Severe mental illness and infectious disease mortality: a systematic review and meta-analysis.

Regarding heterogeneity ( Table S6 ), type of respiratory infection emerged as borderline significant (p = 0.051, Figure S7 ) with a stronger pooled effect size seen for pneumonia (pooled RR = 4.15, 95% CI = 3.42–5.04) compared to studies that grouped influenza and pneumonia together (pooled RR = 2.78, 95% CI = 1.95–3.96).

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