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Our goal was to build upon the existing literature by examining the efficacy of a group cognitive\u2010behavioral treatment (GCBT) for PTSD relative to group present\u2010centered treatment (GPCT). The sample consisted of 198 male veterans with PTSD who were recruited at two Department of Veteran Affairs medical centers and randomly assigned to either GCBT (<jats:italic>n<\/jats:italic> = 98) or GPCT (<jats:italic>n<\/jats:italic> = 100); both treatments were 14 sessions. Assessments occurred at baseline, midtreatment, posttreatment, and 3\u2010, 6\u2010, and 12\u2010month follow\u2010ups. Findings indicated significant reductions in PTSD severity and PTSD diagnostic status following treatment for both GCBT, <jats:italic>d<\/jats:italic> = 0.97, and GPCT, <jats:italic>d<\/jats:italic> = 0.61. In addition, we observed significant reductions for depression symptoms, anxiety symptoms, and functional impairment for both group treatments as well as a reduction in the percentage of veteran participants who met diagnostic status for co\u2010occurring major depression disorder and generalized anxiety disorder. Notably, these treatment gains were maintained at 12\u2010month follow\u2010up. Contrary to expectations, there were no significant differences between treatment conditions. Veterans diagnosed with PTSD were successfully treated using a group approach. Consistent with a growing body of evidence, the findings also suggest GPCT is as equally efficacious as group trauma\u2010focused treatment. The trial was registered at clinicaltrials.gov (NCT01544088).<\/jats:p>","DOI":"10.1002\/jts.22338","type":"journal-article","created":{"date-parts":[[2018,11,30]],"date-time":"2018-11-30T07:33:57Z","timestamp":1543563237000},"page":"886-898","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":31,"title":["A Randomized Controlled Trial of Group Cognitive Behavioral Treatment for Veterans Diagnosed With Chronic Posttraumatic Stress Disorder"],"prefix":"10.1002","volume":"31","author":[{"given":"Denise M.","family":"Sloan","sequence":"first","affiliation":[{"name":"VA Boston Healthcare System  Boston Massachusetts USA"},{"name":"National Center for PTSD  Boston Massachusetts USA"},{"name":"Boston University School of Medicine Department of Psychiatry  Boston Massachusetts USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"William","family":"Unger","sequence":"additional","affiliation":[{"name":"VA Providence Medical Center  Providence Rhode Island USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel J.","family":"Lee","sequence":"additional","affiliation":[{"name":"VA Boston Healthcare System  Boston Massachusetts USA"},{"name":"National Center for PTSD  Boston Massachusetts USA"},{"name":"Boston University School of Medicine Department of Psychiatry  Boston Massachusetts USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J. 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