Multiple logistic regression analysis of current non-smoking status (n = 5250)
Characteristic | Variable | Adjusted odds ratio | 95% Confidence interval |
---|---|---|---|
Site | Houston | 1.0 | Referent |
Santa Clara | 1.2 | 1.0, 1.4 | |
Time | Pretest | 1.0 | Referent |
Post-test | 0.9 | 0.8, 1.1 | |
Intervention term (site × time) | Pre-Santa Clara/pre-post | 1.0 | Referent |
Houston | |||
Post-Santa Clara | 1.2 | 0.9, 1.5 | |
Age (years) | 18–24 | 2.4 | 1.9, 3.1 |
25–44 | 1.0 | Referent | |
45–64 | 1.8 | 1.5, 2.1 | |
≥65 | 3.4 | 2.4, 4.7 | |
Education | < College graduate | 1.0 | Referent |
≤College graduate | 1.5 | 1.3, 1.8 | |
English language proficiency | None/fair/poor | 1.0 | Referent |
Good | 1.3 | 1.1, 1.5 | |
Fluent | 2.0 | 1.5, 2.6 | |
Immigration | Before 1977 | 1.8 | 1.5, 2.2 |
1978–84 | 1.2 | 1.0, 1.4 | |
After 1984 | 1.0 | Referent | |
Employment | Employment/student/ | 1.0 | Referent |
disabled/retired | |||
Unemployment | 0.9 | 0.7, 1.1 | |
Income | Below poverty level | 1.0 | Referent |
Above poverty level | 1.0 | 0.8, 1.2 |