Odds ratios and 95% confidence intervals for hospitalisation due to pneumonia associated with increase in 10 units of particulate matter
| Pollutant | Mean±sd | Interquartile range | Maximum | OR (95% CI) | |||
| All# | Age >65 years | Age >65 years+Male | Age >65 years+CVD | ||||
| PM10 μg·m−3 | 54.31±43.8 | 18.8 | 1531.9 | 1.007 (0.996–1.019) | 1.018 (1.005–1.031) | 1.019 (1.000–1.040) | 1.016 (1.002–1.030) |
| PM2.5 μg·m−3 | 21.63±13.2 | 6.2 | 471.6 | 1.051 (1.013–1.091) | 1.078 (1.032–1.127) | 1.108 (1.037–1.184) | 1.072 (1.023–1.123) |
Odds ratios and 95% confidence intervals were estimated from conditional logistic regression analysis at its most statistically significant single lag (lag 5) adjusted for temperature and relative humidity. CVD: cardiovascular disease.#: all sexes and ages.