From: Effects of air pollution on restricted activity days: systematic review and meta-analysis
Pollutant | Outcome | Domain | Articles | N | RR (95%CI) (Random-effects model) |
---|---|---|---|---|---|
PM10 | WLD and SLD combined | Confounding | 4 | 4 | 1.0120 (0.9997–1.0244) |
PM10 | WLD and SLD combined | Outcome | 4 | 4 | 1.0240 (0.9923–1.0567) |
PM2.5 | SLD | Confounding | 3 | 5 | 1.0146 (0.9987–1.0307) |
PM2.5 | SLD | Outcome | 2 | 4 | 1.0124 (0.9985–1.0265) |
NO2 | WLD and SLD combined | Confounding | 3 | 3 | 1.0065 (0.9997–1.0133) |
NO2 | WLD and SLD combined | Outcome | 3 | 3 | 0.9796 (0.9631–0.9963) |