Table 2.
Hierarchical linear models for activPAL measured sedentary and physical activity behaviours
| Sitting/lying (min/day) | Standing (min/day) | Stepping (min/day) | Steps/day | Sit-to-stand transitions | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Fixed effect | b | (SE) | b | (SE) | b | (SE) | b | (SE) | b | (SE) |
| Intercept, β00 | 353.79 | (9.69)*** | 97.19 | (8.77)*** | 41.86 | (3.45)*** | 3762.62 | (284.17)*** | 28.66 | (1.29)*** |
| Age, β01 | −0.34 | (0.70) | 1.11 | (0.77) | 0.30 | (0.26) | 28.36 | (23.84) | 0.16 | (0.11) |
| Male, β02 | 44.34 | (22.32) | −17.22 | (19.33) | 7.65 | (8.89) | 414.06 | (745.38) | −0.37 | (2.74) |
| White, β03 | 16.63 | (34.15) | −40.33 | (37.13) | −17.17 | (17.27) | −1533.30 | (1417.49) | 1.34 | (3.00) |
| Education, β04 | 24.25 | (15.66) | −16.67 | (18.14) | −4.00 | (4.34) | −323.43 | (375.03) | −2.42 | (1.82) |
| BMI, β05 | −3.68 | (1.72)* | 2.57 | (1.70) | 0.19 | (0.36) | 12.43 | (32.57) | −0.09 | (0.18) |
| Time 2, π1 | −16.48 | (6.71)* | 7.76 | (5.97) | 7.86 | (2.55)** | 838.09 | (235.06)*** | 3.06 | (0.94)** |
| Random effect | Variance | [χ2] | Variance | [χ2] | Variance | [χ2] | Variance | [χ2] | Variance | [χ2] |
| Between-subject, r0 | 74.16 | [315.37]*** | 67.61 | [328.29]*** | 25.91 | [278.70]*** | 4 246 860.05 | [221.11]*** | 94.96 | [283.56]*** |
| Δ(time 2−time1), r1 | 19.62 | [75.51] | 17.87 | [76.03] | 7.64 | [76.05] | 479 478.57 | [75.64] | 7.64 | [75.53] |
| Within-subject, e | 36.57 | 32.42 | 13.86 | 1 639 445.63 | 26.48 | |||||
*
p<0.05;
**
p<0.01;
***
p<0.001.
BMI, body mass index; b, unstandarised beta.