Table 2 Multivariate association between sedentary behaviours and femoral BMC in men

Model 1

0.673

Model adjusted for

Age (β = 0.704)^***, BMI (β = 0.231) ^***, Ethnicity (β = 0.101)^*** and Vitamin D (β = 0.076)^***

Objective sedentary time

0.000

−1.09 (−4.66 to 6.76)

0.009

Time spent watching TV

0.002 ^*

−0.44 (−0.84 to −0.05) ^*

−0.053

Time spent on computer

0.001

−0.41 (−0.96 to 0.14)

−0.035

Total screen time

0.002 ^*

−0.21 (−0.41 to 0.00) ^*

−0.046

Total non-screen SB

0.002

0.17 (−0.01 to 0.35)

0.044

α

0.000

−1.36 (−4.24 to 1.51)

−0.023

Model 2

0.687

Model 1 adjusted for objectively measured MVPA (β = 0.144) ^***

Objective sedentary time

0.009 ^***

15.93 (8.64 to 23.11) ^***

0.143

Time spent watching TV

0.002 ^*

- 0.45 (−0.83 to −0.06) ^*

−0.053

Time spent on computer

0.000

−0.35 (−0.89 to 0.19)

−0.030

Total screen time

0.001

−0.82 (−1.80 to 0.16)

−0.039

Total non-screen SB

0.006 ^**

0.327 (0.141 to 0.513) ^**

0.095

α

0.006 ^***

−5.67 (−8.86 to −2.49) ^***

−0.096

Model 3

0.415

Model 1 adjusted for weekly frequency of strengthening exercise (β = 0.102) ^**

Objective sedentary time

0.000

−1.26 (−8.37 to 5.85)

−0.013

Time spent watching TV

0.002

− 0.48 (−0.97 to 0.02)

−0.071

Time spent on computer

0.000

−0.41 (−1.21 to 0.34)

−0.038

Total screen time

0.003

−0.90 (−2.19 to 0.38)

−0.052

Total non-screen SB

0.001

0.13 (−0.11 to 0.36)

0.038

α

0.000

−0.27 (−0.40 to 0.34)

−0.005

Model 4 ^e

0.510

Model 1 adjusted for weekly frequency of vigorous playing or exercise (β = 0.126)^*

Objective sedentary time

0.002

−3.13 (−9.03 to 2.78)

−0.061

Time spent watching TV

0.001

0.114 (−0.28 to 0.47)

0.036

Time spent on computer

0.004

−0.24 (−0.60 to 0.12)

−0.076

Total screen time

0.000

0.12 (−0.71 to 0.96)

0.017

Total non-screen time SB

0.000

−0.03(−0.18 to 0.13)

−0.021

α

0.000

−1.88 (−7.15 to 3.40)

−0.08