Table 3.
Associations between patient characteristics and time to colonoscopy follow-up after positive fecal occult blood test in PROSPR healthcare systems, 2011–2012 (47,827)a
| Characteristic at positive fecal occult blood test | Hazard ratio (95% confidence interval) |
|---|---|
| Age (years) | |
| 50–54 | Reference |
| 55–59 | 1.02 (0.98–1.05) |
| 60–64 | 0.98 (0.95–1.02) |
| 65–69 | 0.98 (0.95–1.02) |
| 70–75 | 0.90 (0.87–0.94) |
| 76–84 | 0.65 (0.61–0.69) |
| 85–89 | 0.34 (0.29–0.39) |
| Gender | |
| Female | Reference |
| Male | 1.03 (1.00–1.05) |
| Charlson comorbidity score | |
| 0 | Reference |
| 1 | 0.93 (0.91–0.96) |
| 2 | 0.87 (0.84–0.90) |
| ≥3 | 0.70 (0.67–0.72) |
| Body mass index (kg/m2) | |
| <25 | Reference |
| 25 to <30 | 1.06 (1.03–1.09) |
| 30 to <35 | 1.07 (1.04–1.10) |
| ≥35 | 1.01 (0.97–1.04) |
| Race/ethnicity | |
| White, non-Hispanic | Reference |
| Hispanic (any race) | 1.01 (0.98–1.04) |
| Asian/Pacific Islander | 0.97 (0.94–1.00) |
| Black | 0.98 (0.94–1.02) |
| Other | 0.96 (0.84–1.09) |
| Prior colorectal cancer screening | |
| No | Reference |
| Yes | 1.30 (1.26–1.34) |
| Healthcare system | |
| Kaiser Permanente Southern California | Reference |
| Group Health | 0.64 (0.61–0.68) |
| Kaiser Permanente Northern California | 0.99 (0.97–1.01) |
| Parkland Health and Hospital System – University of Texas Southwestern Medical Center | 0.24 (0.18–0.32) |
a
Multivariate regression limited to persons with complete covariate information
PROSPR: Population-Based Research Optimizing Screening through Personalized Regimens