Comparison 5. Randomised trials: hand hygiene + medical/surgical masks compared to hand hygiene.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
5.1 Viral illness | 3 | Risk Ratio (IV, Random, 95% CI) | Subtotals only | |
5.1.1 Influenza‐like illness | 3 | 2982 | Risk Ratio (IV, Random, 95% CI) | 1.03 [0.69, 1.53] |
5.1.2 Laboratory‐confirmed influenza | 3 | 2982 | Risk Ratio (IV, Random, 95% CI) | 0.99 [0.69, 1.44] |