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

BMC Public Health

Table 3 Linear regression analysis for lumbar spine 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	−0.049	−0.066	0.381	0.064	0.082	0.289
Use of computer games ^c	0.068	0.093	0.224	−0.081	−0.103	0.188
Use of console games ^d	−0.008	−0.013	0.884	−0.071	−0.085	0.593
Use of internet for non-study ^d	−0.022	−0.030	0.720	−0.005	−0.006	0.940
Use of internet for study ^d	−0.054	−0.072	0.424	0.069	0.088	0.303
Time of study ^c	−0.061	−0.084	0.274	−0.109	−0.139	0.072
Total sedentary time ^d	−0.073	−0.119	0.127	−0.073	−0.094	0.238
Model 2: Model 1 + lean mass
TV viewing ^c	−0.010	−0.017	0.828	0.048	0.065	0.400
Use of computer games ^c	0.013	0.022	0.777	−0.083	−0.113	0.150
Use of console games ^d	0.024	0.044	0.616	−0.017	−0.021	0.897
Use of internet for non-study ^d	0.011	0.018	0.813	−0.034	−0.046	0.557
Use of internet for study ^d	−0.059	−0.101	0.259	0.098	0.132	0.123
Time of study ^c	0.010	0.016	0.833	−0.056	−0.074	0.342
Total sedentary time ^d	−0.037	−0.064	0.414	−0.032	−0.044	0.583
Model 3: Model 2 + MVPA ^e
TV viewing ^c	−0.016	−0.026	0.734	0.045	0.061	0.429
Use of computer games ^c	0.010	0.018	0.819	−0.085	−0.115	0.144
Use of console games ^d	0.022	0.041	0.643	0.069	0.085	0.602
Use of internet for non-study ^d	−0.027	−0.049	0.569	−0.003	−0.005	0.957
Use of internet for study ^d	−0.067	−0.114	0.207	0.095	0.127	0.139
Time of study ^c	0.009	0.015	0.843	−0.062	−0.083	0.286
Total sedentary time ^d	−0.041	−0.071	0.364	−0.036	−0.049	0.537

ISSN: 1471-2458