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Table 2 Linear regression analysis of both the total sample (n = 553) and by sex (boys n = 294; girls n = 259) of the variables that showed significance with bone mineral content values and bone mineral density values

From: Influence of weight status on bone mineral content measured by DXA in children

 

Bone mineral content

β (95% CI; p value β)

Bone mineral density

β (95% CI; p value β)

Total

Boys

Girls

Total

Boys

Girls

Adjusted R2 (p Anova)

0.852 (< 0.001)

0.852 (< 0.001)

0.859 (< 0.001)

0.712 (< 0.001)

0.667 (< 0.001)

0.760 (< 0.001)

Age (years)

34.5 (18.4–50.6; < 0.001)

19.9 (−2.7–42.5; < 0.001)

44.2 (21.5–66.9; < 0.001)

0.016 (0.012–0.019; < 0.001)

0.016 (0.011–0.021; < 0.001)

0.016 (0.012–0.020; < 0.001)

Height (cm)

17.8 (13.9–21.6; < 0.001)

24.2 (18.8–29.5; < 0.001)

13.5 (7.9–19.0; < 0.001)

NA

NA

NA

Weight (kg)

20.2 (16.6–23.9; < 0.001)

14.7 (9.8–19.5; < 0.001)

24.1 (18.4–99.7; < 0.001)

0.005 (0.004–0.006; < 0.001)

0.005 (0.003–0.006; < 0.001)

0.005 (0.004–0.006; < 0.001)

Waist (cm)

−13.1 (− 17.1–-9.0; < 0.001)

− 11.8 (− 16.7–6.9; < 0.001)

−12.9 (− 20.0 – − 5.9; < 0.001)

−0.003 (− 0.004– − 0.002; < 0.001)

−0.002 (− 0.004– − 0.001; < 0.001)

-0.002 (− 0.004– − 0.000; < 0.012)

Male gender

47.4 (2.1–92.7; < 0.001)

NA

NA

NS

NA

NA

  1. NA Not Applicable, NS Not Significant