Table 4.
Ottawa rules for ankle and foot injuries
| Criteria | Sensitivity % (95% Cİ) | Specificity % (95 % Cİ) | PPV % (95 % Cİ) |
NPV % (95 % Cİ) |
LR + (95 % Cİ) |
LR – (95 % Cİ) |
Accuracy % (95 % Cİ) | |
| Ankle n=403 | LMP | 84.62 (73.52 - 92.37) | 85.80 (81.62 -89.34) | 53.40 (46.36 -60.30) | 96.67 (94.24-98.09) | 5.96 (4.5-7.9) | 0.18 (0.1-0.38) | 85.61 (81.80-88.89) |
| MMP | 33.85 (22.57 - 46.65) | 96.45 (93.88- 98.15) | 64.71 (48.87- 77.86) | 88.35(86.42 - 90.03) | 9.53 (4.97-18.28) | 0.69 (0.58-0.82) | 86.35 (82.61-89.55) | |
| WB | 95.38 (87.10 - 99.04) | 49.11 (43.66–54.58) | 26.50 (24.27- 28.85) | 98.22 (94.80 -99.41) | 1.87 (1.66 - 2.10) | 0.09 (0.03-0.27) | 56.58 (51.58-61.48) | |
| Ottawa ankle | 100 (94.48-100) | 45.27 (39.87-50.74) | 26.00 (24.18-27.91) | 100 | 1.83 (1.66-2.02) | 0 | 54.09 (49.09-59.04) | |
| Foot n=389 | NP | 6.12 (1.28 – 16.87) | 97.65 (95.42-98.98) | 27.27 (9.33-57.73) | 87.83 (87.02-88.59) | 2.60 (0.71- 9.47) | 0.96 (0.89-1.03) | 86.12 (82.28-89.40) |
| 5th MP | 89.80 (77.77 - 96.60) | 97.06 (94.66–98.58) | 81.48 (70.34-89.09) | 98.51 (96.64-99.34) | 30.53(16.46-56.63) | 0.11 (0.05-0.25) | 96.14 (93.72-97.83) | |
| WB | 73.47 (58.92-85.05) | 47.34 (41.94-52.81) | 16.74 (14.18-19.66) | 92.53 (88.47-95.24) | 1.40 (1.15-1.70) | 0.56 (0.35-0.90) | 50.64 (45.56-55.72) | |
| Ottawa foot | 100 (92.75-100) | 45.00 (39.63-50.46) | 20.76 (19.23-22.39) | 100 | 1.82 (1.65-2.00) | 0 | 51.93(46.84-56.99) |
LMP: Lateral Malleolar Pain, MMP: Medial Malleolar Pain, NP: Navicular Pain; MP: Metatarsal Pain WB: Weight Bearing, PPV; Positive Predictive Value, NPV; Negative Predictive Value, LR; Likelihood Ratio