Table 3.
Logistic regression results of sociodemographic factors associated with smoking (N = 4,414)
| Category | Odds Ratio | 95% C.I |
| Region | ||
| Subei | 1.00 | -- |
| Jinnan | 1.37** | 1.12–1.62 |
| Jinbei | 1.94** | 1.54–2.44 |
| Guiyang | 1.39** | 1.13–1.70 |
| Age (years) | ||
| < 25 | 1.00 | -- |
| 25–34 | 1.29* | 1.08–1.14 |
| 35–44 | 1.09 | 0.92–1.29 |
| 45- | 1.30* | 1.08–1.58 |
| Education | ||
| Elementary school | 1.00 | -- |
| Middle school | 0.94 | 0.83–1.07 |
| High school | 0.85 | 0.70–1.03 |
| College or higher | 0.51** | 0.37–0.69 |
| Martial status | ||
| Never been married | 1.00 | -- |
| Married | 2.43** | 1.99–2.98 |
| Divorced/widowed | 1.63** | 1.11–2.38 |
| Race | ||
| Han | 1.00 | -- |
| Minority | 1.84** | 1.29–2.62 |
| Occupation | ||
| Farmers | 1.00 | -- |
| Floating jobs# | 0.90 | 0.79–1.03 |
| Non-farm related jobs | 0.97 | 0.82–1.14 |
| Others (no work capacity) | 0.71* | 0.57–0.89 |
| Average annual income per person (¥) | ||
| < 1000 | 1.00 | -- |
| 1000–1999 | 1.33** | 1.14–1.54 |
| 2000–2999 | 1.44** | 1.21–1.72 |
| 3000–3999 | 2.07** | 1.63–2.63 |
| >= 4000 | 1.66** | 1.23–2.08 |
#Jobs that required going from place to place.
*P < .05
**P < .001