Table 1

Age,a smoking status,b and coal useb of mothers

Krakow (n = 70)Limanowa (n = 90)
Mother’s age (yr)27.6± 5.3c25.4± 4.1
Current smokers12c (17%)4 (4%)
Ex-smokers20 (29%)18 (20%)
Nonsmokers38 (54%)68 (76%)
ETSd exposure (nonsmokers only)22 (58%)42 (62%)
Heating by coal stove (yes)16c (23%)45 (50%)
  • a Mean ± SD.

  • b Number of subjects (%).

  • c P < 0.01 Krakow compared with Limanowa.

  • d ETS, environmental tobacco smoke.