Table 3.
Multinomial logistic regression examining perceived stress, physical activity, and internet use by tobacco ever-use patterns.
| Tobacco Ever-Use Categories | Cigarette Only | E-Cigarette Only | HTP Only | Cigarette + E-Cigarette | Cigarette + HTP | E-Cigarette + HTP | Cigarette + E-Cigarette + HTP | |
|---|---|---|---|---|---|---|---|---|
| Variable | Category | |||||||
| Perceived stress | High | 1.11 [1.02, 1.22] | 1.05 [0.82, 1.35] | 0.79 [0.41, 1.52] | 1.17 [1.03, 1.33] | 0.93 [0.60, 1.45] | 0.74 [0.38, 1.46] | 1.34 [1.13, 1.58] |
| Moderate | 0.92 [0.84, 1.00] | 0.87 [0.70, 1.10] | 0.47 [0.24, 0.93] | 0.93 [0.82, 1.05] | 0.76 [0.48, 1.21] | 0.83 [0.44, 1.56] | 0.90 [0.76, 1.05] | |
| Low | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| Physical activity | ≥3 times/week | 1.06 [0.99, 1.13] | 1.33 [1.11, 1.60] | 3.68 [1.68, 5.60] | 1.15 [1.05, 1.25] | 1.52 [1.08, 2.14] | 1.66 [1.09, 2.51] | 1.36 [1.19, 1.55] |
| <3 times/week | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| Internet use | No | 1.55 [1.43, 1.67] | 1.90 [1.59, 2.26] | 2.95 [1.76, 4.97] | 1.77 [1.59, 1.97] | 2.43 [1.78, 3.34] | 3.41 [2.34, 4.97] | 2.66 [2.35, 3.01] |
| Yes | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
1 Note: Never-smoker as a reference category. Adjusted for gender, grade, residential area, academic performance, family economic status, and alcohol drinking.