Table 1

The relationship of maternal smoking during pregnancy to features at birth; values are mean (SD)

Maternal smoking in pregnancyp Value
Yes (n=250)No (n=968)
Gestational age (weeks)39.8 (1.8)39.9 (1.4)NS
Birth weight (g)3290 (500)3500 (500)<0.001
Cord IgE (ku/l, n=1064)0.29 (0.7)0.32 (0.9)NS
  • Mann-Whitney U test; NS = not significant.