Model 1 | Model 2 | |||||
---|---|---|---|---|---|---|
Persistent light smokers | Late escalators | Early established smokers | Persistent light smokers | Late escalators | Early established smokers | |
OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | |
Age (w2) | 0.62 (0.31–1.26) | 1.15 (0.63–2.12) | 0.80 (0.47–1.37) | 0.62 (0.31–1.25) | 1.16 (0.62–2.17) | 0.82 (0.49–1.38) |
Gender (w2) | ||||||
Girls | 1 | 1 | 1 | 1 | 1 | 1 |
Boys | 3.70 (2.00–6.84)* | 3.69 (2.34–5.80)* | 22.32 (12.05–41.34)* | 4.49 (2.31–8.73)* | 4.06 (2.54–6.48)* | 28.42 (14.67–55.08)* |
Family income (w2) | ||||||
T1 | 1 | 1 | 1 | 1 | 1 | 1 |
T2 | 1.05 (0.51–2.17) | 1.15 (0.65–2.04) | 0.87 (0.52–1.44) | 1.09 (0.53–2.24) | 1.18 (0.65–2.12) | 0.84 (0.50–1.40) |
T3 | 0.90 (0.42–1.96) | 1.04 (0.62–1.73) | 0.76 (0.44–1.31) | 0.90 (0.42–1.90) | 1.09 (0.65–1.83) | 0.72 (0.42–1.25) |
Type of high school (w4) | ||||||
General | 1 | 1 | 1 | 1 | 1 | 1 |
Vocational | 1.54 (0.53–4.45) | 0.95 (0.49–1.82) | 2.20 (1.31–3.69)* | 1.75 (0.75–4.08) | 0.95 (0.50–1.83) | 2.16 (1.28–3.66)* |
College status (w7) | ||||||
College students | 1 | 1 | 1 | 1 | 1 | 1 |
Non-college students | 0.95 (0.48–1.89) | 0.93 (0.55–1.56) | 1.12 (0.69–1.81) | 0.89 (0.46–1.71) | 0.94 (0.55–1.58) | 1.09 (0.67–1.78) |
Number of days not supervised by a guardian after school (w2) | ||||||
Almost none | 1 | 1 | 1 | 1 | 1 | 1 |
1–2 days | 0.51 (0.20–1.27) | 1.10 (0.56–2.17) | 1.00 (0.48–2.09) | 0.49 (0.20–1.23) | 1.04 (0.53–2.05) | 0.92 (0.43–1.95) |
> 3 days | 1.30 (0.71–2.37) | 1.12 (0.70–1.80) | 1.96 (1.23–3.13)* | 1.24 (0.65–2.35) | 1.14 (0.71–1.83) | 1.78 (1.10–2.88)* |
Smoking friends (w2) | ||||||
0 | 1 | 1 | 1 | 1 | 1 | 1 |
1 ≤ | 2.33 (1.24–4.38)* | 1.53 (0.93–2.52) | 3.01 (1.94–4.68)* | 2.30 (1.21–4.38)* | 1.52 (0.92–2.52) | 2.94 (1.89–4.58)* |
Drinking experience (w2) | ||||||
No | 1 | 1 | 1 | 1 | 1 | 1 |
Yes | 6.85 (2.65–17.71)* | 0.43 (0.08–2.17) | 9.99 (4.68–21.35)* | 6.65 (2.64–16.78)* | 0.44 (0.09–2.22) | 10.01 (4.60–21.80)* |
School adjustment (w2) | ||||||
T1 | 1 | 1 | 1 | 1 | 1 | 1 |
T2 | 0.60 (0.27–1.32) | 0.63 (0.33–1.18) | 0.42 (0.25–0.70)* | 0.61 (0.27–1.35) | 0.60 (0.32–1.14) | 0.42 (0.25–0.71)* |
T3 | 0.80 (0.37–1.72) | 0.99 (0.53–1.87) | 0.46 (0.27–0.78)* | 0.84 (0.39–1.84) | 0.99 (0.52–1.87) | 0.48 (0.27–0.83)* |
Experience of health-related education (w2) | ||||||
No | 1 | 1 | 1 | 1 | 1 | 1 |
Yes | 0.67 (0.32–1.41) | 1.16 (0.66–2.04) | 0.83 (0.49–1.42) | 0.67 (0.32–1.42) | 1.15 (0.66–2.01) | 0.80 (0.47–1.36) |
Mobile phone dependency | ||||||
T1 | 1 | 1 | 1 | 1 | 1 | 1 |
T2 | 1.33 (0.60–2.91) | 0.58 (0.33–1.02) | 1.78 (1.02–3.09)* | |||
T3 | 1.81 (0.84–3.91) | 1.01 (0.61–1.65) | 3.02 (1.75–5.21)* | |||
Mobile phone dependency trajectory | ||||||
Group1 | 1 | 1 | 1 | |||
Group2 | 2.03 (0.78–5.28) | 1.13 (0.65–1.95) | 3.18 (1.80–5.62)* | |||
Group3 | 4.04 (1.32–12.34)* | 1.61 (0.81–3.18) | 8.18 (4.04–16.56)* |