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TABLE 4

Adjusted Multivariable Logistic Regression Revealing Interaction Between Smoking Intention and Ever Using E-Cigarettes at Wave 2 in Prediction of Ever Cigarette Smoking, n = 7644

Model 1Model 2
B (SE)PaOR95% CIB (SE)PaOR95% CI
Intention to smoke (reference: no intention) 0.76 (0.21) <.001 2.14 1.42–3.21 1.11 (0.22) <.001 3.03 1.97–4.68 
Ever using e-cigarettes (reference: never use) 0.95 (0.20) <.001 2.58 1.73–3.85 1.53 (0.24) <.001 4.62 2.87–7.42 
Smoking intention x e-cigarette use — — — — −1.08 (0.32) .001 0.34 0.18–0.64 
Model 1Model 2
B (SE)PaOR95% CIB (SE)PaOR95% CI
Intention to smoke (reference: no intention) 0.76 (0.21) <.001 2.14 1.42–3.21 1.11 (0.22) <.001 3.03 1.97–4.68 
Ever using e-cigarettes (reference: never use) 0.95 (0.20) <.001 2.58 1.73–3.85 1.53 (0.24) <.001 4.62 2.87–7.42 
Smoking intention x e-cigarette use — — — — −1.08 (0.32) .001 0.34 0.18–0.64 

All models control for sex, age, race and ethnicity, parent education, subjective norms toward smoking, PBC over smoking, other tobacco product use at wave 2, protobacco advertisement exposure, antitobacco advertisement exposure, peer smoking, perceived harm of conventional cigarette smoking, perceived addictiveness of conventional cigarette smoking, access to cigarettes in store, and parental monitoring. —, not applicable.

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