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Meta-analysis links diabetic retinopathy with anxiety and depression in over 383,000 patients.

Meta-analysis links diabetic retinopathy with anxiety and depression in over 383,000 patients.
Photo by v2osk / Unsplash
Key Takeaway
Note the significant association between diabetic retinopathy and depression in this meta-analysis of observational data.

This meta-analysis examines the relationship between diabetic retinopathy (DR) and mental health disorders, specifically anxiety and depression, within a large cohort of patients with diabetes mellitus. The study aggregates data from multiple observational sources to assess whether DR is associated with increased risks for these psychiatric conditions. The scope covers the bidirectional nature of this relationship, though the authors note that observational designs inherently limit causal inference.

The primary synthesized finding indicates a significant positive correlation between diabetic retinopathy and depression. The pooled analysis yielded an odds ratio of 1.58 with a 95% confidence interval of 1.24 to 2.02, suggesting that patients with DR have higher odds of depression compared to those without. The study did not report specific adverse events, discontinuations, or tolerability data, nor did it provide absolute numbers for the outcomes beyond the statistical estimates.

The authors acknowledge that while the study aimed to prove a bidirectional relationship, the evidence base consists of observational studies that assess association rather than causation. Consequently, the results should be interpreted as indicative of a link between retinopathy and mental health status, rather than establishing a direct causal pathway. No specific limitations were explicitly listed by the authors, and funding or conflict of interest information was not reported. The practice relevance remains to be determined by clinicians considering the strength of observational evidence in this context.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedApr 2026
View Original Abstract ↓
IntroductionDiabetic retinopathy (DR) stands as the most frequently observed microvascular complication caused by diabetes mellitus (DM). This study aimed to prove whether there was a bidirectional relationship of DR with anxiety and depression.MethodsThis study included 34 studies in total. Two researchers independently screened and extracted the data relevant to this study. The Newcastle-Ottawa Scale and the tools of the Agency for Healthcare Research and Quality were employed for the evaluation of the included studies. Stata 15.1 was applied for computing the odds ratio (OR), hazard ratio (HR), and 95% confidence interval (CI), and the relationship of DR with anxiety and depression was analyzed. The publication bias was evaluated leveraging funnel plots and Egger’s test. The sensitivity analysis was conducted by sequentially removing each study.ResultsThis meta-analysis included 34 studies in total, involving 383,195 patients. A significantly positive correlation was observed between DR and depression (OR = 1.58; 95%CI:1.24-2.02; p
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