Maternal smoking during pregnancy | 1.47 | (1.29 to 1.67) | | 1.19 | (1.02 to 1.39) |
ETS | 1.31 | (1.18 to 1.45) | | 1.17 | (1.03 to 1.32) |
Maternal history of asthma | 2.00 | (1.72 to 2.31) | | 2.03 | (1.74 to 2.37) |
Preterm delivery | 1.59 | (1.26 to 2.01) | | 1.66 | (1.30 to 2.13) |
Male sex | 1.42 | (1.28 to 1.57) | | 1.42 | (1.28 to 1.59) |
Rented accommodation | 1.57 | (1.38 to 1.77) | | 1.29 | (1.11 to 1.51) |
Damp (fairly or very severe) | 1.46 | (1.16 to 1.82) | | 1.08 | (0.77 to 1.52) |
Mould (fairly or very severe) | 1.36 | (1.00 to 1.84) | | 0.87 | (0.56 to 1.35) |
Each additional child in household | 1.19 | (1.12 to 1.26) | | 1.13 | (1.04 to 1.24) |
Number of previous pregnancies | 1.13 | (1.09 to 1.18) | | 1.01 | (0.95 to 1.08) |
Single mother | 1.28 | (1.13 to 1.45) | | 1.07 | (0.92 to 1.24) |
Breast feeding (any) | 0.88 | (0.77 to 0.99) | | 0.97 | (0.85 to 1.11) |