tool | Sensitivity (% Fallers) | Specificity (%Nonfallers) | Overall Prediction | Area Under the ROC Curve | Comparison of the AUC to 0.5 | |||||
---|---|---|---|---|---|---|---|---|---|---|
AUC | SE | 95% CI | Difference | z (Observed Value) | p | 95% CI between AUC and 0.5 (Two-tailed test) | ||||
TUG | 110/280 (39.28%) | 130/220 (59.09%) | 240/500 (48%) | 0.53 | 0.09 | [0.35, 0.70] | 0.03 | 0.30 | 0.76 | [0.147,0.20] |
VFD | 200/280 (71.42%) | 60/220 (27.27%) | 260/500 (52%) | 0.74 | 0.07 | [0.60, 0.88] | 0.24 | 3.30 | 0.001* | [0.091,0.38] |