RespiratoryIRRLower boundUpper boundP valuesInjuriesIRRLower boundUpper boundP values
Windows and doors0.880.761.020.0910Windows and doors0.830.631.090.1859
Wall insulation0.950.831.090.4578Wall insulation0.870.671.130.3072
Loft insulation1.110.981.250.1082Loft insulation1.000.791.280.9872
Heating systems1.311.111.550.0018Heating systems0.920.641.340.6785
Kitchens0.980.751.270.8603Kitchens1.050.631.750.8523
Bathrooms0.950.751.200.6831Bathrooms0.800.511.250.3267
Electrical systems0.790.640.980.0287Electrical systems0.690.461.030.0701
Garden paths0.800.710.920.0011Garden paths0.720.560.920.0103