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This study aimed to investigate the prevalence and incidence of dementia in this population. Data were synthesized through meta\u2010analysis (including subgroup and sensitivity analyses) and\u00a0narrative synthesis. The pooled dementia prevalence was 24.3% (95% CI: 20.5%\u201328.5%,\n                    <jats:italic>I<\/jats:italic>\n                    <jats:sup>\n                      <jats:italic>2<\/jats:italic>\n                    <\/jats:sup>\n                    \u2009=\u200984.7%,\n                    <jats:italic>p<\/jats:italic>\n                    \u2009&lt;\u20090.001) in older\u00a0adults after excluding one outlier. Factors contributing to heterogeneity included prevalence types, settings, geographical regions, and age. The dementia incidence varied widely. This review identified elevated but heterogeneous dementia\u00a0rates\u00a0in\u00a0psychotic\u00a0disorders, calling for more population\u2010based studies to provide evidence for integrated service planning.\n                  <\/jats:p>","DOI":"10.1111\/appy.70033","type":"journal-article","created":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T08:34:45Z","timestamp":1787128485000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Prevalence and Incidence of Dementia for Schizophrenia and Other Primary Psychotic Disorders: A Systematic Review and Meta\u2010Analysis"],"prefix":"10.1111","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2327-9334","authenticated-orcid":false,"given":"Mengyi","family":"Gao","sequence":"first","affiliation":[{"name":"Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Minxiu","family":"Ji","sequence":"additional","affiliation":[{"name":"Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Caidi","family":"Zhang","sequence":"additional","affiliation":[{"name":"Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine  Shanghai China"},{"name":"School of Psychology Shanghai Jiao Tong University  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-5281-8153","authenticated-orcid":false,"given":"Shuying","family":"Wang","sequence":"additional","affiliation":[{"name":"Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chun","family":"Wang","sequence":"additional","affiliation":[{"name":"Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine  Shanghai China"},{"name":"School of Psychology Shanghai Jiao Tong University  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yikang","family":"Zhu","sequence":"additional","affiliation":[{"name":"Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine  Shanghai China"},{"name":"Shanghai Key Laboratory of Psychotic Disorders  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaochun","family":"Qiu","sequence":"additional","affiliation":[{"name":"Shanghai Jiao Tong University School of Medicine  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3414-450X","authenticated-orcid":false,"given":"Raymond C. K.","family":"Chan","sequence":"additional","affiliation":[{"name":"Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health Institute of Psychology, Chinese Academy of Sciences  Beijing China"},{"name":"Department of Psychology University of Chinese Academy of Sciences  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4934-4352","authenticated-orcid":false,"given":"Stefan","family":"Leucht","sequence":"additional","affiliation":[{"name":"Department of Psychiatry and Psychotherapy Technical University of Munich, TUM School of Medicine and Health  Munich Germany"},{"name":"German Center for Mental Health  Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3476-9833","authenticated-orcid":false,"given":"Xinyi","family":"Cao","sequence":"additional","affiliation":[{"name":"Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine  Shanghai China"},{"name":"School of Psychology Shanghai Jiao Tong University  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chunbo","family":"Li","sequence":"additional","affiliation":[{"name":"Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine  Shanghai China"},{"name":"School of Psychology Shanghai Jiao Tong University  Shanghai China"},{"name":"Shanghai Key Laboratory of Psychotic Disorders  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,19]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmjment\u20102025\u2010301651"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.2147\/ndt.S172933"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.3233\/jad\u2010191092"},{"key":"e_1_2_12_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.eclinm.2023.102294"},{"key":"e_1_2_12_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140\u20106736(24)00757\u20108"},{"key":"e_1_2_12_7_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12888\u2010022\u201004368\u20102"},{"key":"e_1_2_12_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jagp.2012.10.025"},{"key":"e_1_2_12_9_1","doi-asserted-by":"publisher","DOI":"10.1001\/jamaneurol.2021.2161"},{"key":"e_1_2_12_10_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12912\u2010025\u201004117\u20102"},{"key":"e_1_2_12_11_1","volume-title":"Cochrane Handbook for Systematic Reviews of Interventions Version 6.4 (Updated August 2023)","author":"Higgins J. 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