Table 1.
Baseline characteristics in study of role of quality measurement in inappropriate use of screening for colorectal cancer. Figures are numbers (percentage) of patients (n=399 067)
| Characteristic | Participants | Age 50-69 | Age 70-75 | Age >75 |
|---|---|---|---|---|
| Age (years): | ||||
| 50-69 | 247 900 (62) | 247 900 | — | — |
| 70-75 | 53 351 (13) | — | 53 351 | — |
| >75 | 97 816 (25) | — | — | 97 816 |
| Men | 385 781 (97) | 236 832 (96) | 52 499 (98) | 96 450 (99) |
| Women | 13 286 (3) | 11 068 (4) | 852 (2) | 1366 (1) |
| Charlson comorbidity index: | ||||
| 0 | 127 968 (32) | 89 259 (36) | 14 621 (27) | 24 088 (25) |
| 1-3 | 213 814 (54) | 129 210 (52) | 29 916 (56) | 54 688 (56) |
| ≥4 | 57 285 (14) | 29 431 (12) | 8814 (17) | 19 040 (19) |
| Primary care visits in 2010: | ||||
| 1 | 49 191 (12) | 28 086 (11) | 6968 (13) | 14 137 (14) |
| 2 | 88 099 (22) | 51 686 (21) | 12 561 (24) | 23 852 (24) |
| 3 | 75 115 (19) | 46 694 (19) | 10 351 (19) | 18 070 (18) |
| ≥4 | 186 662 (47) | 121 434 (49) | 23 471 (44) | 41 757 (43) |
| Screening utilization*: | ||||
| Colonoscopy, sigmoidoscopy, or FOBT | 151 850 (38) | 113 835 (46) | 22 757 (43) | 15 258 (16) |
| Colonoscopy | 37 237 (9) | 31 430 (13) | 3549 (7) | 2258 (2) |
| Sigmoidoscopy | 2008 (1) | 1614 (1) | 201 (0.5) | 193 (0.2) |
| FOBT | 129 103 (32) | 94 725 (38) | 20 806 (39) | 13 572 (14) |
FOBT=fecal occult blood test.
*Categories are not mutually exclusive.