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Table 6 Final logistic regression models predicting target child's exposure to environmental tobacco smoke (ETS) in a room or automobile

From: Prevalence and predictors of home and automobile smoking bans and child environmental tobacco smoke exposure: a cross-sectional study of U.S.- and Mexico-born Hispanic women with young children

Predictor Child Room ETS Exposure Child Automobile ETS Exposure
  Adjusted OR (95% CI) Adjusted OR (95% CI)
Mother's country of birth   
   Mexico 1.00 1.00
   United States 3.24 (1.37 – 7.69) 1.71 (0.64 – 4.56)
Mother's current smoking status   
   Nonsmoker 1.00 1.00
   Smoker 3.31 (1.47 – 7.46) 2.97 (1.16 – 7.62)
Other adult smoker(s) in home   
   No 1.00 1.00
   Yes 2.18 (0.92 – 5.14) 1.92 (0.77 – 4.75)
Complete home smoking ban   
   No 1.00 ... *
   Yes 0.10 (0.04 – 0.27)  
Complete automobile smoking ban   
   No ... * 1.00
   Yes   0.14 (0.05 – 0.36)
  1. OR = odds ratio; CI = confidence interval.
  2. *Variable not included in final model because it did not retain statistical significance.