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However, longitudinal population-based studies on unipolar mania from low-income countries are lacking. This study therefore examined unipolar mania, in Butajira, Ethiopia, and associations with possible determinants.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>Key informants and 68,378 screenings with the Composite International Diagnostic Interviews (CIDI 2.1) identified suspected cases of bipolar disorder. Diagnosis was confirmed using the Schedules for Clinical Assessment in Neuropsychiatry (SCAN 2.1) (<jats:italic>n<\/jats:italic>\u2009=\u20092,285). 315 participants with bipolar disorder were recruited and followed up for an average of 2.5\u00a0years. Unipolar mania was defined when illness episodes consisted of at least two manic relapses. 240 cases had sufficient data to ascertain course of disorder.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>41.7% (100 of 240 cases) of participants had unipolar mania. Unipolar mania was associated with less suicidal ideation (0% vs. 26.4%, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001), less suicidal thoughts (occasionally\/often: 1%\/3% vs. 19.6%\/21%, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001), and less history of suicide attempt (2% vs. 11.6%, <jats:italic>p<\/jats:italic>\u2009=\u20090.01). The participants with unipolar mania tended to have better social functioning (OR\u2009=\u20092.05, <jats:italic>p<\/jats:italic>\u2009=\u20090.07) and less alcohol use (20.8% vs. 31.4%, <jats:italic>p<\/jats:italic>\u2009=\u20090.07). The study was partly based on retrospective data liable to recall bias. Some cases defined as unipolar mania in our study may later develop depression.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusion<\/jats:title>\n                <jats:p>Previous cross-sectional studies finding high proportions of unipolar mania in low-income countries appear supported. Unipolar mania trended towards better social functioning and was associated with lower suicidality. Future unipolar mania specifications could inform treatment and prognostic estimates of bipolar disorder.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1007\/s00127-022-02399-4","type":"journal-article","created":{"date-parts":[[2022,12,24]],"date-time":"2022-12-24T13:02:27Z","timestamp":1671886947000},"page":"537-545","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Prevalence and characteristics of unipolar mania in a low-income country setting: population-based data from the Butajira cohort, rural Ethiopia"],"prefix":"10.1007","volume":"58","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9766-6735","authenticated-orcid":false,"given":"Fredrik","family":"Wikstr\u00f6m","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hugo","family":"Zeberg","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rosie","family":"Mayston","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lena","family":"Backlund","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abebaw","family":"Fekadu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2022,12,24]]},"reference":[{"issue":"2","key":"2399_CR1","first-page":"53","volume":"60","author":"SG Simpson","year":"1999","unstructured":"Simpson SG, Jamison KR (1999) The risk of suicide in patients with bipolar disorders. 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Ethical approval for the current secondary study was provided by the MSc Ethics committee of London School of Hygiene and Tropical Medicine (ref: 10323).","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}},{"value":"Informed consent was obtained from all individual participants included in the study.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent"}}]}}