Table 2
Relative risks estimates of conjunctivitis for an increase from the 5th to the 95th percentile of a pollution variable adjusted on the day of the week. The univariate model is adjusted on the day of the week. The multivariate model includes all environmental covariates and the day of the week, the most significant of which are selected by a stepwise procedure
| Lag (days) | Univariate RR* P95/P5 | 95% CI† | Multivariate RR P95/P5 | 95% CI | Range P95/P5 | |
|---|---|---|---|---|---|---|
| *Relative risk. | ||||||
| †Confidence interval. | ||||||
| NO | 2 | 1.11, p=0.28 | 0.92 to 1.36 | 80/3 | ||
| NO2 | 2 | 1.27, p=0.04 | 1.01 to 1.60 | 1.51, p=0.002 | 1.17 to 1.96 | 80/30 |
| O3 | 0 | 1.13, p=0.28 | 0.90 to 1.42 | 74/5 | ||
| SO2 | 1 | 0.88, p=0.31 | 0.70 to 1.12 | 27/2 | ||
| PM10 | 2 | 1.20, p=0.11 | 0.96 to 1.49 | 388/101 | ||
| Temperature (min) | 1 | 0.94, p=0.57 | 0.77 to 1.15 | 0.7/17.6 | ||
| Temperature (max) | 3 | 0.95, p=0.58 | 0.78 to 1.15 | 1.29, p=0.007 | 1.07 to 1.56 | 5.3/29.8 |
| Atmospheric pressure | 2 | 1.11, p=0.35 | 0.90 to 1.36 | 1019.6/991.2 | ||
| Humidity (min) | 3 | 1.13, p=0.20 | 0.94 to 1.35 | 82/33 | ||
| Humidity (max) | 2 | 0.84, p=0.13 | 0.66 to 1.06 | 77/97 | ||
| Average wind speed | 0 | 1.10, p=0.28 | 0.92 to 1.31 | 5.0/1.6 | ||
| Instant wind strength | 0 | 1.12, p=0.15 | 0.96 to 1.31 | 1.17, p=0.03 | 1.02 to 1.36 | 19/6 |
