New onset of asthma in relation to self-reported dampness and mould scores and number of rooms with mould, ECRHS I and II
| Asthma | Asthma with BHR | ||||||
|---|---|---|---|---|---|---|---|
| n % | Adjusted RR* | 95% CI | p Value | Adjusted RR* | 95% CI | p Value | |
| Damp score | n=5870 | ||||||
| 0 | 50.3 | 1 | (ref.) | 1 | (ref.) | ||
| 1–2 | 37.8 | 1.14 | (0.90 to 1.45) | 0.284 | 0.83 | (0.44 to 1.56) | 0.571 |
| 3–5 | 11.9 | 1.28 | (0.91 to 1.81) | 0.150 | 1.26 | (0.55 to 2.87) | 0.580 |
| Trend | 1.09 | (1.00 to 1.20) | 0.047 | 1.03 | (0.81 to 1.30) | 0.835 | |
| Mould score | n=6698 | ||||||
| 0 | 58.4 | 1 | (ref.) | 1 | (ref.) | ||
| 1–2 | 30.8 | 1.05 | (0.82 to 1.33) | 0.722 | 0.62 | (0.31 to 1.25) | 0.181 |
| 3–4 | 10.8 | 1.73 | (1.27 to 2.37) | 0.001 | 1.83 | (0.88 to 3.80) | 0.105 |
| Trend | 1.12 | (1.03 to 1.22) | 0.007 | 1.08 | (0.87 to 1.34) | 0.477 | |
| Rooms with mould (n) | n=6776 | ||||||
| 0 | 76.0 | 1 | (ref.) | 1 | (ref.) | ||
| 1 | 21.2 | 1.30 | (1.02 to 1.66) | 0.035 | 1.24 | (0.66 to 2.32) | 0.511 |
| 2–3 | 2.8 | 1.43 | (0.83 to 2.48) | 0.196 | 2.41 | (0.82 to 7.05) | 0.108 |
| Dose-response | 1.17 | (1.04 to 1.32) | 0.011 | 1.31 | (0.99 to 1.74) | 0.057 | |
*Adjusted for age, sex, smoking status and centre.
RR, relative risks.