Characteristics | Occasional smokers | Daily smokers | ||
---|---|---|---|---|
 | Crude OR(95%CI) | Adjusted OR(95%CI) | Crude OR(95%CI) | Adjusted OR(95%CI) |
Age(years) | Â | Â | Â | Â |
   ≤19 | 1.00 | 1.00 | 1.00 | 1.00 |
   20-29 | 0.64(0.31-1.33) | 0.68(0.34-1.35) | 1.01(0.65-1.57) | 1.30(0.76-2.24) |
   30-39 | 0.43(0.22-0.85) | 0.60(0.31-1.17) | 1.08(0.57-2.07) | 1.80(0.91-3.59) |
   40-49 | 0.85(0.47-1.56) | 1.14(0.60-2.18) | 2.50(1.30-4.80) | 3.10(1.48-6.50) |
   ≥50 | 0.35(0.12-0.97) | 0.23(0.08-0.64) | 3.51(1.42-8.70) | 2.92(0.92-9.20) |
Gender | Â | Â | Â | Â |
   Female | 1.00 | 1.00 | 1.00 | 1.00 |
   Male | 11.56(3.88-34.47) | 11.19(3.77-33.24) | 49.63(21.6-113.8) | 49.55(21.9-112.3) |
Monthly family income | Â | Â | Â | Â |
   ≤2000yuan | 1.00 | 1.00 | 1.00 | 1.00 |
   2001-3000 yuan | 1.29(0.81-2.07) | 1.51(0.90-2.53) | 1.29(0.88-1.89) | 1.21(0.73-2.00) |
   3001-5000 yuan | 0.52(0.22-1.18) | 0.79(0.30-2.08) | 1.30(0.69-2.46) | 1.78(0.89-3.57) |
   ≥5000yuan | 0.55(0.13-2.35) | 0.32(0.07-1.39) | 5.72(2.33-14.06) | 8.22(1.20-56.12) |
Education | Â | Â | Â | Â |
   Junior school or lower | 1.00 | 1.00 | 1.00 | 1.00 |
   High and technical school | 0.62(0.45-0.88) | 0.69(0.44-1.08) | 0.63(0.41-0.97) | 0.96(0.53-1.74) |
   College or higher | 0.54(0.34-0.87) | 0.41(0.24-0.71) | 0.63(0.43-0.93) | 0.61(0.37-1.03) |
Marital status | Â | Â | Â | Â |
   Single | 1.00 | 1.00 | 1.00 | 1.00 |
   Married/cohabiting | 0.73(0.47-1.13) | 0.75(0.44-1.27) | 1.19(0.75-1.91) | 1.19(0.59-2.39) |
   Others | 0.95(0.46-1.96) | 0.89(0.42-1.88) | 3.03(1.58-5.81) | 2.74(1.02-8.14) |
Interpersonal factors | Â | Â | Â | Â |
Father's smoking | Â | Â | Â | Â |
   No | 1.00 | 1.00 | 1.00 | 1.00 |
   Yes | 2.14(1.63-2.80) | 2.54(1.86-3.47) | 2.23(1.71-2.91) | 2.75(1.96-3.86) |
Mother's smoking | Â | Â | Â | Â |
   No | 1.00 | 1.00 | 1.00 | 1.00 |
   Yes | 2.64(1.89-3.69) | 3.54(2.25-5.57) | 2.19(1.60-2.99) | 2.02(1.39-2.94) |
More than one peers smoke | Â | Â | Â | Â |
   No | 1.00 | 1.00 | 1.00 | 1.00 |
   Yes | 1.07(0.74-1.55) | 1.28(0.86-1.89) | 1.27(0.85-1.88) | 1.26(0.69-2.29) |
Attitudinal factors of smoking | Â | Â | Â | Â |
An easy way to enjoy yourself | Â | Â | Â | Â |
   Disagree | 1.00 | 1.00 | 1.00 | 1.00 |
   Agree | 1.43(1.10-1.87) | 1.42(1.11-1.82) | 1.57(1.24-1.98) | 1.60(1.20-2.13) |