TABLE 4

Association Between E-Cigarette Use at Initial Assessment in 2014 and Subsequent Cigarette Use at Follow-up in 2015, Restricted to Never Users of Any Combustible Tobacco Product

Tobacco Product Use (2015)E-Cigarette Use at Initial Assessment (2014)
NoYes
n (%)n (%)OR (95% CI)a
Any combustible product
 No109 (87.9)26 (49.1)Ref
 Yes23 (17.4)27 (50.9)4.98 (2.37–10.4)**
Cigarette
 No118 (89.4)37 (67.3)Ref
 Yes14 (10.6)18 (32.7)4.29 (1.84–10.0)**
Hookah
 No116 (87.9)40 (74.1)Ref
 Yes16 (12.1)14 (25.9)2.86 (1.21–6.78)*
Cigars
 No122 (92.4)39 (72.2)Ref
 Yes10 (7.6)15 (27.8)4.39 (1.72, 11.2)**
Pipes
 No129 (98.5)49 (89.1)Ref
 Yes2 (1.5)6 (10.9)8.21 (1.20–56.2)*
  • Total varies due to missing values. Ref, referent.

  • a Adjusted for gender, ethnicity, grade, and highest parental education.

  • ** P < .005.

  • * P < .05.