Table 3

Odds ratios for wheeze due to maternal smoking during pregnancy and ETS exposure

Odds ratio
(males)
Odds ratio
(females)
Mantel–Haenszel OR (95% CI)3-150
Maternal smoking during pregnancy
 First 6 months1.611.471.55 (1.36 to 1.77)
 6 to 18 months1.381.341.36 (1.20 to 1.55)
 18 to 30 months1.491.421.46 (1.28 to 1.67)
ETS exposure
 First 6 months1.311.341.32 (1.19 to 1.47)
 6 to 18 months1.321.153-150 1.24 (1.12 to 1.38)
 18 to 30 months1.301.331.31 (1.18 to 1.46)
  • 3-150 95% confidence interval includes unity.