Results of multivariate logistic regression examining factors associated with any intention to quit smoking
Percentage intending to quit | OR | 95% CI | |
City | |||
Beijing | 29.1 | Reference | |
Shenyang | 32.4 | 1.13 | 0.61 to 2.09 |
Shanghai | 16.5 | 0.50 | 0.27 to 0.92 |
Changsha | 25.2 | 0.99 | 0.58 to 1.69 |
Guangzhou | 14.8 | 0.54 | 0.31 to 0.96 |
Yinchuan | 28.3 | 0.88 | 0.50 to 1.55 |
Gender | |||
Male | 24.3 | Reference | |
Female | 25.3 | 0.92 | 0.53 to 1.61 |
Age in years | |||
18–34 | 25.3 | Reference | |
35–44 | 25.4 | 1.13 | 0.79 to 1.61 |
45–54 | 24.5 | 1.19 | 0.80 to 1.76 |
55 or older | 23.2 | 1.21 | 0.83 to 1.77 |
Ethnic group | |||
Han | 26.9 | Reference | |
Others | 24.3 | 0.92 | 0.59 to 1.43 |
Highest education | |||
Low | 19.1 | Reference | |
Medium | 24.7 | 1.16 | 0.85 to 1.58 |
High | 27.3 | 1.10 | 0.72 to 1.67 |
Household income per month | |||
Low | 22.8 | Reference | |
Medium | 25.6 | 1.13 | 0.85 to 1.51 |
High | 25.5 | 1.27 | 0.91 to 1.77 |
Don't know/cannot say | 16.6 | 0.85 | 0.52 to 1.39 |
Number of cigarettes smoked per day | |||
1–10 | 30.5 | Reference | |
11–20 | 22.6 | 0.71 | 0.60 to 0.84 |
21–30 | 15.7 | 0.50 | 0.36 to 0.70 |
31 or more | 15.6 | 0.49 | 0.33 to 0.72 |
Think about the money spent on smoking in the last month | |||
Never | 19.6 | Reference | |
Occasionally | 29.6 | 1.61 | 1.26 to 2.05 |
Often | 42.2 | 2.78 | 2.17 to 3.57 |
Don't know/cannot say | 12.4 | 0.85 | 0.35 to 2.02 |
Buy less expensive cigarettes at the last purchase | |||
No | 26.2 | Reference | |
Yes | 21.0 | 0.75 | 0.58 to 0.96 |
Index of knowledge about the adverse health effects of smoking | |||
0–1 | 11.8 | Reference | |
2–3 | 17.1 | 1.49 | 1.09 to 2.04 |
4–5 | 27.5 | 2.56 | 1.95 to 3.35 |
6–8 | 37.8 | 3.69 | 2.59 to 5.23 |