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Table 2 Relationships between bone parameters and weight, PA, sitting and eating habits in young boys

From: Dairy product consumption, eating habits, sedentary behaviour and physical activity association with bone mineral density among adolescent boys: a cross-sectional observational study

 

BMD dis

BMD prox

BMC dis

BMC prox

F(p)

F(p)

F(p)

F(p)

Weight (kg)

0.76 (0.386)

0.47 (0.494)

0.70 (0.406)

1.12 (0.293)

MVPA (min/day)

6.53 (0.012)**

2.82 (0.096)

2.69 (0.103)

0.15 (0.702)

SIT time (h/day)

8.62 (0.001)**

5.36 (0.023)*

2.15 (0.146)

2.20 (0.141)

Number of meals (n/day)

0.87 (0.352)

0.34 (0.563)

0.02 (0.885)

0.37 (0.547)

Dairy products (n/day)

5.14 (0.012)*

5.99 (0.016)*

18.9 (0.000)**

13.7 (0.000)**

Calcium intake (mg/day)

3.86 (0.052)*

2.84 (0.095)

2.71 (0.057)

0.63 (0.430)

Protein intake (g/person/day)

6.02 (0.015)*

0.01 (0.939)

13.6 (0.000)**

13.5 (0.000)**

Vitamin D intake (µg/day)

6.55 (0.012)**

0.03 (0.872)

0.62 (0.433)

3.14 (0.079)

Phosphorus intake (mg/day)

3.94 (0.050)*

0.45 (0.503)

4.55 (0.035)*

6.91 (0.009)**

PA (level)

5.59 (0.019)*

0.05 (0.826)

0.35 (0.554)

0.15 (0.702)

F(p)

Rˆ2 adj

18.71 (0.000)

0.61

11.09 (0.000)

0.47

20.06 (0.000)

0.63

20.20 (0.000)

0.63

 

Z-score dis

Z-score prox

% age matched dis

% age matched prox

 

F(p)

F(p)

F(p)

F(p)

Weight (kg)

0.07 (0.792)

0.31 (0.579)

1.29 (0.258)

0.50 (0.479)

MVPA (min/day)

4.19 (0.043)*

1.85 (0.177)

1.02 (0.315)

2.12 (0.149)

SIT time (h/day)

2.15 (0.146)

9.09 (0.003)**

0.83 (0.364)

0.20 (0.655)

Number of meals (n/day)

19.26 (0.000)**

0.15 (0.698)

8.48 (0.004)**

0.19 (0.665)

Dairy products (n/day)

3.64 (0.053)*

1.10 (0.298)

1.68 (0.198)

0.30 (0.585)

Calcium intake (mg/day)

0.98 (0.324)

2.98 (0.087)

0.03 (0.872)

5.50 (0.021)*

Protein intake (g/person/day)

13.89 (0.000)**

0.15 (0.698)

16.6 (0.000)**

0.13 (0.718)

Vitamin D intake (µg/day)

38.04 (0.000)**

0.96 (0.329)

21.5 (0.000)**

2.41 (0.123)

Phosphorus intake (mg/day)

0.05 (0.828)

1.10 (0.298)

2.66 (0.106)

0.88 (0.351)

PA (level)

1.02 (0.314)

25.2 (0.000)**

0.01 (0.985)

20.8 (0.000)**

F(p)

Rˆ2 adj

43.29 (0.000)

0.79

28.19 (0.000)

0.70

30.96 (0.000)

0.72

18.02 (0.000)

0.60

  1. Legend to tab.2: BMD bone mineral density, BMC bone mineral content, dis distal, prox proximal, PA physical activity, MVPA moderate to vigorous physical activity, F Ronald A. Fisher’s test, p p-value; level of statistical significance *p < 0.05 and **p < 0.01, Rˆ2 adj the adjusted R-squared values of determination
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BMC Pediatrics

ISSN: 1471-2431

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