{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,25]],"date-time":"2026-02-25T18:21:29Z","timestamp":1772043689538,"version":"3.50.1"},"reference-count":55,"publisher":"BMJ","issue":"1","license":[{"start":{"date-parts":[[2024,1,31]],"date-time":"2024-01-31T00:00:00Z","timestamp":1706659200000},"content-version":"unspecified","delay-in-days":30,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Open"],"accepted":{"date-parts":[[2024,1,11]]},"published-print":{"date-parts":[[2024,1]]},"abstract":"<jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Approximately 4%\u20135% of mothers develop childbirth-related post-traumatic stress disorder (CB-PTSD) and approximately 12.3% of mothers develop some CB-PTSD symptoms (CB-PTSS). To date, there is a dearth of studies on fathers and other coparents. Parental CB-PTSD and CB-PTSS may have a negative impact not only on the parents but also on the infant. Understanding risk and protective factors of CB-PTSD for both parents and its consequences on the family is key to detecting or anticipating it, to developing interventions aimed at reducing its detrimental effects and to supporting parents.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods and analysis<\/jats:title>\n                    <jats:p>This study protocol describes an observational, population-based study, consisting of a longitudinal prospective cohort with online surveys at four time points. The population of interest consist of women, in the third trimester of pregnancy or at 6\u201312 weeks postpartum, and their partner\/coparent, who will give birth or gave birth in the French-speaking part of Switzerland. The target sample size is 300\u2013500\u2009women and a proportional number of partners. The primary outcome of this study is the prevalence of CB-PTSD and CB-PTSS. The secondary outcomes focus on: (1) the impact of CB-PTSD and CB-PTSS on the marital and coparental relationships, the bonding with the infant, parental burnout and healthcare seeking behaviours, (2) the role of the childbirth experience in the development of CB-PTSD and CB-PTSS and (3) the social and economic determinants of CB-PTSD and CB-PTSS.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Ethics and dissemination<\/jats:title>\n                    <jats:p>Ethical approval was granted by the human research ethics committee of the Canton de Vaud (study number 2022-00284). All study participants signed an informed consent form. Dissemination of results will occur via national and international conferences, in peer-reviewed journals, public conferences and social media.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Trial registration number<\/jats:title>\n                    <jats:p>\n                      <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"clintrialgov\" xlink:href=\"NCT05865704\">NCT05865704<\/jats:ext-link>\n                      .\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmjopen-2023-080557","type":"journal-article","created":{"date-parts":[[2024,1,31]],"date-time":"2024-01-31T01:11:55Z","timestamp":1706663515000},"page":"e080557","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":1,"title":["Swiss cohort on Traumatic Childbirth and Health (SwiTCH): protocol for a prospective, population-based cohort study on parents\u2019 mental health from pregnancy to one year postpartum"],"prefix":"10.1136","volume":"14","clinical-trial-number":[{"clinical-trial-number":"nct05865704","registry":"10.18810\/clinical-trials-gov"},{"clinical-trial-number":"nct05865704","registry":"10.18810\/clinical-trials-gov"}],"author":[{"given":"H\u00e9l\u00e8ne","family":"Chanvrier","sequence":"first","affiliation":[{"name":"Institute of Higher Education and Research in Healthcare, University of Lausanne, Lausanne, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Valentine","family":"Rattaz","sequence":"additional","affiliation":[{"name":"Institute of Higher Education and Research in Healthcare, University of Lausanne, Lausanne, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Valentin","family":"Offredi","sequence":"additional","affiliation":[{"name":"Institute of Higher Education and Research in Healthcare, University of Lausanne, Lausanne, Switzerland"},{"name":"University Department of Child and Adolescent Psychiatry, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marc","family":"Dupuis","sequence":"additional","affiliation":[{"name":"Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9950-9661","authenticated-orcid":false,"given":"Antje","family":"Horsch","sequence":"additional","affiliation":[{"name":"Institute of Higher Education and Research in Healthcare, University of Lausanne, Lausanne, Switzerland"},{"name":"Department of Woman Mother and Child, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2024,1,30]]},"reference":[{"key":"2025121600480935000_14.1.e080557.1","doi-asserted-by":"crossref","first-page":"102157","DOI":"10.1016\/j.cpr.2022.102157","article-title":"Prevalence and risk factors of birth-related posttraumatic stress among parents: a comparative systematic review and meta-analysis","volume":"94","author":"Heyne","year":"2022","journal-title":"Clin Psychol Rev"},{"key":"2025121600480935000_14.1.e080557.2","doi-asserted-by":"crossref","unstructured":"American Psychiatric Association . 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