| Characteristic | Gastroenterologist neighbourhood n = 270 | Mixed neighbourhood n = 627 | Surgeon neighbourhood n = 217 | Total n = 1114 | p value |
|---|---|---|---|---|---|
| Total no. of colonoscopy procedures | 148 253 | 350 970 | 158 890 | 658 113 | |
| No. (%) of colonoscopy procedures performed by surgeons | 33 643 (22.7) | 187 604 (53.5) | 131 918 (83.0) | 353 165 (53.7) | < 0.001 |
| Rural | 2 (0.7) | 52 (8.3) | 75 (34.6) | 129 (11.6) | < 0.001 |
| Socioeconomic quartile; no. (%) of neighbourhoods | |||||
| 1 | 58 (21.5) | 153 (24.4) | 64 (24.5) | 275 (24.7) | < 0.001 |
| 2 | 42 (15.6) | 153 (24.4) | 84 (38.7) | 279 (25.0) | |
| 3 | 61 (22.6) | 175 (27.9) | 45 (20.7) | 281 (25.2) | |
| 4 | 109 (40.4) | 146 (23.3) | 24 (11.1) | 279 (25.0) | |
| Distance to health care facility, mean ± SD; km | 17.74 ± 38.2 | 36.75 ± 122.5 | 59.44 ± 152.0 | 36.56 ± 116.0 | < 0.001 |
Note: SD = standard deviation.