Table 3.
Hip-worn accelerometer cutpoints for AAI per 15-seconds derived from ROC-based approach (N=199); WHI OPACH Calibration Study (N=199).
| Activity Intensity | Cutpoints (AAI/15-sec) | Sensitivity | Specificity | Sensitivity+Specificity | AUC |
|---|---|---|---|---|---|
|
| |||||
| SB vs. LLPA | 101 | 0.79 | 0.88 | 1.67 | 0.92 |
| LLPA vs. HLPA | 270 | 0.79 | 0.90 | 1.70 | 0.94 |
| HLPA vs. MVPA | 587 | 0.82 | 0.97 | 1.79 | 0.97 |
Abbreviations: AUC = Area under the ROC curve; SB = sedentary behavior; LLPA = low light physical activity; HLPA = high light physical activity; MVPA = moderate and vigorous physical activity