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This study examined the performance of the Dimensions of Anger Reactions\u20135 (DAR\u20105) scale, a brief screen for problematic anger, in a sample of 1,383 postpartum women in Wisconsin who received perinatal home visiting services. We aimed to analyze the discriminant validity and measurement invariance of the DAR\u20105, the occurrence of problematic anger symptoms and their co\u2010occurrence with mental health concerns, and the association between elevated anger levels and exposure to potentially traumatic events in childhood and adulthood. Descriptive statistics for anger symptoms and their associations with depression, anxiety, and PTSD were calculated. Psychometric properties of the DAR\u20105 were assessed via confirmatory factor analyses, and associations between trauma exposure and anger were evaluated as bivariate and partial correlations. Approximately 21% of the sample exhibited problematic anger based on an established DAR\u20105 cutoff score (\u2265 12). Anger symptoms co\u2010occurred with posttraumatic stress disorder (PTSD), depressive, and anxiety symptoms, though the DAR\u20105 sufficiently distinguished anger from these correlated symptom profiles. The DAR\u20105 also demonstrated acceptable measurement invariance across levels of trauma exposure. Higher levels of trauma exposure in childhood and adulthood significantly increased the risk of problematic anger even after controlling for PTSD, anxiety, and depressive symptoms, partial <jats:bold><jats:sub>pb<\/jats:sub><\/jats:bold> range:\u00a0.07\u2013.16. The findings suggest the DAR\u20105 is a valid brief screen for anger in postpartum women. Increased attention should be paid to elevated anger and the co\u2010occurrence of other mental health concerns following childbirth.<\/jats:p>","DOI":"10.1002\/jts.23109","type":"journal-article","created":{"date-parts":[[2024,10,21]],"date-time":"2024-10-21T17:03:17Z","timestamp":1729530197000},"page":"124-134","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Postpartum anger among low\u2010income women with high rates of trauma exposure"],"prefix":"10.1002","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1884-3877","authenticated-orcid":false,"given":"ChienTi","family":"Plummer Lee","sequence":"first","affiliation":[{"name":"Institute for Child and Family Well\u2010Being, Helen Bader School of Social Welfare University of Wisconsin\u2013Milwaukee  Milwaukee Wisconsin USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joshua P.","family":"Mersky","sequence":"additional","affiliation":[{"name":"Institute for Child and Family Well\u2010Being, Helen Bader School of Social Welfare University of Wisconsin\u2013Milwaukee  Milwaukee Wisconsin USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiyao","family":"Liu","sequence":"additional","affiliation":[{"name":"Institute for Child and Family Well\u2010Being, Helen Bader School of Social Welfare University of Wisconsin\u2013Milwaukee  Milwaukee Wisconsin USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2024,10,21]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jad.2021.10.078"},{"key":"e_1_2_7_3_1","doi-asserted-by":"crossref","unstructured":"American Psychiatric Association. 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