From: An accurate method of measuring shoulder sling compliance: a validation study
Locationb | |||
---|---|---|---|
Bolster | Medial Elbow | Palmar Aspect | |
Total actual wear time logged by volunteers, h | 171.63 | 171.63 | 171.63 |
Total time sensor on, h | 1101.5 | 1101.5 | 1101.25 |
Total estimated time (h) logged by sensor/algorithm | 167.75 | 171.00 | 172.25 |
True positives, h | 167.25 | 166.5 | 168.5 |
True negatives, h | 928.75 | 924.75 | 924.75 |
False positives, h | 0.5 | 4.5 | 3.75 |
False negatives, h | 5 | 5.75 | 4.25 |
Sensitivity (TP) / (TP + FN), % | 97.1 | 96.7 | 97.5 |
Specificity (TN) / (FP + TN), % | 99.9 | 99.5 | 99.6 |
Positive predictive value (TP) / (TP + FP), % | 99.7 | 97.4 | 97.8 |
Negative predictive value (TN) / (FN + TN), % | 99.5 | 99.4 | 99.5 |
Diagnostic accuracy (TP + TN) / (TP + TN + FP + FN), % | 99.5 | 99.1 | 99.3 |