Table 3 Multivariable regression model for change in total monthly combustible cigarette consumption from baseline to follow-up stratified by age—weighted estimates (current smokers at baseline and follow-up, n = 362).

From: E-cigarettes and smoking cessation among adolescent smokers

 

All students

Junior high

High school

Coef.

95% CI

Coef.

95% CI

Coef.

95% CI

Unadjusted model

Current use of E-cigarettes at baseline

6.30

− 30.95 to 43.55

38.36

− 39.83 to 116.55

− 0.51

− 42.09 to 41.08

Adjusted model

Current use of E-cigarettes at baseline

0.62

− 36.85 to 38.09

66.42

− 2.76 to 135.60

− 13.46

− 51.49 to 24.56

  1. Significant values are in italics.
  2. CES-D Scale: Center for Epidemiologic Studies Depression Scale.
  3. ***p value < 0.001; **p value < 0.01; *p value < 0.05. The multivariable regression model was adjusted for ever use of other tobacco products, depression (CES-D), peer support, father’s education, mother’s ethnicity, parents’ employment status, sex, age, and family living arrangement.
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