Table 4.
Estimated effects (odds ratio and 95% CI) of DARC status (negative vs. positive) and selected covariates on the incidence of prostate cancer among Jamaican men, by choice of covariates in the model (models 1–7): results of conditional logistic regression analyses
| Covariate | Model | ||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| Lacks DARC | 1.1 (0.52, 2.5) | 1.1 (0.50, 2.4) | 1.2 (0.44, 3.1) | 1.1 (0.42, 3.1) | 1.1 (0.41, 3.1) | 1.1 (0.41, 3.1) | 1.2 (0.32, 4.2) |
| Family history of prostate cancer | 11 (2.5, 45) | 10 (2.4, 44) | 13 (2.4, 67) | 10 (2.0, 52) | 10 (1.9, 52) | 10 (2.0, 55) | 9.7 (1.6, 59) |
| History of sexually transmitted infection | 0.71 (0.32, 1.6) | 1.2 (0.46, 3.1) | 1.2 (0.46, 3.1) | 1.1 (0.42, 3.0) | 1.1 (0.41, 3.0) | 1.4 (0.43, 4.6) | |
| Enlarged prostate | 12 (3.0, 48) | 12 (2.8, 50) | 12 (2.8, 49) | 11 (2.7, 48) | 12 (2.4, 60) | ||
| Ever smoked | 0.57 (0.20, 1.6) | 0.58 (0.20, 1.6) | 0.61 (0.21, 1.8) | 0.58 (0.17, 2.1) | |||
| Eats meat | 1.5 (0.24, 9.0) | 1.5 (0.24, 9.2) | 1.4 (0.22, 8.5) | ||||
| BMI ≥30 vs.<30 | 1.4 (0.30, 6.4) | 1.6 (0.26, 9.9) | |||||
| Less educationa | 3.8 (0.61, 23) | ||||||
All odds-ratio estimates are adjusted for age (the matching variable) and other covariates in the model
a
Primary-school education vs. secondary-school or more education