TABLE 2.
CT Colonography Reporting and Data System Colorectal and Extracolonic Classification Distribution by Age and Sex
| Classification Score | All Patients (50–79 Years Old) | Patients 50–64 Years Old | Patients 65–79 Years Old | ||||||
|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||
| Overall (n = 6769) | Men (n = 3110) | Women (n = 3659) | Overall (n = 6043) | Men (n = 2741) | Women (n = 3302) | Overall (n = 726) | Men (n = 369) | Women (n = 357) | |
| Colorectal | |||||||||
| C0 | 49 (0.7) | 22 (0.7) | 27 (0.7) | 41 (0.7) | 17 (0.6) | 24 (0.7) | 8 (1.1) | 5 (1.4) | 3 (0.8) |
| C1 | 5751 (85.0) | 2543 (81.8) | 3208 (87.7) | 5191 (85.9) | 2274 (83.0) | 2917 (88.3) | 560 (77.1) | 269 (72.9) | 291 (81.5) |
| C2 | 579 (8.6) | 323 (10.4) | 256 (7.0) | 508 (8.4) | 279 (10.2) | 229 (6.9) | 71 (9.8) | 44 (11.9) | 27 (7.6) |
| C3 | 351 (5.2) | 209 (6.7) | 142 (3.9) | 278 (4.6) | 163 (5.9) | 115 (3.5) | 73 (10.1) | 46 (12.5) | 27 (7.6) |
| C4 | 39 (0.6) | 13 (0.4) | 26 (0.7) | 25 (0.4) | 8 (0.3) | 17 (0.5) | 14 (1.9) | 5 (1.4) | 9 (2.5) |
| Extracolonic | |||||||||
| E1 | 2416 (35.7) | 1051 (33.8) | 1365 (37.3) | 2266 (37.5) | 988 (36.0) | 1278 (38.7) | 150 (20.7) | 63 (17.1) | 87 (24.4) |
| E2 | 3445 (50.9) | 1689 (54.3) | 1756 (48.0) | 3003 (49.7) | 1455 (53.1) | 1548 (46.9) | 442 (60.9) | 234 (63.4) | 208 (58.3) |
| E3 | 764 (11.3) | 305 (9.8) | 459 (12.5) | 660 (10.9) | 252 (9.2) | 408 (12.4) | 104 (14.3) | 53 (14.4) | 51 (14.3) |
| E4 | 144 (2.1) | 65 (2.1) | 79 (2.2) | 114 (1.9) | 46 (1.7) | 68 (2.1) | 30 (4.1) | 19 (5.1) | 11 (3.1) |
Note—Data are no. (%) of subjects.