Table 3. Area under the receiver operating characteristics curve, sensitivities, specificities, positive predictive values, negative predictive values, positive likelihood ratio, negative likelihood ratio, correctly classified, Youden index, and optimal cut-off values of mid-upper-arm circumference in predicting overweight (n = 851).
| Sex | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | LR+ | LR− | Correctly classified (%) | Youden index | Cut off point (cm) |
|---|---|---|---|---|---|---|---|---|---|
| (95% CI) | (95% CI) | (95% CI) | (95% CI) | (95% CI) | (95% CI) | ||||
| Males | 94.1 | 89.1 | 52.2 | 99.2 | 8.7 | 0.07 | 89.7 | 0.83 | ≥ 27.75 |
| (83.8–98.8) | (85.7–92) | (45–59.3) | (97.6–99.7) | (6.5–11.5) | (0.0–0.2) | ||||
| Females | 90.3 | 90.7 | 68.4 | 97.7 | 9.7 | 0.11 | 90.6 | 0.81 | ≥ 27.90 |
| (81–96) | (87–93.6) | (60.4–75.4) | (95.4–98.8) | (6.9–13.8) | (0.1–0.2) | ||||
| Total | 91.1 | 90.3 | 61.7 | 98.3 | 9.3 | 0.10 | 90.4 | 0.81 | ≥ 27.95 |
| (84.6–95.5) | (87.9–92.3) | (56.2–66.9) | (97.1–99) | (7.4–11.7) | (0.1–0.2) |
CI, confidence interval; LR+, positive likelihood ratio; LR-, negative likelihood ratio, NPV, negative predictive value; PPV, positive predictive value.