New onset of asthma in relation to self-reported dampness and moulds at baseline and at baseline or follow-up (ever vs never exposed)
| Asthma | Asthma and BHR | ||||||
|---|---|---|---|---|---|---|---|
| (n=6984) | (n=6615) | ||||||
| Exposed (%) | Adjusted RR* | 95% CI | PAF (%) | Adjusted RR* | 95% CI | PAF (%) | |
| Exposed at baseline (ECRHS I) | |||||||
| Water damage in last 12 months | 11.3 | 1.46 | (1.09 to 1.94) | 4.8 | 1.48 | (0.71 to 3.07) | 5.7 |
| Mould in last 12 months | 18.6 | 1.30 | (1.00 to 1.68) | 5.1 | 1.16 | (0.61 to 2.22) | 3.0 |
| Mould in bedroom (ever) | 11.4 | 1.08 | (0.79 to 1.48) | 1.0 | 0.97 | (0.43 to 2.16) | – |
| Mould in living room (ever) | 6.1 | 1.34 | (0.91 to 1.97) | 2.0 | 1.50 | (0.61 to 3.69) | 2.7 |
| Ever exposed (ECRHS I and/or ECRHS II) versus never exposed | |||||||
| Water damage in last 12 months | 19.1 | 1.29 | (1.00 to 1.66) | 5.1 | 1.22 | (0.63 to 2.36) | 4.3 |
| Mould in the last 12 months | 28.9 | 1.36 | (1.08 to 1.70) | 10.3 | 1.23 | (0.70 to 2.19) | 7.9 |
| Mould in bedroom (ever) | 18.4 | 1.43 | (1.12 to 1.84) | 4.9 | 1.14 | (0.57 to 2.26) | 2.5 |
| Mould in living room (ever) | 10.0 | 1.48 | (1.10 to 2.01) | 3.4 | 2.24 | (1.15 to 4.36) | 8.0 |
| Damp spots, last 12 months† | 19.7 | 1.28 | (1.00 to 1.65) | 5.3 | 0.96 | (0.49 to 1.89) | – |
*Adjusted for age, sex, smoking status and centre.
†Available only at ECRHS II.
BHR, bronchial hyper-responsiveness; ECRHS, European Community Respiratory Health Survey; PAF, population attributable fraction; RR, relative risks