Table 3. Pooled estimates of the sensitivity, specificity, positive and negative likelihood ratios and diagnostic odds of the Hcon/Qcon ratio for hamstring strain injury prediction, by different cut-off score.
| Cut-off score | TP | FP | FN | TN | Sensitivity | Specificity | PPV | NPV | LR+ | LR- |
|---|---|---|---|---|---|---|---|---|---|---|
| (95% CI) | (95% CI) | (95% CI) | (95% CI) | (95% CI) | (95% CI) | |||||
| [%] | [%] | [%] | [%] | |||||||
| Hcon/Qcon <0.47 | 2 | 18 | 10 | 310 | 16.7 (2.1–4.8) | 94.5 (91.5–96.7) | 10 (1.2–31.7) | 96.9 (94.3–98.5) | 3.04 (0.79–11.63) | 1.67 (0.24–11.43) |
| Hcon/Qcon <0.6 | 6 | 174 | 6 | 154 | 50.0 (21.1–78.9) | 46.9 (41.4–52.5) | 3.3 (1.2–7.11) | 96.2 (92.0–98.6) | 0.94 (0.53–1.67) | 1.06 (0.59–1.89) |
| Hcon/Qcon <0.658 | 11 | 249 | 1 | 79 | 91.7 (61.5–99.8) | 24.1 (19.6–29.1) | 4.3 (2.1–7.4) | 98.8 (93.2–99.9) | 1.21 (1.01–1.45) | 0.35 (0.05–2.28) |
TP–true positives, FP–false positives, FN–false negatives, TN–true negatives, CI–confidence interval
PPV–positive predictive value
NPV–negative predictive value
LR+–positive likelikood ratio
LR-–negative likelihood ratio