TABLE 1.
Sample Characteristics for Colonoscopy Screening
| Characteristic | Intervention Practice | Control Practice #1 | Control Practice #2 | |||
|---|---|---|---|---|---|---|
| Pre Year | Post Year | Pre Year | Post Year | Pre Year | Post Year | |
| Patients, n | 1257 | 967 | 1442 | 1311 | 1260 | 1323 |
| Clinic visits, n | 2539 | 1716 | 3016 | 2661 | 2300 | 2314 |
| Age, mean years (SD) | 58.8 (6.9) | 58.8 (7.0) | 59.2 (7.0) | 59.9 (6.9) | 60.0 (7.0) | 60.2 (7.0) |
| Female gender, (%) | 63.1% | 63.4% | 63.3% | 62.5% | 55.2% | 53.1% |
| Race/ethnicity, % | ||||||
| Non-hispanic white | 21.6% | 24.3% | 48.8% | 48.3% | 49.3% | 48.8% |
| Non-hispanic black | 71.8% | 69.3% | 42.2% | 42.1% | 40.6% | 41.3% |
| Hispanic | 1.0% | 1.2% | 1.2% | 1.3% | 1.1% | 1.6% |
| Other | 5.6% | 5.2% | 7.8% | 8.3% | 9.0% | 8.2% |
| Insurance type, % | ||||||
| Private | 50.1% | 47.2% | 53.7% | 58.0% | 48.9% | 45.5% |
| Medicare | 5.6% | 28.6% | 5.4% | 26..9% | 8.9% | 33.0% |
| Medicaid | 13.4% | 21.5% | 8.6% | 12.9% | 9.0% | 19.0% |
| Other/self-insured | 30.8% | 3.1% | 32.3% | 2.1% | 33.2% | 2.5% |
| Charlson Score, median (IQR) | 0 (0,1) | 0 (0,1) | 0 (0,1) | 0 (0,1) | 0 (0,1) | 0 (0,1) |
| Clinic visit type, % | ||||||
| New patient | 16.6% | 21.1% | 16.1% | 22.3% | 42.8% | 54.3% |
| Return patient | 62.8% | 58.1% | 59.2% | 49.8% | 54.5% | 39.3% |
| Reassign patient provider | 8.0% | 6.2% | 3.5% | 4.7% | 1.4% | 3.5% |
| Other visit type | 12.6% | 14.6% | 21.2% | 23.1% | 1.3% | 4.9% |
| Clinic visit PCP status, % | ||||||
| Yes with PCP | 66.6% | 74.9% | 69.3% | 73.8% | 41.4% | 41.4% |
| No | 27.6% | 24.4% | 26.6% | 25.7% | 33.2% | 57.1% |
| PCP not assigned | 5.8% | 0.7% | 4.2% | 0.5% | 25.4% | 1.5% |
*
Data on Medicare or Medicaid insurance were missing for some patients during the pre-intervention year because the method by which the health system captured this data changed. These patients were coded as having other insurance