Table 3.
Backward-selection Logistic Regression Model for Hepatitis B Testing
| Variable | Crude OR (95% CI) | Adjusted OR(95% CI) |
|---|---|---|
| City | ||
| Vancouver | 1.00 | 1.00 |
| Seattle | 0.73 (0.56, 0.94) | 0.9 (0.64, 1.27) |
| Age Group | ||
| >50 | 1.00 | 1.00 |
| 35–49 | 1.55 (1.17, 2.05) | 1.33 (0.96, 1.85) |
| <35 | 1.57 (1.08, 2.28) | 1.86 (1.20, 2.90) |
| Proportion of life lived in North America | ||
| >50 | 1.00 | 1.00 |
| 25–49 | 1.53 (1.13, 2.07) | 1.64 (1.14, 2.34) |
| <25 | 1.90 (1.36, 2.64) | 2.09 (1.40, 3.13) |
| Needs Interpreter | ||
| No | 1.00 | 1.00 |
| Yes | 0.51 (0.36, 0.73) | 0.45 (0.28, 0.7) |
| Received physical in last 12 months | ||
| No | 1.00 | 1.00 |
| Yes | 1.53 (1.18, 1.97) | 1.95 (1.41, 2.7) |
| Number of MD visits in last 12 months | ||
| ≥5 | 1.00 | 1.00 |
| 2–4 | 0.72 (0.52, 0.99) | 0.66 (0.45, 0.96) |
| 1 | 0.61 (0.42, 0.88) | 0.56 (0.36, 0.88) |
| 0 | 0.69 (0.46, 1.04) | 0.99 (0.58, 1.7) |
| Believes people with HBV can be infected for life | ||
| Incorrect | 1.00 | 1.00 |
| Correct | 1.99 (1.54, 2.59) | 1.64 (1.21, 2.23) |
| Believes HBV can cause liver cancer | ||
| Incorrect | 1.00 | 1.00 |
| Correct | 2.17 (1.6, 2.95) | 1.72 (1.2, 2.48) |
| Believes Chinese in Canada/US are more likely to be infected with HBV than whites | ||
| Incorrect | 1.00 | 1.00 |
| Correct | 1.67 (1.28, 2.18) | 1.34 (0.98, 1.83) |
| Doctor(s) recommended test | ||
| No | 1.00 | 1.00 |
| Yes | 10.2 (6.56, 15.9) | 9.04 (5.66, 14.4) |
| Employer asked for test | ||
| No | 1.00 | 1.00 |
| Yes | 5.53 (2.86, 10.67) | 4.52 (2.17, 9.4) |