{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T11:27:04Z","timestamp":1789644424666,"version":"4.0.0"},"reference-count":51,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2024,12,9]],"date-time":"2024-12-09T00:00:00Z","timestamp":1733702400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Can J Psychiatry"],"published-print":{"date-parts":[[2025,2]]},"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Posttraumatic stress disorder (PTSD) affects 3.9%\u20135.6% of the worldwide population, with well-documented sex-related differences. While psychosocial and hormonal factors affecting sex differences in PTSD and posttraumatic stress (PTS) symptom etiology have been explored, there has been limited focus on the genetic bases of these differences. Many symptom combinations may confer a PTSD diagnosis. We hypothesized that these symptom combinations have sex-specific patterns, the examination of which could inform etiological differences in PTSD genetics between males and females.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>To investigate this, we performed a sex-stratified multivariate genome-wide association study (GWAS) in unrelated UK Biobank (UKB) individuals of European ancestry. Using GWAS summary association data, genomic structural equation modelling was performed to generate sex-specific factor models using 6 indicator variables: trouble concentrating, feeling distant from others, irritability, disturbing thoughts, upset feelings, and avoidance of places\/activities which remind the individual of a traumatic event.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Models of male and female PTSD symptoms differed substantially (local standardized root mean square difference\u2009=\u20093.12) and significantly (\u03c7\n                      <jats:sup>2<\/jats:sup>\n                      (5)\u2009=\u200928.03, P\u2009=\u20093.6\u2009\u00d7\u200910\n                      <jats:sup>\u22125<\/jats:sup>\n                      ). Independent 2-factor models best fit the data in both males and females; these factors were subjected to GWAS in each sex, revealing 3 genome-wide significant loci in females, mapping to SCAND3, WDPCP, and FAM120A. No genome-wide significant loci were identified in males. All 4 PTS factors (2 in males and 2 in females) were heritable.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>By assessing the relationship between sex and PTSD symptoms, this study informs correlative and putatively causal etiological differences between males and females which support further investigation of sex differences in PTSD genetics.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/07067437241301016","type":"journal-article","created":{"date-parts":[[2024,12,10]],"date-time":"2024-12-10T01:40:19Z","timestamp":1733794819000},"page":"117-126","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Sex-stratified Genomic Structural Equation Models of Posttraumatic Stress Inform PTSD Etiology: L'utilisation de la mod\u00e9lisation g\u00e9nomique par \u00e9quations structurelles stratifi\u00e9e par sexe du stress post-traumatique pour expliquer l'\u00e9tiologie du TSPT"],"prefix":"10.1177","volume":"70","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3266-2792","authenticated-orcid":false,"given":"Ashley","family":"Moo-Choy","sequence":"first","affiliation":[{"name":"Department of Anthropology, University of Toronto, Toronto, ON, Canada"},{"name":"Forensic Science Program, University of Toronto, Mississauga, ON, Canada"},{"name":"Krembil Centre for Neuroinformatics, Centre for Addiction and Mental Health, Toronto, ON, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Murray B.","family":"Stein","sequence":"additional","affiliation":[{"name":"VA San Diego Healthcare System, Psychiatry Service, San Diego, CA, USA"},{"name":"Department of Psychiatry, University of California San Diego, La Jolla, CA, USA"},{"name":"Herbert Wertheim School of Public Health and Human Longevity Science, University of California San Diego, La Jolla, CA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joel","family":"Gelernter","sequence":"additional","affiliation":[{"name":"Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA"},{"name":"VA CT Healthcare System, West Haven, CT, USA"},{"name":"Department of Genetics, Yale School of Medicine, New Haven, CT, USA"},{"name":"Department of Neuroscience, Yale School of Medicine, New Haven, CT, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frank R.","family":"Wendt","sequence":"additional","affiliation":[{"name":"Department of Anthropology, University of Toronto, Toronto, ON, Canada"},{"name":"Forensic Science Program, University of Toronto, Mississauga, ON, Canada"},{"name":"Biostatistics Division, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, 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