Characteristics of the study populations and prevalence of insomnia related symptoms in relation to reported building dampness
| No building dampness (n = 13154) | Building dampness (n = 2872) | p value | |
|---|---|---|---|
| Results expressed as % and mean (SD). | |||
| Age, years | 40.1 (7.3) | 38.5 (7.2) | <0.001 |
| Women | 52.2 | 57.0 | <0.001 |
| Smoking history | <0.001 | ||
| Never smokers | 46.3 | 42.9 | |
| Ex-smokers | 25.1 | 25.2 | |
| Current smokers | 28.6 | 31.9 | <0.001 |
| Type of housing | <0.001 | ||
| Detached house | 44.2 | 35.2 | |
| Semi-detached house | 15.6 | 14.4 | |
| Apartment | 40.3 | 50.4 | |
| Age of housing | <0.001 | ||
| 0–10 years | 14.2 | 9.0 | |
| 11–20 years | 20.0 | 17.5 | |
| 21–40 years | 33.6 | 35.8 | |
| 41–60 years | 15.4 | 17.0 | |
| More than 60 years | 16.7 | 20.7 | |
| Insomnia (at least one symptom) | 23.6 | 29.4 | <0.001 |
| Difficulty inducing sleep | 7.3 | 10.0 | <0.001 |
| Difficulty maintaining sleep | 17.8 | 22.4 | <0.001 |
| Early morning awakenings | 8.6 | 10.4 | 0.002 |