| Underweight (body mass index<18.5 kg/m2) | Obese (body mass index≥ 30.0 kg/m2) | ||||
---|---|---|---|---|---|---|
 | All participants | Females | Males | All participants | Females | Males |
Mid-upper arm circumference cut-off | ≤ 25.5 cm | ≤ 25.5 cm | ≤ 25.5 cm | ≥ 29.5 cm | ≥ 29.5 cm | ≥ 29.5 cm |
Area under the curve (95.0% confidence interval) | 0.82 (0.78–0.86) | 0.83 (0.78–0.87) | 0.83 (0.77–0.88) | 0.84 (0.78–0.90) | 0.84 (0.76–0.91) | 0.86 (0.76–0.95) |
Youden's index | 0.51 | 0.51 | 0.51 | 0.62 | 0.59 | 0.64 |
Sensitivity | 96.0 | 97.0 | 96.0 | 70.3 | 68.9 | 72.4 |
Specificity | 54.0 | 54.0 | 56.0 | 92.0 | 91.0 | 92.2 |