Table 3.
Moderation effects of active smoking and overweight/obesity status
| ETS ≤4 days/week | ETS 5–7 days/week | ||
| Adjusted mean (SE) | Adjusted mean (SE) | p value | |
| Moderation effect of active smoking statusa | |||
| Waist–hip ratio | p for interaction = .02 | ||
| Never-smokers and ex-smokers | 0.8 (0.01) | 0.8 (0.01) | <.01 |
| Current smokers | 0.9 (0.01) | 0.9 (0.01) | .6 |
| TC | p for interaction = .03 | ||
| Never-smokers and ex-smokers | 1.1 (0.2) | 1.3 (0.2) | .09 |
| Current smokers | 2.8 (0.9) | 1.7 (0.7) | .3 |
| Moderation effect of overweight statusb | |||
| Waist circumference | p for interaction = .03 | ||
| Not overweight (BMI <25 Kg/m2) | 74.6 (0.9) | 74.5 (0.9) | .9 |
| Overweight/obesity (BMI ≥25 Kg/m2) | 85.6 (1.1) | 89.1 (0.8) | .02 |
| Waist–hip ratio | p for interaction = .01 | ||
| Not overweight (BMI <25 Kg/m2) | 0.8 (0.01) | 0.8 (0.01) | .4 |
| Overweight/obesity (BMI ≥25 Kg/m2) | 0.9 (0.01) | 0.9 (0.01) | .02 |
| Fasting insulin | p for interaction = .04 | ||
| Not overweight (BMI <25 Kg/m2) | 4.5 (0.4) | 4.9 (0.4) | .4 |
| Overweight/obesity (BMI ≥25 Kg/m2) | 5.9 (0.8) | 8.2 (0.6) | .03 |
Note. aCovariates: age, gender, education, income, and alcohol drinking status. BMI = body mass index; ETS = environmental tobacco smoke; TC = total cholesterol.
b
Covariates: age, gender, education, income, alcohol drinking, and active smoking status.