Table 4.
Performance of the D:A:D risk score
| CHU Sourô Sanou | CePReF | CHUSO | CIRBA | Total | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||
| Discrimination | ||||||||||
| C-statistics | 0.81 | (0.78–0.84) | 0.81 | (0.78–0.84) | 0.79 | (0.73–0.86) | 0.81 | (0.77–0.85) | 0.81 | (0.79–0.83) |
| ≥ 0 | ≥ 5 | ≥ 0 | ≥ 5 | ≥ 0 | ≥ 5 | ≥ 0 | ≥ 5 | ≥ 0 | ≥ 5 | |
| Sensitivity | 81.5 | 61.4 | 74.4 | 57.3 | 90.7 | 76.7 | 80.2 | 61.1 | 79.4 | 60.9 |
| Specificity | 64.4 | 83.6 | 73.5 | 89.1 | 44.3 | 71.3 | 66.3 | 85.1 | 66.5 | 84.9 |
| Calibration | ||||||||||
| Calibration (O/E) | ||||||||||
| Low (score < 0) | 2.28 | (1.69–3.08) | 2.52 | (1.95–3.26) | 1.50 | (0.56–3.99) | 2.45 | (1.73–3.49) | 2.38 | (2.01–2.82) |
| Medium (score 0–4) | 0.76 | (0.50–1.15) | 0.72 | (0.48–1.08) | 0.58 | (0.16–2.06) | 0.87 | (0.53–1.43) | 0.74 | (0.58–0.94) |
| High (score ≥ 5) | 0.43 | (0.31–0.61) | 0.49 | (0.36–0.67) | 0.40 | (0.14–1.12) | 0.45 | (0.30–0.67) | 0.43 | (0.35–0.52) |
| Total | 1.23 | (1.08–1.39) | 1.51 | (1.33–1.72) | 0.66 | (0.49–0.89) | 1.37 | (1.18–1.61) | 1.27 | (1.18–1.37) |
CHU Sourô Sanou, University Teaching Hospital Sourô Sanou in Bobo Dioulasso, Burkina Faso; CePReF, the Centre de Prise en Charge, de Recherche et de Formation; CIRBA, Centre Intégré de Recherches Biocliniques d’Abidjan, Abidjan, Côte d’Ivoire; CHUSO, University Teaching Hospital Sylvanus Olympio, Lomé, Togo; O/E, number of observed/expected events according to the D:A:D model.