From: Validation of diagnosis codes to identify side of colon in an electronic health record registry
Baseline characteristics, n (%) | Sampled patients N = 200 | Parent cohort N = 9403 |
---|---|---|
Age at metastatic diagnosis (years), median (IQR) | 67.0 (57.0–76.0) | 66.0 (56.0–75.0) |
Age at metastatic diagnosis category, years | ||
18–34 | 2 (1.0) | 118 (1.3) |
35–49 | 25 (12.5) | 1003 (10.7) |
50–64 | 55 (27.5) | 3162 (33.6) |
≥ 65 | 118 (59.0) | 5120 (54.5) |
Sex | ||
Female | 100 (50.0) | 4385 (46.6) |
Male | 100 (50.0) | 5017 (53.4) |
Other/Unknown | 0 | 1 (0.01) |
Region | ||
Northeast | 53 (26.5) | 2630 (28.0) |
Midwest | 40 (20.0) | 1627 (17.3) |
South | 71 (35.5) | 3340 (35.5) |
West | 30 (15.0) | 1470 (15.6) |
Other/unknown | 6 (3.0) | 336 (3.6) |
Practice type | ||
Community | 188 (94.0) | 8923 (94.9) |
Academic | 12 (6.0) | 480 (5.1) |
Stage at diagnosis | ||
0–I | 5 (2.5) | 199 (2.1) |
II | 18 (9.0) | 993 (10.6) |
III | 55 (27.5) | 2247 (23.9) |
IV | 107 (53.5) | 5627 (59.8) |
Not documented | 15 (7.5) | 337 (3.6) |
Tumor site: Colon | 200 (100.0) | 9403 (100.0) |
Side of colon (from abstracted data) | ||
Left side | 99 (49.5) | NA |
Right side | 67 (33.5) | NA |
Transverse colon | 12 (6.0) | NA |
Unspecified | 22 (11.0) | NA |