Univariable regression | Multivariable regression# | |||
Odds ratio (95% CI) | p-value | Odds ratio (95% CI) | p-value | |
Wheeze in the last 12 months | ||||
Girls | 0.93 (0.69–1.25) | 0.620 | 1.10 (0.80–1.53) | 0.551 |
Boys | 1.41 (0.96–2.08) | 0.078 | 1.52 (0.98–2.36) | 0.062 |
Dry cough at night in the last 12 months | ||||
Girls | 0.99 (0.91–1.08) | 0.864 | 1.00 (0.92–1.10) | 0.930 |
Boys | 1.16 (1.06–1.27) | 0.001 | 1.14 (1.04–1.25) | 0.004 |
Sneezing/runny, or blocked nose in last 12 months | ||||
Girls | 0.96 (0.69–1.35) | 0.830 | 0.83 (0.50–1.37) | 0.459 |
Boys | 1.19 (0.89–1.60) | 0.235 | 1.19 (0.86–1.65) | 0.295 |
The odds ratios indicate the increased risk of a 10-µg·m−3 increase in particulate matter with an aerodynamic diameter ≤4 μm (24-h time-weighted average). #: adjusted for socioeconomic circumstances, maternal education, presence of a smoker in the household and urban or rural residence.