Table 2. Areas under the curve (AUC) and respective cut-off points (Youden) across all body composition indices.
| Group | Index | Cut-off point | Youden index | AUC | SE | 95% CI | p | 
|---|---|---|---|---|---|---|---|
| Men | BMI | 24.38 | 0.30 | 0.623 | 0.072 | [0.483–0.764] | 0.0854 | 
| FMI | 3.74 | 0.20 | 0.572 | 0.072 | [0.430–0.714] | 0.3219 | |
| SMI | 16.40 | 0.23 | 0.608 | 0.073 | [0.465–0.752] | 0.1376 | |
| MFR | 3.70 | 0.16 | 0.495 | 0.077 | [0.343–0.646] | 0.9467 | |
| Women | BMI | 20.90 | 0.27 | 0.596 | 0.086 | [0.427–0.764] | 0.2668 | 
| FMI | 4.17 | 0.32 | 0.614 | 0.092 | [0.434–0.794] | 0.2148 | |
| SMI | 8.96 | 0.24 | 0.579 | 0.095 | [0.394–0.765] | 0.4018 | |
| MFR | 1.67 | 0.29 | 0.628 | 0.098 | [0.437–0.819] | 0.1894 |