Wheeze | Cough | Dyspnoea | ||||
Same day | Lag 1 | Same day | Lag 1 | Same day | Lag 1 | |
UFGH versus other heater used (n=1713 vs 2421 days) | 1.21 (0.99 to 1.48) | 1.22 (1.00 to 1.50)* | 0.77 (0.53 to 1.11) | 0.79 (0.54 to 1.15) | 0.78 (0.56 to 1.09) | 0.79 (0.56 to 1.12) |
UFGH used versus no heating (n=1713 vs 1388 days) | 1.25 (1.05 to 1.50)* | 1.22 (1.01 to 1.48)* | 1.38 (0.91 to 2.09) | 1.55 (1.00 to 2.40)* | 1.87 (1.30 to 2.70)* | 2.05 (1.41 to 2.99)* |
Other heater used versus no heating (n=2421 vs 1388 days) | 1.01 (0.88 to 1.17) | 1.03 (0.89 to 1.20) | 1.15 (0.83 to 1.59) | 1.21 (0.85 to 1.71) | 1.40 (0.99 to 2.00) | 1.56 (1.07 to 2.28)* |
Adjusted for age, gender, exposure to tobacco smoke, exposure to cooking gas, ambient temperature, humidity and external NO2 levels.
↵* Significant finding (p<0.05).
UFGH, unflued gas heater.