| Sex: both sexes | Case | Control | Univariate | Multivariate | ||
| Variable | OR (95% CI) | p Value | OR* (95% CI) | p Value | ||
| Smoke | ||||||
| Non-smoker | 125 | 774 | 1.0 | 1.0 | ||
| Smoker | 130 | 501 | 1.8 (1.3 to 2.4) | <0.001 | 1.4 (1.0 to 2.0) | 0.043 |
| Alcohol use | ||||||
| Non-user | 164 | 936 | 1.0 | 1.0 | ||
| User | 91 | 339 | 1.7 (1.2 to 2.3) | 0.002 | 1.3 (0.9 to 1.8) | 0.165 |
| Household SLI | ||||||
| High | 56 | 548 | 1.0 | 1.0 | ||
| Medium | 97 | 424 | 2.4 (1.7 to 3.5) | <0.001 | 2.0 (1.4 to 2.9) | <0.001 |
| Low | 102 | 303 | 3.6 (2.5 to 5.3) | <0.001 | 3.0 (2.0 to 4.4) | <0.001 |
| Cooking fuel | ||||||
| Non-biomass | 24 | 252 | 1.0 | 1.0 | ||
| Biomass | 231 | 1023 | 2.9 (1.8 to 4.7) | <0.001 | 1.7 (1.0 to 2.9) | 0.040 |
*Adjusted ORs obtained by Cox regression stratifying by the pairwise matching variable.
SLI, Standard of Living Index.