Table 4 Risk factors of secondhand smoke (SHS) exposure among never-smoking adolescents (Weighted).
From: Secondhand smoke exposure among never-smoking adolescents in Wuhan, China
Characteristic | SHS exposure at home | SHS exposure in school | SHS exposure in public places | |||
|---|---|---|---|---|---|---|
OR (95% CI) | P | OR (95% CI) | P | OR (95% CI) | P | |
Gender | ||||||
Female | 1 (ref) | – | 1 (ref) | – | 1 (ref) | – |
Male | 0.93 (0.74–1.17) | 0.542 | 1.15 (0.97–1.38) | 0.116 | 0.92 (0.80–1.06) | 0.226 |
Grade | ||||||
9 | 1 (ref) | – | 1 (ref) | – | 1 (ref) | – |
8 | 1.39 (1.14–1.70) | 0.001 | 1.14 (0.82–1.58) | 0.452 | 1.24 (0.94–1.65) | 0.135 |
7 | 1.47 (1.10–1.96) | 0.009 | 1.23 (0.93–1.64) | 0.146 | 1.37 (0.95–1.96) | 0.088 |
Knowledge about the harm of SHS | ||||||
No | 1 (ref) | – | 1 (ref) | – | 1 (ref) | – |
Yes | 2.77 (1.38–5.56) | 0.004 | 0.71 (0.35–1.45) | 0.350 | 3.32 (1.61–6.85) | 0.001 |
Peer smoking | ||||||
No | 1 (ref) | – | 1 (ref) | – | 1 (ref) | – |
Yes | 1.47 (1.02–2.14) | 0.041 | 2.39 (1.66–3.44) | < 0.001 | 1.72 (1.22–2.44) | 0.002 |
Parent smoking | ||||||
No | 1 (ref) | – | 1 (ref) | – | 1 (ref) | – |
Yes | 14.00 (11.37–17.24) | < 0.001 | 1.54 (1.14–2.07) | 0.005 | 2.22 (1.80–2.74) | < 0.001 |
Exposed to antismoking media messages | ||||||
No | 1 (ref) | – | 1 (ref) | – | 1 (ref) | – |
Yes | 0.99 (0.78–1.25) | 0.919 | 0.81 (0.63–1.05) | 0.106 | 0.93 (0.73–1.18) | 0.562 |
Observing teachers smoking in school | ||||||
No | 1 (ref) | – | 1 (ref) | – | 1 (ref) | – |
Yes | 1.66 (1.32–2.08) | < 0.001 | 9.76 (7.13–13.36) | < 0.001 | 3.55 (2.77–4.55) | < 0.001 |
School type | ||||||
Public school | 1 (ref) | – | 1 (ref) | – | 1 (ref) | – |
Private school | 1.40 (1.17–1.68) | < 0.001 | 1.40 (1.00–1.96) | 0.053 | 2.02 (1.29–3.15) | 0.002 |
Disposable income (CNY) | ||||||
0 | 1 (ref) | – | 1 (ref) | – | 1 (ref) | – |
1–20 | 1.08 (0.86–1.35) | 0.515 | 1.03 (0.79–1.33) | 0.848 | 0.97 (0.74–1.27) | 0.813 |
21–50 | 1.27 (0.98–1.65) | 0.076 | 1.18 (0.86–1.63) | 0.300 | 1.37 (1.08–1.73) | 0.009 |
More than 50 | 1.64 (1.20–2.23) | 0.002 | 1.32 (0.95–1.84) | 0.097 | 1.96 (1.54–2.50) | < 0.001 |
Exposed to tobacco advertising and promotion | ||||||
No | 1 (ref) | – | 1 (ref) | – | 1 (ref) | – |
Yes | 1.10 (0.93–1.29) | 0.268 | 1.51 (1.21–1.89) | < 0.001 | 1.53 (1.28–1.83) | < 0.001 |
