The influence of dairy consumption, sedentary behaviour and physical activity on bone mass in Flemish children: a cross-sectional study

Table 2 Standardised regression coefficients, p-value and eta² for the association of physical activity and dairy consumption with BMC (g) and areal BMD (g/cm²) as well as BMC z-score and BMD z-score of the whole body minus head

	BMC (g)^b			areal BMD (g/cm²)^b			BMC z-score^c			BMD z-score^c
	β	p	eta²	β	p	eta²	β	p	eta²	β	p	eta²
Sedentary time (%)^a	−0.021	0.462	0.0004	−0.040	0.236	0.0020	−0.113	0.092	0.0103	−0.156	0.018	0.0143
Light PA (%)^a	0.031	0.252	0.0009	0.320	0.331	0.0010	0.134	0.040	0.0125	0.148	0.023	0.0078
Moderate PA (%)^a	−0.006	0.838	0.0000	0.018	0.607	0.0002	−0.002	0.981	0.0006	0.061	0.381	0.0014
Vigorous PA (%)^a	−0.008	0.752	0.0001	0.041	0.196	0.0020	0.038	0.571	0.0055	0.111	0.095	0.0275
MVPA (%)^a	−0.009	0.755	0.0001	0.033	0.328	0.0010	0.019	0.783	0.0008	0.097	0.159	0.0135
Dairy consumption (g/week)	0.078	0.001	0.0068	0.079	0.003	0.0072	0.173	0.002	0.1070	0.120	0.029	0.0497

Significant association are indicated in bold; Abbreviations: β, standardised regression coefficient; BMC, Bone Mineral Content; BMD, Bone Mineral Density; FMI, fat mass index; FFMI, fat-free mass index; PA, Physical Activity; MVPA, Moderate to Vigorous Physical Activity; η², the proportion of the total variance that is explained by the predictor; ^a % of recorded time; ^bregression model adjusted for age, gender, Tanner stage, height, FMI and FFMI; ^cregression model adjusted for Tanner stage, FMI and FFMI

ISSN: 1471-2458