Table 4.
Adjusted odds ratio and 95% CI of SES on COPD prevalence according to smoking status*
| Never smoker | Smoker | |||
|---|---|---|---|---|
| COPD (%) | Adjusted OR(95%CI) | COPD (%) | Adjusted OR(95%CI) | |
| Educational level | ||||
| ≥ 12 years | 101 (1.3) | 1 | 80 (2.2) | 1 |
| 9-11 years | 142 (1.4) | 1.06 (0.81-1.37) | 191 (3.1) | 1.36 (1.04-1.78) |
| < 9 years | 509 (3.5) | 1.77 (1.40-2.25) | 392 (5.8) | 1.64 (1.26-2.12) |
| P for trend | < 0.001 | < 0.001 | ||
| Household Income | ||||
| High | 162 (1.8) | 1 | 132 (3.2) | 1 |
| Middle | 213 (2.0) | 1.08 (0.87-1.34) | 186 (3.3) | 0.88 (0.69-1.11) |
| Low | 305 (3.3) | 1.31 (1.05-1.62) | 284 (5.6) | 1.17 (0.93-1.48) |
| P for trend | 0.011 | 0.071 | ||
*Adjusted for age, sex, passive smoking exposure and geographic regions