Table 2.
Risk Factors Associated With the IMPROVE RAM Score
| VTE Event (n=135) | Non‐VTE Event (n=404) | OR (95% CI) | P Value | |
|---|---|---|---|---|
| Aged >60 years | 108 (80.0%) | 268 (66.34%) | 2.03 (1.27 to 3.25) | 0.0028 |
| Prior cancer | 76 (56.3%) | 116 (28.71%) | 3.20 (2.14 to 4.78) | <0.0001 |
| Prior VTE | 26 (19.26%) | 28 (6.93%) | 3.20 (1.80 to 5.69) | <0.0001 |
| ICU/CCU stay | 19 (14.07%) | 41 (10.15%) | 1.45 (0.81 to 2.60) | 0.2093 |
| Lower limb paralysis | 1 (0.74%) | 8 (1.98%) | 0.37 (0.05 to 2.98) | 0.4618 |
| Immobility | 42 (31.11%) | 117 (28.96%) | 1.11 (0.73 to 1.69) | 0.6352 |
| Known thrombophilic state | 1 (0.74%) | 1 (0.25%) | 3.01 (0.19 to 48.41) | 0.4385 |
ICU/CCU indicates intensive care unit or coronary care unit; IMPROVE, International Medical Prevention Registry on Venous Thromboembolism; OR, odds ratio; RAM, risk assessment model; VTE, venous thromboembolism.