{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,29]],"date-time":"2026-10-29T00:41:26Z","timestamp":1793234486780,"version":"4.5.0"},"reference-count":61,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2022,9,3]],"date-time":"2022-09-03T00:00:00Z","timestamp":1662163200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>In Peru, major disasters like the 2007 Pisco earthquake have produced high rates of post-traumatic stress. However, evidence is still needed to strengthen interventions. In 2021, a major earthquake struck Piura, in northern Peru. In this context, we aimed to assess the prevalence of PTSD and its associated factors. A cross-sectional study was conducted during August\u2013September 2021 in people who experienced the 6.1 Piura earthquake on 30 July 2021. The questionnaire included the PCL-C, CD-RISC, ISI, HFIAS, and additional demographic data. Generalized linear models were used. The prevalence of PTSD was 20.3%. Household income was between PEN 2001 and 3000 (PR = 4.26, 95% CI: 1.08\u201316.75), smoking (PR = 2.49, 95% CI: 1.03\u20136.01), experience of a nervous breakdown (PR = 1.83, 95% CI: 1.09\u20133.09), moderate food insecurity (PR = 2.91, 95% CI: 1.10\u20137.73), and severe insomnia (PR = 8.25, 95% CI: 2.22\u201330.71) increased the prevalence of PTSD. One out of five individuals experienced post-traumatic stress symptoms after the 2021 earthquake in Piura, which varies depending on socioeconomic, psychosocial, and individual factors. Further research should strengthen these findings to ensure a fair and early mental health intervention against new seismic events in this and other Peruvian regions.<\/jats:p>","DOI":"10.3390\/ijerph191711035","type":"journal-article","created":{"date-parts":[[2022,9,6]],"date-time":"2022-09-06T05:17:23Z","timestamp":1662441443000},"page":"11035","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Post-Traumatic Stress Disorder after the 6.1 Magnitude Earthquake in Piura, Peru: A Cross-Sectional Study"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0839-2419","authenticated-orcid":false,"given":"Mario J.","family":"Valladares-Garrido","sequence":"first","affiliation":[{"name":"South American Center for Education and Research in Public Health, Universidad Norbert Wiener, Lima 15046, Peru"},{"name":"Hospital Regional Lambayeque, Chiclayo 14012, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9811-1857","authenticated-orcid":false,"given":"Luis E.","family":"Zapata-Castro","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Universidad Nacional de Piura, Piura 20002, Peru"},{"name":"Sociedad Cient\u00edfica de Estudiantes de Medicina de la Universidad Nacional de Piura (SOCIEMUNP), Piura 20002, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0971-8708","authenticated-orcid":false,"given":"C. Ichiro","family":"Peralta","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Universidad Nacional Federico Villarreal, Lima 15088, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3679-4239","authenticated-orcid":false,"given":"Abiga\u00edl","family":"Garc\u00eda-Vicente","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Universidad Nacional de Piura, Piura 20002, Peru"},{"name":"Sociedad Cient\u00edfica de Estudiantes de Medicina de la Universidad Nacional de Piura (SOCIEMUNP), Piura 20002, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5022-6954","authenticated-orcid":false,"given":"David","family":"Astudillo-Rueda","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Universidad C\u00e9sar Vallejo, Piura 20001, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7267-0204","authenticated-orcid":false,"given":"Darwin A.","family":"Le\u00f3n-Figueroa","sequence":"additional","affiliation":[{"name":"Emerge, Emerging Diseases and Climate Change Research Unit, School of Public Health and Administration, Universidad Peruana Cayetano Heredia, Lima 15013, Peru"},{"name":"Faculty of Medicine, Universidad de San Mart\u00edn de Porres, Chiclayo 14012, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4593-2509","authenticated-orcid":false,"given":"Cristian","family":"D\u00edaz-V\u00e9lez","sequence":"additional","affiliation":[{"name":"School of Medicine, Universidad Privada Antenor Orrego, Trujillo 13008, Peru"},{"name":"Instituto de Evaluaci\u00f3n de Tecnolog\u00edas en Salud e Investigaci\u00f3n-IETSI, EsSalud, Lima 15072, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,9,3]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"703","DOI":"10.1515\/revneuro-2020-0006","article-title":"Depression in Post-Traumatic Stress Disorder","volume":"31","author":"Radell","year":"2020","journal-title":"Rev. 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