Table 6

Tobacco smoke exposure and child respiratory morbidity by 12 months of age

Tobacco smoke exposure from birth to 12 months of age (N=934)Child respiratory morbidities by 12 months old
Total wheezing episodesTotal croupy cough episodesPrescription of nebuliserTotal ear infection episodesTotal fever episodesTotal snoring episodesTotal episodes of hospitalisation due to respiratory diseaseTotal episodes of all-cause hospitalisation
N825817812814925403822843
Missing data (%)33.233.934.334.125.167.333.531.8
Adjusted RR
95% CI
1.71 (1.38 to 2.11)1.33 (0.86 to 2.04)0.85 (0.51 to 1.42)1.20 (0.55 to 2.61)1.18 (1.02 to 1.36)1.13 (0.84 to 1.52)1.89 (1.02 to 3.50)1.57 (1.14 to 2.17)
p Value<0.0010.200.540.650.030.410.040.01
  • Adjusted for race, maternal education level, household income, child eczema from birth to 12 months of age and parental atopy.