Sedentary behaviours and its association with bone mass in adolescents: the HELENA cross-sectional study

BMC Public Health

Table 2 Linear regression analysis for whole body bone mineral content as regards to sedentary behaviours

Boys (n=178)				Girls (n=181)
*Model 1: Adjusted by height and sexual maturation*
Sedentary behaviours ^†	β ^a	Partial Corr ^b	P	β ^a	Partial Corr ^b	P
TV viewing ^c	−0.043	−0.057	0.452	0.030	0.040	0.607
Use of computer games ^c	0.066	0.089	0.242	−0.039	−0.052	0.502
Use of console games ^d	0.001	0.001	0.988	−0.135	−0.202	0.188
Use of internet for non-study ^d	−0.067	−0.093	0.269	0.066	0.089	0.280
Use of internet for study ^d	−0.023	−0.029	0.745	0.097	0.132	0.119
Time of study ^c	−0.080	−0.08	0.159	−0.129	−0.174	0.023
Total sedentary time ^d	−0.092	−0.157	0.043	−0.087	−0.117	0.139
Model 2: Model 1 + lean mass
TV viewing ^c	0.010	0.022	0.772	0.003	0.005	0.947
Use of computer games ^c	−0.008	−0.017	0.822	−0.043	−0.072	0.356
Use of console games ^d	0.046	0.104	0.238	−0.053	−0.101	0.518
Use of internet for non-study ^d	−0.074	−0.167	0.047	0.058	0.097	0.241
Use of internet for study ^d	−0.029	−0.063	0.484	0.089	0.149	0.055
Time of study ^c	0.016	0.033	0.663	−0.045	−0.074	0.338
Total sedentary time ^d	−0.033	−0.074	0.343	−0.021	−0.035	0.662
Model 3: Model 2 + MVPA ^e
TV viewing ^c	0.006	0.012	0.872	0.001	0.002	0.983
Use of computer games ^c	−0.010	−0.022	0.776	−0.044	−0.073	0.347
Use of console games ^d	0.043	0.099	0.265	−0.036	−0.067	0.673
Use of internet for non-study ^d	−0.075	−0.168	0.047	0.064	0.109	0.190
Use of internet for study ^d	−0.034	−0.073	0.421	0.085	0.140	0.071
Time of study ^c	0.015	0.033	0.673	−0.050	−0.081	0.296
Total sedentary time ^d	−0.037	−0.083	0.292	−0.024	−0.040	0.613

ISSN: 1471-2458