ReviewThe British journal of psychiatry : the journal of mental science2026
Prevalence of chronic kidney disease in people with severe mental illness: systematic review and meta-analysis.
Review in The British journal of psychiatry : the journal of mental science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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10 authors.
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Abstract
backgroundPeople with severe mental illness (SMI) are more likely to develop long-term physical health conditions compared with those without SMI, contributing to an inequality in life expectancy. Chronic kidney disease (CKD) is a growing global health concern set to be the fifth leading cause of life-years lost by 2040. Although people with SMI may have a higher risk of CKD, there is limited research exploring the relationship between CKD and SMI.
aimsThis review aimed to examine the prevalence, incidence and risk of CKD among people with SMI.
methodWe searched Medline, Embase, PsycINFO, CINAHL, Scopus and Web of Science for epidemiological research reporting the prevalence of CKD (of any stage according to Kidney Disease Improving Global Outcomes guidelines) among people with SMI. Records were imported into Covidence and screened by two reviewers. Meta-analyses were conducted using random-effects models to examine the prevalence, incidence and risk of CKD among people with SMI.
resultsForty-eight studies were included in the review. The pooled prevalence of CKD was 8% in studies of people with SMI (95% CI 5%, 18%) and was highest in studies focused only on participants with bipolar disorder (95% CI 0.15 (0.06, 0.26)). The pooled incidence rate of CKD was 26.83 cases (95% CI 18.66, 38.58) per 1000 person-years. People with SMI had significantly higher odds of CKD compared with those without SMI (odds ratio 2.33 [95% CI 1.70, 3.21]).
conclusionPeople with SMI are at a significantly higher risk of having CKD compared with those without SMI. Although psychiatric medication and high rates of diabetes may play a role, the drivers of this inequality are under-researched.
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