Table 2. Area under curve, sensitivity, specificity for the force platform variables.
| Force plate variable | AUC | Sensitivity (%) | Specificity (%) | 95% CI | P | cut-off |
|---|---|---|---|---|---|---|
| A-COP (cm2) | 0.72 | 66 | 68 | 0.64–0.78 | < 0.001* | > 10.3 |
| VEL A/P (cm/s) | 0.68 | 78 | 54 | 0.60–0.76 | 0.001* | > 2.9 |
| VEL M/L (cm/s) | 0.65 | 70 | 58 | 0.57–0.72 | 0.002* | > 3.4 |
Receiver Operating Characteristic (ROC) curve analysis. AUC: Area Under the Curve; 95% CI: confidence interval; Area of center of pressure (A-COP); COP velocity in the anteroposterior (VEL A/P) and mediolateral (VEL M/L) directions.
*Statistical significant differences between those with and without falls (n = 170).