Incidence of VTE according to diagnostic certainty
| Characteristic | Number of events | n | Person years | Incidence rate per 100 person years | 95% CI |
|---|---|---|---|---|---|
| Diagnostic criteria | |||||
| Definite VTE | 6 | 989 | 847.52 | 0.71 | 0.26 to 1.54 |
| Definite and probable VTE | 7 | 989 | 847.52 | 0.83 | 0.33 to 1.70 |
| Definite, probable and possible VTE | 21 | 989 | 847.52 | 2.48 | 1.53 to 3.79 |
VTE = venous thromboembolism.