Skip to main content

Table 4 Change in BMI status between intervention and control

From: School-based gardening, cooking and nutrition intervention increased vegetable intake but did not reduce BMI: Texas sprouts - a cluster randomized controlled trial

Pre-Intervention

Post-Intervention

Intervention (m = 8)

Control (m = 8)

Differences in Mean percentage (SE)b

Intervention Effect

p-value†

Sidak

p-value+

Mean percentage of students by school (SE)a

Mean percentage of students by school (SE)a

Normal/underweight

Normal/underweight

52.64(2.09)

49.34(1.81)

−3.3(2.76)

0.25

0.93

Normal/underweight

Overweight

2.68(0.42)

2.83(0.45)

0.15(0.614)

0.81

1

Normal/underweight

Obese

0.26(0.17)

0.33(0.14)

0.07(0.222)

0.75

1

Overweight

Normal/underweight

3.69(0.55)

5.42(0.45)

1.74(0.712)

0.03

0.23

Overweight

Overweight

11.75(1.15)

13.04(0.95)

1.3(1.49)

0.40

0.99

Overweight

Obese

1.42(0.37)

1.88(0.41)

0.46(0.55)

0.42

0.99

Obese

Normal/underweight

0.21(0.11)

0.06(0.06)

−0.15(0.12)

0.22

0.90

Obese

Overweight

3.08(0.51)

2.60(0.39)

−0.49(0.64)

0.46

1

Obese

Obese

24.28(1.64)

24.50(1.40)

0.22(2.15)

0.92

1

  1. BMI body mass index
  2. a Weighted mean percentage and standard error of the mean percentage (SE) of each category change. Weighted refers to total number of participants within each school
  3. bDifferences of the weighted mean percentage between intervention and control and standard error of the differences in the weighted mean percentage of each category change
  4. †T-Tests were used to determine differences in categorical weight status between intervention and control groups by each change of weight status combination
  5. +Sidak p-value: adjusted for multiple comparison