Symptom | First year of life only | Current only | Both times | RERI |
Current wheeze | 1.38 (1.24 to 1.53) | 1.23 (1.14 to 1.32) | 1.39 (1.31 to 1.47) | −0.218 (−0.432 to −0.004) |
Severe asthma symptoms | 1.36 (1.17 to 1.58) | 1.21 (1.09 to 1.34) | 1.48 (1.36 to 1.61) | −0.093 (−0.405 to 0.219) |
Asthma ever | 1.41 (1.27 to 1.56) | 1.20 (1.11 to 1.30) | 1.37 (1.28 to 1.45) | −0.247 (−0.462 to −0.031) |
Current eczema symptoms | 1.19 (1.06 to 1.33) | 1.11 (1.03 to 1.20) | 1.21 (1.13 to 1.29) | −0.089 (−0.293 to 0.114) |
Current rhinoconjunctivitis symptoms | 1.18 (1.05 to 1.33) | 1.07 (0.99 to 1.16) | 1.16 (1.09 to 1.24) | −0.097 (−0.299 to 0.106) |
Eczema symptoms without wheeze | 1.13 (0.99 to 1.29) | 1.10 (1.01 to 1.20) | 1.11 (1.02 to 1.20) | −0.086 (−0.317 to 0.145) |
Rhinoconjunctivitis symptoms without wheeze | 1.08 (0.93 to 1.25) | 1.03 (0.94 to 1.13) | 1.03 (0.94 to 1.12) | −0.123 (−0.343 to 0.096) |
Data are OR (95% CI) and are adjusted for gender, language, region and GNI category. Reference group: mother non-smoker for first year of child's life and non-smoker now.
RERI, relative excess risk due to interaction between the two smoking exposures.