| Total with information n | Proportion | |
| Age yrs | 972 | 44.4 (38.0–53.6) |
| Females | 481/972 | 49.4 |
| Asthma score | ||
| 0 | 673/972 | 69.1 |
| 1 | 172/972 | 17.7 |
| 2 | 75/972 | 7.7 |
| 3 | 23/972 | 2.3 |
| 4 | 18/972 | 1.8 |
| 5 | 12/972 | 1.2 |
| Smokers | ||
| Never | 408/972 | 41.9 |
| Ever | 280/972 | 28.8 |
| Current | 283/972 | 29.1 |
| Hay fever/nasal allergies | 251/972 | 25.8 |
| IgE to HDM | 140/972 | 14.4 |
| IgE to grass pollen | 117/972 | 12.0 |
| IgE to cat | 66/972 | 6.7 |
| IgE to HDM, grass pollen or cat | 235/972 | 24.1 |
| Geometric mean IgE kU·L−1 | 874 | 39.8 |
| Proportion with FEV1<LLN# | 54/909 | 6.9 |
| Proportion with FVC<LLN# | 46/909 | 5.1 |
| Cat or dog in house | 316/972 | 32.5 |
| Mould in bedroom | 63/972 | 6.4 |
| Damp in bedroom | 43/972 | 4.4 |
| House built before 1970 | 467/972 | 48.0 |
| Mattress <1 yr old | 53/972 | 5.5 |
| Household density | 961 | 0.75 (0.3–1.3) |
| CD14/-260 rs2569190¶ | ||
| CC | 126/561 | 22.4 |
| CT | 282/561 | 50.2 |
| TT | 153/561 | 27.3 |
Data are presented as median (interquartile range) or %, unless otherwise stated. Ig: immunoglobulin; HDM: house dust mite; FEV1: forced expiratory volume in 1 s; LLN: lower limit of normal; FVC: forced vital capacity. #: LLN from [22]; ¶: in addition, two tagging single-nucleotide polymorphisms (tagSNPs) in TLR2 (rs1816702 and rs1898830) were found in 562 and 560 individuals, respectively, and five tagSNPs in TLR4 (rs1554973, rs1927914, rs2737191, rs10759930 and rs11536889) in 567, 564, 567, 566 and 516 individuals, respectively.