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Table 2 Changes in adiposity and cardiometabolic risk factors from baseline to the end of follow-up among intervention versus control schoolchildren, by sex

From: Gender differences on effectiveness of a school-based physical activity intervention for reducing cardiometabolic risk: a cluster randomized trial

 

Girls (n = 469)

Boys (n = 443)

 

Baseline a

End of follow-up a

Crude change

Adjusted difference of intervention vs control b(95% CI)

p

Baseline a

End of follow-up a

Crude change

Adjusted difference of intervention vs control b(95% CI)

p

ADIPOSITY

          

Overweight or obesity, %

Control

30.0

31.7

1.7

0.8c (0.3; 1.7)

0.53

36.5

38.5

2.0

0.7c (0.4; 1.2)

0.16

Intervention

33.2

32.8

−0.4

40.3

38.2

−2.1

Underweight, %

          

Control

7.9

7.1

−0.8

1.1c (0.3; 4.7)

0.88

9.5

8.3

−1.2

0.5c (0.1; 2.1)

0.38

Intervention

8.7

7.4

−1.3

6.3

7.3

1

BMI, kg/m 2

          

Control

18.7(3.6)

19.1 (3.7)

0.4

−0.2 (−0.4; 0.1)

0.09

19.0 (3.6)

19.3 (3.7)

0.3

0.01 (−0.1; 0.1)

0.89

Intervention

18.7 (3.5)

19.0 (3.5)

0.3

19.3 (3.6)

19.4 (3.6)

0.1

TST, mm

Control

14.5 (5.4)

17.7 (7.5)

3.2

−1.1 (−2.1; −0.7)

0.02

13.4 (5.7)

16.4 (8.3)

3.0

−0.6 (−1.9; 0.8)

0.43

Intervention

15.7 (5.2)

18.2 (7.6)

2.5

14.8 (5.6)

17.3 (8.2)

2.5

Body fat %

Control

26.3 (6.0)

26.3 (6.0)

0.0

−0.9 (−1.3; −0.4)

<0.001

23.8 (8.3)

23.6 (7.0)

−0.2

−0.5 (−1.2; 0.1)

0.13

Intervention

26.6 (5.8)

25.9 (5.8)

−0.7

24.2 (6.9)

23.5 (6.7)

−0.7

Fat-free mass, kg

Control

26.7 (4.8)

28.5 (5.2)

1.7

0.3 (0.1; 0.6)

0.04

28.0 (4.7)

29.6 (5.2)

1.5

0.5 (0.2; 0.9)

0.003

Intervention

26.5 (4.6)

28.6 (4.9)

2.1

28.1 (4.6)

29.8 (4.5)

1.7

Waist circumference, cm

Control

66.2 (8.8)

68.5 (9.1)

2.3

−2.7 (−4.5; −0.9)

0.01

68.1 (9.3)

69.9 (9.9)

1.8

−1.4 (−2.6; −0.1)

0.03

Intervention

67.1 (8.9)

67.4 (8.4)

0.3

68.1 (9.7)

68.7 (9.2)

0.6

CARDIOMETABOLIC RISK FACTORS

LDL-C, mg/dl

          

Control

94.1 (23.1)

90.7 (22.2)

−3.5

−3.8 (−6.9; −0.7)

0.015

92.9 (20.7)

90.9 (20.9)

−2.0

−2.7 (−6.9; 1.5)

0.21

Intervention

100.7 (24.2)

94.3 (23.1)

−6.4

101.1 (24.5)

97.1 (22.3)

−3.9

TGL/HDL-C, mg/dl

          

Control

1.3 (0.9)

1.3 (0.9)

−0.1

0.0 (−0.2; 0.2)

0.92

1.1 (0.8)

1.0 (0.7)

−0.1

0.4 (0.1; 0.8)

0.02

Intervention

1.3 (1.0)

1.3 (1.0)

0.1

1.1 (0.8)

1.2 (1.2)

0.1

Insulin, μU/mL

Control

8.1 (4.1)

9.7 (7.3)

1.6

−2.3 (−3.7; −0.8)

0.002

7.1 (5.5)

7.9 (6.9)

0.8

−0.04 (−2.3; 2.2)

0.97

Intervention

9.0 (5.4)

8.9 (5.0)

−0.1

7.6 (3.9)

8.0 (7.2)

0.4

CRP, mg/L

Control

1.4 (2.4)

1.6 (2.5)

0.2

0.1 (−0.5; 0.7)

0.83

1.4 (2.1)

1.7 (2.5)

0.3

−0.3 (−1.3; 0.8)

0.62

Intervention

1.5 (2.1)

1.7 (2.2)

0.2

1.4 (2.1)

1.6 (2.3)

0.2

MAP, mm Hg

Control

75.1 (6.3)

76.5 (6.9)

1.4

−0.2 (−2.5; 2.2)

0.89

75.8 (7.4)

76.8 (7.3)

1.04

0.7 (−1.8; 3.1)

0.60

Intervention

74.0 (7.6)

76.3 (6.9)

2.3

74.7 (6.9)

77.2 (6.0)

2.45

TG/HDL-C, mg/dl

          
  1. BMI: Body mass index; TST: Triceps skinfold thickness; LDL-C: LDL-cholesterol; TG/HDL-C: Triglycerides / HDL-cholesterol; CRP: C-reactive protein; MAP: Mean arterial pressure.
  2. aFigures at baseline and end of follow-up correspond to crude data. bDifferences adjusted for baseline value, age, Tanner change and cluster (random effect) using generalized mixed linear models. cOdds ratio of overweight or obesity, and of underweight, among intervention versus control children.
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International Journal of Behavioral Nutrition and Physical Activity

ISSN: 1479-5868

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