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We assessed posttraumatic stress disorder (PTSD), postdeployment experiences, social functioning, and psychological strengths at baseline, midpoint, and 12\u2010week discharge using the PTSD Checklist for <jats:italic>DSM\u20105<\/jats:italic> (PCL\u20105), Deployment Risk and Resilience Inventory\u20132, Social Adaptation Self\u2010evaluation Scale, and Values in Action Survey. Brief weekly check\u2010in surveys reinforced mentor contact and assessed retention. The sample included 307 veterans who were served by 17 veteran peer mentors. Mixed\u2010effects linear models found a modest effect for PTSD symptom change, with a mean PCL\u20105 score reduction of 4.04 points, 95% CI [\u22126.44, \u22121.64], <jats:italic>d =<\/jats:italic> 0.44. More symptomatic veterans showed a larger effect, with average reductions of 9.03 points, 95% CI [\u201012.11, \u20105.95], <jats:italic>d<\/jats:italic> = 0.77. There were no significant findings for other outcome variables. Compared to younger veterans, those aged 32\u201357 years were less likely to drop out by 6 weeks, a<jats:italic>OR<\/jats:italic>s = 0.32\u20130.26. Week\u2010by\u2010week hazard of drop\u2010out was lower with mentors \u2265 35 years old, a<jats:italic>HR<\/jats:italic> = 0.62, 95% CI [0.37, 1.05]. Unadjusted survival differed by mentor military branch, <jats:italic>p<\/jats:italic> =\u00a0.028, but the small mentor sample reduced interpretability. Like many community research efforts, this study lacked a control group, limiting the inferences that can be drawn. Continued study of veteran peer mentorship is important as this modality is often viewed as more tolerable than therapy.<\/jats:p>","DOI":"10.1002\/jts.23038","type":"journal-article","created":{"date-parts":[[2024,4,18]],"date-time":"2024-04-18T14:59:01Z","timestamp":1713452341000},"page":"617-630","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Impact of veteran\u2010led peer mentorship on posttraumatic stress disorder"],"prefix":"10.1002","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6533-4226","authenticated-orcid":false,"given":"Zeno","family":"Franco","sequence":"first","affiliation":[{"name":"Department of Family and Community Medicine Medical College of Wisconsin  Milwaukee Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6318-3583","authenticated-orcid":false,"given":"Leslie","family":"Ruffalo","sequence":"additional","affiliation":[{"name":"Department of Family and Community Medicine Medical College of Wisconsin  Milwaukee Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9875-4091","authenticated-orcid":false,"given":"Bob","family":"Curry","sequence":"additional","affiliation":[{"name":"Great Lakes Dryhootch  Milwaukee Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0527-2390","authenticated-orcid":false,"given":"Martina","family":"Gollin\u2010Graves","sequence":"additional","affiliation":[{"name":"Mental Health America of Wisconsin  Milwaukee Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5385-7647","authenticated-orcid":false,"given":"Sheikh Iqbal","family":"Ahamed","sequence":"additional","affiliation":[{"name":"Department of Computer Science Marquette University  Milwaukee Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-1789-0511","authenticated-orcid":false,"given":"Otis","family":"Winstead","sequence":"additional","affiliation":[{"name":"Great Lakes Dryhootch  Milwaukee Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7938-112X","authenticated-orcid":false,"given":"Katinka","family":"Hooyer","sequence":"additional","affiliation":[{"name":"Department of Family and Community Medicine Medical College of Wisconsin  Milwaukee Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1610-4157","authenticated-orcid":false,"given":"Myah","family":"Pazdera","sequence":"additional","affiliation":[{"name":"Office of Community Engagement Medical College of Wisconsin  Milwaukee Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3867-2577","authenticated-orcid":false,"given":"Lisa","family":"Rein","sequence":"additional","affiliation":[{"name":"Institute for Health &amp; Equity, Division of Biostatistics Medical College of Wisconsin  Milwaukee Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8126-4048","authenticated-orcid":false,"given":"Jose","family":"Lizarraga Mazaba","sequence":"additional","affiliation":[{"name":"Department of Family and Community Medicine Medical College of Wisconsin  Milwaukee Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5674-5840","authenticated-orcid":false,"given":"Md Fitrat","family":"Hossain","sequence":"additional","affiliation":[{"name":"Department of Computer Science Marquette University  Milwaukee Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8229-4134","authenticated-orcid":false,"given":"Virginia","family":"Stoffel","sequence":"additional","affiliation":[{"name":"Department of Rehabilitation Sciences &amp; Technology University of Wisconsin\u2010Milwaukee  Milwaukee Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2164-6367","authenticated-orcid":false,"given":"Mark","family":"Flower","sequence":"additional","affiliation":[{"name":"Mental Health America of Wisconsin  Milwaukee Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-9737-9601","authenticated-orcid":false,"given":"Praveen","family":"Madiraju","sequence":"additional","affiliation":[{"name":"Department of Computer Science Marquette University  Milwaukee Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3657-7958","authenticated-orcid":false,"given":"Stephen","family":"Melka","sequence":"additional","affiliation":[{"name":"Clement J. 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