Table 1

Characteristics of the study participants

Asthma (n=289)Controls (n=431)Difference (mean (95% CI))p Value
Male59%51%8% (−4% to 52%)0.25
GA (weeks, mean (SD))38.6 (1.2)38.7 (1.1)0.1 (−0.7 to 0.7)0.28
Age (years, mean (SD))4.9 (0.9)4.8 (0.8)0.1 (−0.3 to 0.6)0.29
Family history of atopy75%38%37% (11% to 59%)<0.001
Family history of asthma69%6%63% (58% to 87%)<0.001
Family history of eczema8%1%7% (0% to 14%)0.017
ETS exposure57%42%15% (5% to 23%)0.051
  • ETS, environmental tobacco smoke; GA, gestational age at birth.