TABLE 2.
Proportional hazards model of surveillance receipt
| Independent variable | Univariable unadjusted model | Multivariable adjusted model | ||
|---|---|---|---|---|
| HR of surveillance receipt (95% CI) | p value | HR of surveillance receipt (95% CI) | p value | |
| Baseline gastroenterologist a | 1.05 (0.94–1.17) | 0.376 | 1.11 (0.99–1.24) | 0.068 |
| HBV | ||||
| Untreated | Reference | Reference | ||
| Treated | 1.76 (1.54–2.00) | <0.001 | 1.75 (1.53–2.01) | <0.001 |
| Age group, years | ||||
| 65+ | Reference | Reference | ||
| 51–64 | 1.33 (1.2–1.48) | <0.001 | 1.34 (1.2–1.49) | <0.001 |
| 40–50 | 1.79 (1.59–2.01) | <0.001 | 1.65 (1.45–1.89) | <0.001 |
| Sex | ||||
| Female | Reference | Reference | ||
| Male | 1.13 (1.03–1.24) | 0.009 | 1.03 (0.93–1.14) | 0.550 |
| Geographic region | ||||
| South | Reference | Reference | ||
| Northeast | 1.2 (1.07–1.35) | 0.002 | 1.27 (1.13–1.43) | <0.001 |
| Midwest | 0.94 (0.82–1.07) | 0.36 | 0.96 (0.84–1.09) | 0.498 |
| West or Other | 1.31 (1.16–1.48) | <0.001 | 1.17 (1.03–1.32) | 0.013 |
| High‐deductible health plan | ||||
| No or missing info | Reference | Reference | ||
| Yes | 1.27 (1.14–1.43) | <0.001 | 1.02 (0.9–1.15) | 0.799 |
| Baseline Charlson comorbidity score category | ||||
| 0 | Reference | Reference | ||
| 1–2 | 0.74 (0.66–0.82) | <0.001 | 0.78 (0.69–0.87) | <0.001 |
| 3+ | 0.52 (0.46–0.58) | <0.001 | 0.55 (0.48–0.63) | <0.001 |
| Baseline viral infection b | 0.76 (0.69–0.84) | <0.001 | 0.87 (0.78–0.97) | 0.014 |
| Baseline liver disease b | 1.24 (1.1–1.41) | 0.001 | 1.46 (1.28–1.66) | <0.001 |
Abbreviations: CI, confidence interval; HR, hazard ratio.
a
Gastroenterologist visit during the baseline period.
b
Identified using Clinical Classifications Software from the Agency for Healthcare Research and Quality.[ 27 ]