a known fear or stressor. Additional information about panic disorder can be found on the NIMH Health Topics page on Anxiety Disorders . Prevalence of Panic Disorder Among Adults Based on diagnostic interview data from National Comorbidity Survey Replication (NCS-R), Figure 1 shows past year prevalence of panic disorder among U.S. adults aged 18 or older. 1 An estimated 2.7% of U.S. adults had panic disorder in the past year. Past year prevalence of panic disorder among adults was higher for females (3.8%) than for males (1.6%). An estimated 4.7% of U.S. adults experience panic disorder at some time in their lives. 2 Figure 1 Past Year Prevalence of Panic Disorder Among U.S Adults (2001-2003) Bar chart with 7 bars. Data from National Comorbidity Survey Replication (NCS-R) The chart has 1 X axis displaying categories. The chart has 1 Y axis displaying Percent. Range: 0 to 4. End of interactive chart. Past Year Prevalence of Panic Disorder Among U.S Adults (2001-2003) Demographic Percent Overall 2.7 Sex Female 3.8 Male 1.6 Age 18-29 2.8 30-44 3.7 45-59 3.1 60+ 0.8 Panic Disorder with Impairment Among Adults Of adults with panic disorder in the past year, degree of impairment ranged from mild to serious, as shown in Figure 2. Impairment was determined by scores on the Sheehan Disability Scale. 3 Impairment was distributed evenly among adults with panic disorder. An estimated 44.8% had serious impairment, 29.5% had moderate impairment, and 25.7% had mild impairment. Figure 2 Past Year Severity of Panic Disorder Among U.S. Adults (2001-2003) Pie chart with 3 slices. Data from National Comorbidity Survey Replication (NCS-R) End of interactive chart. Past Year Severity of Panic Disorder Among U.S. Adults (2001-2003) Severity Percent Mild 25.7 Moderate 29.5 Serious 44.8 Total 100 Prevalence of Panic Disorder Among Adolescents Based on diagnostic interview data from National Comorbidity Survey Adolescent Supplement (NCS-A), Figure 3 shows lifetime prevalence of panic disorder among U.S. adolescents aged 13-18. 4 An estimated 2.3% of adolescents had panic disorder, and 2.3% had severe impairment. Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria were used to determine impairment. The prevalence of panic disorder among adolescents was higher for females (2.6%) than for males (2.0%). Figure 3 Lifetime Prevalence of Panic Disorder Among Adolescents (2001-2004) Bar chart with 7 bars. Data from National Comorbidity Survey Adolescent Supplement (NCS-A) The chart has 1 X axis displaying categories. The chart has 1 Y axis displaying Percent. Range: 0 to 4. End of interactive chart. Lifetime Prevalence of Panic Disorder Among Adolescents (2001-2004) Demographic Percent Overall 2.3 With Severe Impairment 2.3 Sex Female 2.6 Male 2.0 Age 13-14 1.8 15-16 2.3 17-18 3.3 Data Sources References Harvard Medical School, 2007. National Comorbidity Survey (NCS). (2017, August 21). Retrieved from https://www.hcp.med.harvard.edu/ncs/index.php . Data Table 2: 12-month prevalence DSM-IV/WMH-CIDI disorders by sex and cohort. Harvard Medical School, 2007. National Comorbidity Survey (NCS). (2017, August 21). Retrieved from https://www.hcp.med.harvard.edu/ncs/index.php . Data Table 1: Lifetime prevalence DSM-IV/WMH-CIDI disorders by sex and cohort . Kessler RC, Chiu WT, Demler O, Merikangas KR, Walters EE. Prevalence, severity, and comorbidity of 12-month DSM-IV disorders in the National Comorbidity Survey Replication. Arch Gen Psychiatry. 2005 Jun;62(6):617-27. PMID: 15939839 Merikangas KR, He JP, Burstein M, Swanson SA, Avenevoli S, Cui L, Benjet C, Georgiades K, Swendsen J. Lifetime prevalence of mental disorders in U.S. adolescents: results from the National Comorbidity Survey Replication--Adolescent Supplement (NCS-A). J Am Acad Child Adolesc Psychiatry. 2010 Oct;49(10):980-9. PMID: 20855043 Statistical Methods and Measurement Caveats National Comorbidity Survey Replication (NCS-R) Diagnostic Assessment and Population: The NCS-R is a nationally representative, face-to-face, household survey conducted between February 2001 and April 2003 with a response rate of 70.9%. Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) mental disorders were assessed using a modified version of the fully structured World Health Organization Composite International Diagnostic Interview (WMH-CIDI), a fully structured lay-administered diagnostic interview that generates both International Classification of Diseases, 10 th Revision, and DSM-IV diagnoses. The DSM-IV criteria were used here. The Sheehan Disability Scale (SDS) assessed disability in work role performance, household maintenance, social life, and intimate relationships on a 0–10 scale. Participants for the main interview totaled 9,282 English-speaking, non-institutionalized, civilian respondents. Any anxiety disorder was assessed in a subsample of 5,692 adults. The NCS-R was led by Harvard University. Unlike the DSM-IV criteria used in the NCS-R and NCS-A, the current DSM-5 no longer places post-traumatic stress disorder or obsessive compulsive disorder in the anxiety disorder category. They are listed in new DSM5 categories. Survey Non-response: In 2001-2002, non-response was 29.1% of primary respondents and 19.6% of secondary respondents. Reasons for non-response to interviewing include: refusal to participate (7.3% of primary, 6.3% of secondary); respondent was reluctant- too busy but did not refuse (17.7% of primary, 11.6% of secondary); circumstantial, such as intellectual developmental disability or overseas work assignment (2.0% of primary, 1.7% of secondary); and household units that were never contacted (2.0). For more information, see PMID: 15297905 . National Comorbidity Survey Adolescent Supplement (NCS-A) Diagnostic Assessment and Population: The NCS-A was carried out under a cooperative agreement sponsored by NIMH to meet a request from Congress to provide national data on the prevalence and correlates of mental disorders among U.S. youth. The NCS-A was a nationally representative, face-to-face survey of 10,123 adolescents aged 13 to 18 years in the continental United States. The survey was based on a dual-frame design that included 904 adolescent residents of the households that participated in the adult U.S. National Comorbidity Survey Replication and 9,244 adolescent students selected from a nationally representative sample of 320 schools. The survey was fielded between February 2001 and January 2004. DSM-IV mental disorders were assessed using a modified version of the fully structured World Health Organization Composite International Diagnostic Interview. Survey Non-response: The overall adolescent non-response rate was 24.4%. This is made up of non-response rates of 14.1% in the household sample, 18.2% in the un-blinded school sample, and 77.7% in the blinded school sample. Non-response was largely due to refusal (21.3%), which in the household and un-blinded school samples came largely from parents rather than adolescents (72.3% and 81.0%, respectively). The refusals in the blinded school sample, in comparison, came almost entirely (98.1%) from parents failing to return the signed consent postcard. For more information, see PMID: 19507169 .
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These episodes occur “out of the blue,” not in conjunction with a known fear or stressor. Additional information about panic disorder can be found on the [NIMH Health Topics page on Anxiety Disorders](https://www.nimh.nih.gov/health/topics/anxiety-disorders). ## Prevalence of Panic Disorder Among Adults - Based on diagnostic interview data from National Comorbidity Survey Replication (NCS-R), Figure 1 shows past year prevalence of panic disorder among U.S. adults aged 18 or older.1 - An estimated 2.7% of U.S. adults had panic disorder in the past year. - Past year prevalence of panic disorder among adults was higher for females (3.8%) than for males (1.6%). - An estimated 4.7% of U.S. adults experience panic disorder at some time in their lives.2 #### Figure 1 Past Year Prevalence of Panic Disorder Among U.S Adults (2001-2003) Bar chart with 7 bars. Data from National Comorbidity Survey Replication (NCS-R) View as data table, Past Year Prevalence of Panic Disorder Among U.S Adults (2001-2003) The chart has 1 X axis displaying categories. The chart has 1 Y axis displaying Percent. Range: 0 to 4. Created with Highcharts 9.0.1 Percent Past Year Prevalence of Panic Disorder Among U.S Adults (2001-2003) Data from National Comorbidity Survey Replication (NCS-R) 2\.7 2\.7 3\.8 3\.8 1\.6 1\.6 2\.8 2\.8 3\.7 3\.7 3\.1 3\.1 0\.8 0\.8 Overall Female Sex Male 18-29 Age 30-44 45-59 60+ 0 1 2 3 4 End of interactive chart. \| Demographic \| Percent \| \| \|---\|---\|---\| \| Overall \| 2\.7 \| \| \| Sex \| Female \| 3\.8 \| \| Male \| 1\.6 \| \| \| Age \| 18-29 \| 2\.8 \| \| 30-44 \| 3\.7 \| \| \| 45-59 \| 3\.1 \| \| \| 60+ \| 0\.8 \| \| ## Panic Disorder with Impairment Among Adults - Of adults with panic disorder in the past year, degree of impairment ranged from mild to serious, as shown in Figure 2. Impairment was determined by scores on the Sheehan Disability Scale.3 - Impairment was distributed evenly among adults with panic disorder. An estimated 44.8% had serious impairment, 29.5% had moderate impairment, and 25.7% had mild impairment. #### Figure 2 Past Year Severity of Panic Disorder Among U.S. Adults (2001-2003) Pie chart with 3 slices. Data from National Comorbidity Survey Replication (NCS-R) View as data table, Past Year Severity of Panic Disorder Among U.S. Adults (2001-2003) Created with Highcharts 9.0.1 Past Year Severity of Panic Disorder Among U.S. Adults (2001-2003) Data from National Comorbidity Survey Replication (NCS-R) Mild 25\.7% Mild 25\.7% Moderate 29\.5% Moderate 29\.5% Serious 44\.8% Serious 44\.8% End of interactive chart. \| Severity \| Percent \| \|---\|---\| \| Mild \| 25\.7 \| \| Moderate \| 29\.5 \| \| Serious \| 44\.8 \| \| Total \| 100 \| ## Prevalence of Panic Disorder Among Adolescents - Based on diagnostic interview data from National Comorbidity Survey Adolescent Supplement (NCS-A), Figure 3 shows lifetime prevalence of panic disorder among U.S. adolescents aged 13-18.4 - An estimated 2.3% of adolescents had panic disorder, and 2.3% had severe impairment. Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria were used to determine impairment. - The prevalence of panic disorder among adolescents was higher for females (2.6%) than for males (2.0%). #### Figure 3 Lifetime Prevalence of Panic Disorder Among Adolescents (2001-2004) Bar chart with 7 bars. Data from National Comorbidity Survey Adolescent Supplement (NCS-A) View as data table, Lifetime Prevalence of Panic Disorder Among Adolescents (2001-2004) The chart has 1 X axis displaying categories. The chart has 1 Y axis displaying Percent. Range: 0 to 4. Created with Highcharts 9.0.1 Percent Lifetime Prevalence of Panic Disorder Among Adolescents (2001- 2004\) Data from National Comorbidity Survey Adolescent Supplement (NCS-A) 2\.3 2\.3 2\.3 2\.3 2\.6 2\.6 2\.0 2\.0 1\.8 1\.8 2\.3 2\.3 3\.3 3\.3 Overall With Severe Impairment Female Sex Male 13-14 Age 15-16 17-18 0 1 2 3 4 End of interactive chart. \| Demographic \| Percent \| \| \|---\|---\|---\| \| Overall \| 2\.3 \| \| \| With Severe Impairment \| 2\.3 \| \| \| Sex \| Female \| 2\.6 \| \| Male \| 2\.0 \| \| \| Age \| 13-14 \| 1\.8 \| \| 15-16 \| 2\.3 \| \| \| 17-18 \| 3\.3 \| \| ## Data Sources ### References 1. Harvard Medical School, 2007. National Comorbidity Survey (NCS). (2017, August 21). Retrieved from <https://www.hcp.med.harvard.edu/ncs/index.php>. Data Table 2: [12-month prevalence DSM-IV/WMH-CIDI disorders by sex and cohort.](https://www.hcp.med.harvard.edu/ncs/ftpdir/table_ncsr_12monthprevgenderxage.pdf) 2. Harvard Medical School, 2007. National Comorbidity Survey (NCS). (2017, August 21). Retrieved from <https://www.hcp.med.harvard.edu/ncs/index.php>. Data Table 1: [Lifetime prevalence DSM-IV/WMH-CIDI disorders by sex and cohort](https://www.hcp.med.harvard.edu/ncs/ftpdir/table_ncsr_LTprevgenderxage.pdf) . 3. Kessler RC, Chiu WT, Demler O, Merikangas KR, Walters EE. Prevalence, severity, and comorbidity of 12-month DSM-IV disorders in the National Comorbidity Survey Replication. Arch Gen Psychiatry. 2005 Jun;62(6):617-27. [PMID: 15939839](http://www.ncbi.nlm.nih.gov/pubmed/15939839/) 4. Merikangas KR, He JP, Burstein M, Swanson SA, Avenevoli S, Cui L, Benjet C, Georgiades K, Swendsen J. Lifetime prevalence of mental disorders in U.S. adolescents: results from the National Comorbidity Survey Replication--Adolescent Supplement (NCS-A). J Am Acad Child Adolesc Psychiatry. 2010 Oct;49(10):980-9. [PMID: 20855043](http://www.ncbi.nlm.nih.gov/pubmed/20855043/) ### Statistical Methods and Measurement Caveats #### National Comorbidity Survey Replication (NCS-R) Diagnostic Assessment and Population: - The NCS-R is a nationally representative, face-to-face, household survey conducted between February 2001 and April 2003 with a response rate of 70.9%. Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) mental disorders were assessed using a modified version of the fully structured World Health Organization Composite International Diagnostic Interview (WMH-CIDI), a fully structured lay-administered diagnostic interview that generates both International Classification of Diseases, 10th Revision, and DSM-IV diagnoses. The DSM-IV criteria were used here. The Sheehan Disability Scale (SDS) assessed disability in work role performance, household maintenance, social life, and intimate relationships on a 0–10 scale. Participants for the main interview totaled 9,282 English-speaking, non-institutionalized, civilian respondents. Any anxiety disorder was assessed in a subsample of 5,692 adults. The NCS-R was led by Harvard University. - Unlike the DSM-IV criteria used in the NCS-R and NCS-A, the current DSM-5 no longer places post-traumatic stress disorder or obsessive compulsive disorder in the anxiety disorder category. They are listed in new DSM5 categories. Survey Non-response: - In 2001-2002, non-response was 29.1% of primary respondents and 19.6% of secondary respondents. - Reasons for non-response to interviewing include: refusal to participate (7.3% of primary, 6.3% of secondary); respondent was reluctant- too busy but did not refuse (17.7% of primary, 11.6% of secondary); circumstantial, such as intellectual developmental disability or overseas work assignment (2.0% of primary, 1.7% of secondary); and household units that were never contacted (2.0). - For more information, see [PMID: 15297905](https://www.ncbi.nlm.nih.gov/pubmed/15297905) . #### National Comorbidity Survey Adolescent Supplement (NCS-A) Diagnostic Assessment and Population: - The NCS-A was carried out under a cooperative agreement sponsored by NIMH to meet a request from Congress to provide national data on the prevalence and correlates of mental disorders among U.S. youth. The NCS-A was a nationally representative, face-to-face survey of 10,123 adolescents aged 13 to 18 years in the continental United States. The survey was based on a dual-frame design that included 904 adolescent residents of the households that participated in the adult U.S. National Comorbidity Survey Replication and 9,244 adolescent students selected from a nationally representative sample of 320 schools. The survey was fielded between February 2001 and January 2004. DSM-IV mental disorders were assessed using a modified version of the fully structured World Health Organization Composite International Diagnostic Interview. Survey Non-response: - The overall adolescent non-response rate was 24.4%. This is made up of non-response rates of 14.1% in the household sample, 18.2% in the un-blinded school sample, and 77.7% in the blinded school sample. Non-response was largely due to refusal (21.3%), which in the household and un-blinded school samples came largely from parents rather than adolescents (72.3% and 81.0%, respectively). The refusals in the blinded school sample, in comparison, came almost entirely (98.1%) from parents failing to return the signed consent postcard. - For more information, see [PMID: 19507169](https://www.ncbi.nlm.nih.gov/pubmed/19507169) . ## Disclaimer We link to external websites for informational purposes only, but we do not endorse or guarantee their accuracy. Once you leave our site, you will be subject to the new website’s privacy policy. 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Readable Markdown	## Definition Panic Disorder is an anxiety disorder characterized by unexpected and repeated episodes of intense fear accompanied by physical symptoms that may include chest pain, heart palpitations, shortness of breath, dizziness, or abdominal distress. These episodes occur “out of the blue,” not in conjunction with a known fear or stressor. Additional information about panic disorder can be found on the [NIMH Health Topics page on Anxiety Disorders](https://www.nimh.nih.gov/health/topics/anxiety-disorders). ## Prevalence of Panic Disorder Among Adults - Based on diagnostic interview data from National Comorbidity Survey Replication (NCS-R), Figure 1 shows past year prevalence of panic disorder among U.S. adults aged 18 or older.1 - An estimated 2.7% of U.S. adults had panic disorder in the past year. - Past year prevalence of panic disorder among adults was higher for females (3.8%) than for males (1.6%). - An estimated 4.7% of U.S. adults experience panic disorder at some time in their lives.2 #### Figure 1 Past Year Prevalence of Panic Disorder Among U.S Adults (2001-2003) Bar chart with 7 bars. Data from National Comorbidity Survey Replication (NCS-R) The chart has 1 X axis displaying categories. The chart has 1 Y axis displaying Percent. Range: 0 to 4. End of interactive chart. \| Demographic \| Percent \| \| \|---\|---\|---\| \| Overall \| 2\.7 \| \| \| Sex \| Female \| 3\.8 \| \| Male \| 1\.6 \| \| \| Age \| 18-29 \| 2\.8 \| \| 30-44 \| 3\.7 \| \| \| 45-59 \| 3\.1 \| \| \| 60+ \| 0\.8 \| \| ## Panic Disorder with Impairment Among Adults - Of adults with panic disorder in the past year, degree of impairment ranged from mild to serious, as shown in Figure 2. Impairment was determined by scores on the Sheehan Disability Scale.3 - Impairment was distributed evenly among adults with panic disorder. An estimated 44.8% had serious impairment, 29.5% had moderate impairment, and 25.7% had mild impairment. #### Figure 2 Past Year Severity of Panic Disorder Among U.S. Adults (2001-2003) Pie chart with 3 slices. Data from National Comorbidity Survey Replication (NCS-R) End of interactive chart. \| Severity \| Percent \| \|---\|---\| \| Mild \| 25\.7 \| \| Moderate \| 29\.5 \| \| Serious \| 44\.8 \| \| Total \| 100 \| ## Prevalence of Panic Disorder Among Adolescents - Based on diagnostic interview data from National Comorbidity Survey Adolescent Supplement (NCS-A), Figure 3 shows lifetime prevalence of panic disorder among U.S. adolescents aged 13-18.4 - An estimated 2.3% of adolescents had panic disorder, and 2.3% had severe impairment. Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria were used to determine impairment. - The prevalence of panic disorder among adolescents was higher for females (2.6%) than for males (2.0%). #### Figure 3 Lifetime Prevalence of Panic Disorder Among Adolescents (2001-2004) Bar chart with 7 bars. Data from National Comorbidity Survey Adolescent Supplement (NCS-A) The chart has 1 X axis displaying categories. The chart has 1 Y axis displaying Percent. Range: 0 to 4. End of interactive chart. \| Demographic \| Percent \| \| \|---\|---\|---\| \| Overall \| 2\.3 \| \| \| With Severe Impairment \| 2\.3 \| \| \| Sex \| Female \| 2\.6 \| \| Male \| 2\.0 \| \| \| Age \| 13-14 \| 1\.8 \| \| 15-16 \| 2\.3 \| \| \| 17-18 \| 3\.3 \| \| ## Data Sources ### References 1. Harvard Medical School, 2007. National Comorbidity Survey (NCS). (2017, August 21). Retrieved from <https://www.hcp.med.harvard.edu/ncs/index.php>. Data Table 2: [12-month prevalence DSM-IV/WMH-CIDI disorders by sex and cohort.](https://www.hcp.med.harvard.edu/ncs/ftpdir/table_ncsr_12monthprevgenderxage.pdf) 2. Harvard Medical School, 2007. National Comorbidity Survey (NCS). (2017, August 21). Retrieved from <https://www.hcp.med.harvard.edu/ncs/index.php>. Data Table 1: [Lifetime prevalence DSM-IV/WMH-CIDI disorders by sex and cohort](https://www.hcp.med.harvard.edu/ncs/ftpdir/table_ncsr_LTprevgenderxage.pdf) . 3. Kessler RC, Chiu WT, Demler O, Merikangas KR, Walters EE. Prevalence, severity, and comorbidity of 12-month DSM-IV disorders in the National Comorbidity Survey Replication. Arch Gen Psychiatry. 2005 Jun;62(6):617-27. [PMID: 15939839](http://www.ncbi.nlm.nih.gov/pubmed/15939839/) 4. Merikangas KR, He JP, Burstein M, Swanson SA, Avenevoli S, Cui L, Benjet C, Georgiades K, Swendsen J. Lifetime prevalence of mental disorders in U.S. adolescents: results from the National Comorbidity Survey Replication--Adolescent Supplement (NCS-A). J Am Acad Child Adolesc Psychiatry. 2010 Oct;49(10):980-9. [PMID: 20855043](http://www.ncbi.nlm.nih.gov/pubmed/20855043/) ### Statistical Methods and Measurement Caveats #### National Comorbidity Survey Replication (NCS-R) Diagnostic Assessment and Population: - The NCS-R is a nationally representative, face-to-face, household survey conducted between February 2001 and April 2003 with a response rate of 70.9%. Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) mental disorders were assessed using a modified version of the fully structured World Health Organization Composite International Diagnostic Interview (WMH-CIDI), a fully structured lay-administered diagnostic interview that generates both International Classification of Diseases, 10th Revision, and DSM-IV diagnoses. The DSM-IV criteria were used here. The Sheehan Disability Scale (SDS) assessed disability in work role performance, household maintenance, social life, and intimate relationships on a 0–10 scale. Participants for the main interview totaled 9,282 English-speaking, non-institutionalized, civilian respondents. Any anxiety disorder was assessed in a subsample of 5,692 adults. The NCS-R was led by Harvard University. - Unlike the DSM-IV criteria used in the NCS-R and NCS-A, the current DSM-5 no longer places post-traumatic stress disorder or obsessive compulsive disorder in the anxiety disorder category. They are listed in new DSM5 categories. Survey Non-response: - In 2001-2002, non-response was 29.1% of primary respondents and 19.6% of secondary respondents. - Reasons for non-response to interviewing include: refusal to participate (7.3% of primary, 6.3% of secondary); respondent was reluctant- too busy but did not refuse (17.7% of primary, 11.6% of secondary); circumstantial, such as intellectual developmental disability or overseas work assignment (2.0% of primary, 1.7% of secondary); and household units that were never contacted (2.0). - For more information, see [PMID: 15297905](https://www.ncbi.nlm.nih.gov/pubmed/15297905) . #### National Comorbidity Survey Adolescent Supplement (NCS-A) Diagnostic Assessment and Population: - The NCS-A was carried out under a cooperative agreement sponsored by NIMH to meet a request from Congress to provide national data on the prevalence and correlates of mental disorders among U.S. youth. The NCS-A was a nationally representative, face-to-face survey of 10,123 adolescents aged 13 to 18 years in the continental United States. The survey was based on a dual-frame design that included 904 adolescent residents of the households that participated in the adult U.S. National Comorbidity Survey Replication and 9,244 adolescent students selected from a nationally representative sample of 320 schools. The survey was fielded between February 2001 and January 2004. DSM-IV mental disorders were assessed using a modified version of the fully structured World Health Organization Composite International Diagnostic Interview. Survey Non-response: - The overall adolescent non-response rate was 24.4%. This is made up of non-response rates of 14.1% in the household sample, 18.2% in the un-blinded school sample, and 77.7% in the blinded school sample. Non-response was largely due to refusal (21.3%), which in the household and un-blinded school samples came largely from parents rather than adolescents (72.3% and 81.0%, respectively). The refusals in the blinded school sample, in comparison, came almost entirely (98.1%) from parents failing to return the signed consent postcard. - For more information, see [PMID: 19507169](https://www.ncbi.nlm.nih.gov/pubmed/19507169) .
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