Findings from comparative studies of RAMs identified in the systematic reviews
| Comparative studies (no. of centers) . | RAM . | AUC . | Proportion of low-risk patients of VTE, % . | VTE incidence . | ||
|---|---|---|---|---|---|---|
| No. of patients in study . | Overall, at 3 mo, % . | In low-risk patients, % . | In high-risk patients, % . | |||
| Woller et al, 2011 (22 centers)32 | ||||||
| • DC, 143 975 • VC, 46 846 | Full logistic RAM | DC, 0.893 VC, 0.861 | Not assessed | DC, 3.7 VC, 4.5 | Not assessed | Not assessed |
| • DC, 143 975 • VC, 46 846 | 4 Element RAM | DC, 0.874 VC, 0.843 | Not assessed | DC, 3.7 VC, 4.5 | Not assessed | Not assessed |
| • DC, 143 975 • VC, 46 846 | Kucher RAM | DC, 0.781 VC, 0.756 | Not assessed | DC, 3.7 VC, 4.5 | Not assessed | Not assessed |
| Zhou et al, 201235 | ||||||
| Not described | Caprini RAM Kucher RAM Padua RAM | Not described | Caprini was found to classify more VTE patients into high or highest risk groups compared with the Kucher and Padua RAMs | |||
| Zhou et al, 201434 | ||||||
| Not described | Caprini RAM Padua RAM | Not described | 17.7 60.9 | Not described | Not described | Not described |
| Nendaz et al, 2014 (8 centers)26 | ||||||
| VC, 1478 | Geneva RAM | Negative likelihood ratio to identify low risk patients who do not require thromboprophylaxis, 0.28 | 35 | 2.3 | 0.6 | 3.25 |
| VC, 1478 | Padua RAM | Negative likelihood ratio to identify low risk patients who do not require thromboprophylaxis, 0.51 | 52 | 2.3 | 1.1 | 3.5 |
| Comparative studies (no. of centers) . | RAM . | AUC . | Proportion of low-risk patients of VTE, % . | VTE incidence . | ||
|---|---|---|---|---|---|---|
| No. of patients in study . | Overall, at 3 mo, % . | In low-risk patients, % . | In high-risk patients, % . | |||
| Woller et al, 2011 (22 centers)32 | ||||||
| • DC, 143 975 • VC, 46 846 | Full logistic RAM | DC, 0.893 VC, 0.861 | Not assessed | DC, 3.7 VC, 4.5 | Not assessed | Not assessed |
| • DC, 143 975 • VC, 46 846 | 4 Element RAM | DC, 0.874 VC, 0.843 | Not assessed | DC, 3.7 VC, 4.5 | Not assessed | Not assessed |
| • DC, 143 975 • VC, 46 846 | Kucher RAM | DC, 0.781 VC, 0.756 | Not assessed | DC, 3.7 VC, 4.5 | Not assessed | Not assessed |
| Zhou et al, 201235 | ||||||
| Not described | Caprini RAM Kucher RAM Padua RAM | Not described | Caprini was found to classify more VTE patients into high or highest risk groups compared with the Kucher and Padua RAMs | |||
| Zhou et al, 201434 | ||||||
| Not described | Caprini RAM Padua RAM | Not described | 17.7 60.9 | Not described | Not described | Not described |
| Nendaz et al, 2014 (8 centers)26 | ||||||
| VC, 1478 | Geneva RAM | Negative likelihood ratio to identify low risk patients who do not require thromboprophylaxis, 0.28 | 35 | 2.3 | 0.6 | 3.25 |
| VC, 1478 | Padua RAM | Negative likelihood ratio to identify low risk patients who do not require thromboprophylaxis, 0.51 | 52 | 2.3 | 1.1 | 3.5 |