Table 3

Comparison of coefficients of variation with exposure to indoor pollutants in winter and summer

WinterSummer
Exposed Not exposedSE of the differencep ValueExposedNot exposed SE of the differencep Value
Smoking9.98.90.430.028.36.50.44<  0.001
Gas cooker9.29.60.430.37.47.20.43  0.7
Calor gas fire9.79.30.460.47.27.40.48  0.6
Paraffin heater11.09.42.30.56.87.32.1  0.8
Pets9.19.80.430.17.27.40.42  0.7