Table 3.
Diagnostic performance of variables as esophageal varices predictors
| Variables | Sensitivity (95%CI) | Specificity (95%CI) | Positive predictive value (95%CI) | Negative predictive value (95%CI) | Positive likelihood ratio (95%CI) | Negative likelihood ratio (95%CI) |
| Clinical prediction rule < 115 | 76.6 (64.0-85.8) | 70.8 (48.7-86.5) | 87.5 (75.3-94.4) | 53.1 (35.0-70.4) | 2.63 (1.38-4.96) | 0.33 (0.20-0.53) |
| Clinical prediction rule < 114 | 75.0 (62.3-84.6) | 79.2 (57.3-92.0) | 90.5 (78.5-96.5) | 54.2 (36.8-70.8) | 3.60 (1.63-7.95) | 0.32 (0.20-0.49) |
| Platelets < 115 | 67.6 (55.3-77.9) | 81.3 (62.9-92.1) | 88.8 (76.6-95.4) | 53.0 (38.4-67.2) | 3.61 (1.72-7.54) | 0.40 (0.28-0.56) |
| Platelets/spleen size z score < 25 | 68.8 (55.8-79.4) | 79.2 (57.3-92.0) | 89.8 (76.9-96.2) | 48.7 (32.7-64.9) | 3.30 (1.48-7.32) | 0.39 (0.27-0.58) |
| Platelets/spleen size < 1 | 72.3 (59.6-82.3) | 66.7 (44.6-83.6) | 85.4 (72.8-93.0) | 47.0 (30.1-64.6) | 2.17 (1.20-3.89) | 0.42 (0.27-0.64) |
| Risk score > -1.2 | 80.3 (67.2-89.3) | 70.9 (51.7-85.1) | 86.3 (75.2-93.2) | 61.1 (43.5-76.4) | 2.77 (1.57-4.85) | 0.28 (0.17-0.45) |
| APRI > 1.4 | 63.4 (51.0-74.2) | 65.6 (46.7-80.8) | 80.3 (67.2-89.3) | 44.7 (30.4-59.8) | 1.84 (1.10-3.07) | 0.56 (0.39-0.78) |
APRI: Aspartate aminotransferase to platelet ratio index.