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Table 3 Unadjusted and Adjusted Odds Ratios for the Association Between E-Cigarette Use and Smoking Outcomes

From: E-cigarettes and smoking cessation: a prospective study of a national sample of pregnant smokers

Outcome variables E-cigarette & cigarette dual user (n = 36) Cigarette user (n = 392) Model 1 Model 2 Model 3
OR (95% CI) p-value AOR (95% CI) p-value AOR (95% CI) p-value
Not smoked in past 7 daysa, n(%) 7 (19.44) 101 (25.77) 0.70 (0.30, 1.64) 0.41 0.64 (0.27, 1.53) 0.31 0.79 (0.33, 1.92) 0.61
Quit for more than 1 day, n(%) 25 (69.44) 265 (67.60) 1.09 (0.52, 2.28) 0.82 1.04 (0.49, 2.20) 0.92 1.20 (0.56, 2.55) 0.64
Difference in CPD, M(SD) −3.39 (5.54) −3.36 (4.97) −0.029 (−1.75, 1.69) 0.97 0.04 (−1.67, 1.76) 0.96 0.18 (−1.55, 1.91) 0.84
  1. Note: Model 1 unadjusted, Model 2 adjusted for intervention allocation, Model 3 adjusted for intervention allocation and race/ethnicity; OR odds ratio, AOR adjusted odds ratio, CPD cigarettes per day
  2. a3 observations missing