Tests | Number collected | Mean (Wald 95% CI) | Mean ratio (95% CI) | % Reduction | P-value |
---|---|---|---|---|---|
Non-charcoal smoking | 144 | 4.0 (3.4-4.9) | – | – | – |
Charcoal burning | 135 | 3.7 (3.2–4.4) | 1 | – | – |
J. procera | 33 | 0.9 (0.7–1.3) | 0.26 (0.07–0.24) | 74 | < 0.001 |
E. globulus | 41 | 1.1 (0.8–1.6) | 0.29 (0.21–0.64) | 71 | < 0.001 |
O. europaea | 21 | 0.58 (0.4–0.9) | 0.15 (0.07–0.15) | 85 | < 0.001 |