Comparison 4. Zinc versus placebo.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Mortality	3	433	Risk Ratio (M‐H, Random, 95% CI)	1.24 [0.53, 2.86]
1.1 People with HIV on ART	1	231	Risk Ratio (M‐H, Random, 95% CI)	1.39 [0.58, 3.32]
1.2 People with HIV not on ART and on treatment for active tuberculosis	2	202	Risk Ratio (M‐H, Random, 95% CI)	1.62 [0.22, 11.89]
2 Persistence of diarrhoea	1	104	Hazard Ratio (Random, 95% CI)	0.91 [0.50, 1.66]
2.1 People with HIV not on ART	1	104	Hazard Ratio (Random, 95% CI)	0.91 [0.50, 1.66]
3 Rate of diarrhoea	1	231	Odds Ratio (Random, 95% CI)	0.40 [0.18, 0.87]
3.1 People with HIV on ART	1	231	Odds Ratio (Random, 95% CI)	0.40 [0.18, 0.87]