ICC between physical activity (min/day) and physical activity level based on data of AD and accelerometer, and differences between physical activity based on data of accelerometer and accelerometer corrected for non-wear. Values are mean (SD) unless otherwise specified.
| Variables | AD | Accelerometer | AD − Accelerometer, Mean Difference (95% CI), Significance* | ICC (95% CI) | ActicalCOR | Acticalcor − Accelerometer, Mean Difference (95% CI), Significance* | Acticalcor − Accelerometer, ES |
|---|---|---|---|---|---|---|---|
| Rest† | 1156 (77) | 1166 (53) | −10 (28.2–8.4), p = 0.29 | 0.41 (0.19–0.60) | 1145 (52) | −21 (−25 to −16), p < 0.01 | 1.11 |
| LPA† | 209 (79) | 225 (40) | −16 (−36.8 to 4.4), p = 0.12 | 0.17 (−0.08 to 0.40) | 243 (41) | 18 (14–22), p < 0.01 | 1.12 |
| MVPA† | 76 (40) | 50 (25) | 26 (16.1–36.0), p < 0.01 | 0.24 (−0.01 to 0.46) | 52 (25) | 2 (0.9–3.8), p < 0.01 | 0.44 |
| PAL | 1.63 (0.14) | 1.54 (0.09) | 0.09 (0.05–0.11), p < 0.01 | 0.41 (0.09–0.63) | NA | NA | NA |
↵† Min/day.
↵* Results of paired sample Student t test. ICC: intraclass correlation coefficient; AD: activity diary; LPA: light physical activity; MVPA: moderate to vigorous physical activity; PAL: physical activity level; ActicalCOR: Actical (accelerometer) data corrected for non-wear time; ES: effect size (mean difference/SDdifference); NA: not applicable.