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Table 3 Frequency distribution of child-level BMI category and zBMI by intervention and control groups, pre- and post-intervention (n = 209)

From: Nutrition and physical activity randomized control trial in child care centers improves knowledge, policies, and children’s body mass index

 

Intervention

 

Control

 

BMI Category

Pre-intervention N (%)

Post-intervention N (%)

p-value

Pre-intervention N (%)

Post-intervention N (%)

p-value

Underweight

1 (1.01)

0 (0.00)

0.32

2 (1.82)

2 (1.82)

1.00

Healthy weight

58 (58.59)

62 (62.63)

0.56

68 (61.82)

72 (65.45)

0.58

Overweight

15 (15.15)

17 (17.17)

0.70

23 (20.91)

16 (14.55)

0.22

Obese

25 (25.25)

20 (20.20)

0.40

17 (15.45)

20 (18.18)

0.59

Total

99

99

 

110

110

 

zBMI

M (SD), N

M (SD), N

 

M (SD), N

M (SD), N

 
 

0.75 (0.98), 99

0.71 (0.96), 99

0.79

0.61 (0.93), 110

0.67 (0.98), 110

0.66

  1. Note: T-tests were conducted for BMI categories and zBMI means.
  2. zBMI = age- and sex-specific standardized body mass index.