Table 1.
Thrombosis occurrence in patients with colon cancer
| Characteristic | Colon Cancer Patients | Control Patients |
|---|---|---|
| Total, no. (%) | 39,862 (100%) | 10,321,311 (100%) |
| Sex | ||
| Male, no. (%) | 38,760 (85%) | 9,592,001 (93%) |
| Female, no. (%) | 5,845 (15%) | 716,979 (6.9%) |
| Age | ||
| <25, no. (%) | 121 (0.3%) | 1,571,211 (15%) |
| 26–50, no. (%) | 7,081 (18%) | 3,384,087 (33%) |
| 51–75, no. (%) | 27,928 (70%) | 4,690,275 (45%) |
| 76–100, no. (%) | 4,731 (12%) | 675,499 (6.5%) |
| >100, no. (%) | 1 (0.003%) | 424 (0.004%) |
| Follow-up time | ||
| Person-years | 354,603 | 99,782,242 |
| VTE events | ||
| Total | 3,550 | 216,391 |
| After diagnosis, no. (%) | 2,404 (68%) | Not applicable |
| Time to first VTE | ||
| Median (IQR) | 6 (4) | 6 (4) |
| VTE rate (/1,000 person years), 95th CI | 10.0 (9.7–10.3) | 2.2 (2.16–2.18) |
| Relative rate (age adjusted), 95th CI | 3.5 (3.4–3.6) | Reference |
CI, confidence interval; VTE, venous thromboembolism.