Table 2 Linear mixed model estimates of regression parameters
From: Measuring moderate-intensity walking in older adults using the ActiGraph accelerometer
Variable | Modela | Intercept (95% CI) (MVPA cut point) | METs (linear term) (95% CI) | METs (quadratic term) (95% CI) | BMI (95% CI) | Intercept SD (inter-individual variability in MVPA cut point) |
|---|---|---|---|---|---|---|
VA (counts · min−1) | 1 | 1013 (734, 1292) | 1062 (902, 1221) | 71 (−51, 193) | - | 941.3 |
|  | 2 | 1015 (763, 1267) | 1622 (1435, 1793) | 70 (−50, 190) | −73 (−128, −18) | 845.8 |
VM (counts · min−1) | 1 | 1924 (1657, 2192) | 1665 (1363, 1967) | −251 (−450, −51) | - | 888.6 |
|  | 2 | 1931 (1690, 2172) | 1656 (1350, 1962) | −181.1 (−384, 22) | −81 (−140, −22) | 793.2 |
Walking speed (km · hr−1) | 1 | 2.5 (2.2, 2.8) | 1.8 (1.6, 1.9) | −0.3 (−0.4, −0.2) | - | 0.9920 |
|  | 2 | 2.5 (2.3, 2.8) | 1.7 (1.6, 1.9) | −0.2 (−0.4, −0.1) | 0 (−0.1, 0) | 0.8973 |