Table 3.
Relative risks for each variable and attributable risk for the final multivariable epidemiologic risk model for African-Americans
| Risk factor | RR* (95% CI) |
|---|---|
| Composite variable for smoking and COPD† | |
| NS or pack-years<13.3 and no COPD | 1.00 |
| 13.3≤pack-years<26.4 and no COPD and years since cessation<23 | 2.56 (1.69−3.90) |
| Pack-years≥26.4 and no COPD and years since cessation≥3 and age at cessation<56 | 2.69 (1.47−4.92) |
| Pack-years≥26.4 and no COPD and years since cessation<3 and age at cessation<56 | 6.06 (3.66−10.06) |
| Pack-years≥26.4 and no COPD and age at cessation≥56 | 10.1 (6.24−16.22) |
| Pack-years<26.4 and COPD | 20.00 (5.62−71.11) |
| 13.3≤pack-years<26.4 and no COPD and years since cessation≥23 | 21.38 (2.52−181.24) |
| Pack-years≥26.4 and COPD | 34.29 (12.94−90.91) |
| Asbestos | |
| Unexposed | 1.00 |
| Exposed | 1.46 (1.04−2.04) |
| Dusts | |
| Unexposed | 1.00 |
| Exposed | 1.38 (0.97−1.96) |
| Hay fever | |
| No diagnosis | 1.00 |
| Diagnosis | 0.66 (0.43−1.01) |
| Attributable risk | |
| Males | 0.79 |
| Females | 0.59 |