Table 4.
Light activity |
Moderate activity |
Vigorous activity |
|||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
β | 95% CI | p | β | 95% CI | p | β | 95% CI | p | |||||
TBLH | BMC | 3.89 | −0.11 | 7.89 | 0.06 | 18.83 | 13.30 | 24.36 | <0.001 | 6.59 | 0.58 | 12.60 | 0.03 |
Area | 2.47 | −0.30 | 5.24 | 0.08 | 8.73 | 4.90 | 12.56 | <0.001 | 4.59 | 0.42 | 8.75 | 0.03 | |
BMD | 1.69 | 0.15 | 3.23 | 0.03 | 7.48 | 5.36 | 9.61 | <0.001 | 2.44 | 0.13 | 4.75 | 0.04 | |
aBMC | 0.85 | −1.14 | 2.84 | 0.4 | 8.09 | 5.33 | 10.84 | <0.001 | 0.94 | −2.05 | 3.94 | 0.5 | |
Upper limb | BMC | 1.15 | 0.49 | 1.81 | <0.001 | 0.11 | −0.80 | 1.02 | 0.8 | 1.34 | 0.35 | 2.34 | 0.008 |
Area | 1.02 | 0.34 | 1.71 | 0.003 | −0.06 | −1.01 | 0.88 | 0.9 | 1.12 | 0.09 | 2.15 | 0.03 | |
BMD | 2.20 | 0.92 | 3.47 | <0.001 | 0.17 | −1.59 | 1.93 | 0.9 | 2.83 | 0.92 | 4.75 | 0.004 | |
aBMC | 0.25 | −0.04 | 0.54 | 0.09 | 0.17 | −0.23 | 0.57 | 0.4 | 0.36 | −0.08 | 0.79 | 0.1 | |
Lower limb | BMC | 2.94 | 1.15 | 4.73 | 0.001 | 13.07 | 10.60 | 15.53 | <0.001 | 2.25 | −0.43 | 4.94 | 0.1 |
Area | 1.43 | 0.46 | 2.41 | 0.004 | 5.07 | 3.72 | 6.41 | <0.001 | 0.76 | −0.70 | 2.23 | 0.3 | |
BMD | 2.81 | 0.52 | 5.09 | 0.02 | 12.61 | 9.46 | 15.77 | <0.001 | 2.91 | −0.52 | 6.34 | 0.1 | |
aBMC | 0.74 | −0.70 | 2.19 | 0.3 | 5.30 | 3.30 | 7.30 | <0.001 | 1.08 | −1.08 | 3.25 | 0.3 |
Analyses were adjusted for age of DXA scan, sex, socio-economic factors, height, lean mass, and fat mass (n = 4457). β reflects the change in DXA outcome per 100 cpm increase in activity levels, after multiple regression analysis in which all three activity terms were included simultaneously (height included both linear and quadratic terms).