Table 2

 Characteristics of the study population and prevalence of respiratory symptoms and asthma in dry versus damp homes

Any dampnessp value
No (n = 13122)Yes (n = 2873)
Values are percentages unless otherwise stated.
Mean (SD) age (years)40.1 (7.3)38.5 (7.2)<0.0001
Women52.157.0<0.0001
Smoking history0.0008
    Never smokers46.242.9
    Ex-smokers25.125.2
    Current smokers28.631.9
Type of housing<0.0001
    Apartment40.250.4
    Semi-detached15.514.3
    Detached44.235.2
Age of housing (years)<0.0001
    0–1010.75.9
    11–2019.616.4
    21–4034.136.0
    >4035.741.7
Respiratory symptoms
    Wheeze19.126.0<0.0001
    Nocturnal breathlessness4.48.4<0.0001
    Nocturnal cough27.236.5<0.0001
    Productive cough16.622.3<0.0001
    Asthma6.07.70.0009