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Table 2 Parental Smoking habits in brief

From: Smoking habits of Greek preschool children's parents

   Father Mother p-value
Smoking Prevalence
Current smoker   51.9 (726)1 36.1 (510)  
Non smoker 30.8 (431) 52.2 (737) < 0.001
Ex smoker 17.2 (241) 11.6 (164)  
Years
Current smoker 18 ± 6 2 12 ± 5 < 0.001
Ex smoker 14 ± 8 9 ± 6 < 0.001
Quantity (cigarettes/day)
Current smoker 23 ± 12 2 15 ± 9 < 0.001
Ex smoker 22 ± 15 12 ± 9 < 0.001
Parental Smoking
Both smokers 25.5 (356) 3
One smoker 37.3 (521)
Both non smokers 37.2 (519)
   Father  
   Smoker Ex/Non smoker p-value
Mother Smoker 25.5 (356) 4 11.0 (153) < 0.001
  Ex/Non smoker 26.4 (368) 37.2 (519)  
  1. 1. The values are given as % (N = individuals) [Chi-square test (χ2)]
  2. 2. The values are given as: mean ± standard deviation [Student t test – equal variances not assumed]
  3. 3. The values are given as % (N = families)
  4. 4. The values are given as total % (N = families) [Chi-square test (χ2)]