Table 6.
Sedentary and stationary time estimates from AG and GA free-living data compared with activPAL.
| Criterion | Comparison | Mean (SD) Minutes | MPE (SD) | MAPE (SD) | Limits of Agreement (Lower to Upper) | 95% CI of Mean Biases (Lower to Upper) | Correlation | p Value | Equivalency Analysis (Minutes) |
|---|---|---|---|---|---|---|---|---|---|
| Sedentary time | |||||||||
| activPAL (sit/lie) | 466.3 (131.9) | Zone of Equivalence: 419.6–512.9 | |||||||
| ActiGraph (48 mg) | 499.5 (143.1) | −7.3% (10.5%) | 9.5% (8.5%) | from −54 to 120 | from 13 to 53 | 0.95 | 0.003 | 90% CI 483.6–515.3 | |
| GENEActiv (52 mg) | 509.8 (145.0) | −9.5% (10.1%) | 10.6% (8.8%) | from −44 to 132 | from 23 to 64 | 0.95 | <0.001 | 90% CI 493.8–525.9 | |
| Stationary time | |||||||||
| activPAL (sit/lie/stand) | 594.6 (161.2) | Zone of equivalence: 535.1–654 | |||||||
| ActiGraph (58 mg) | 522.1 (147.6) | 12.2% (5.6%) | 12.2% (5.6%) | from −141 to −4 | from −88 to −57 | 0.98 | <0.001 | 90% CI 509.6–534.5 | |
| GENEActiv (61 mg) | 529.6 (148.5) | 10.9% (4.9%) | 10.9% (4.9%) | from −124 to −6 | from −79 to −51 | 0.98 | <0.001 | 90% CI 518.7–540.4 | |
MPE = mean percentage error; MAPE = mean absolute percentage error; CI = confidence interval.