Table 3

Adjusted Accelerometer Physical Activity (SE) by Condition and Weight Status for After-School Participants (N = 246).

After School Session

Adjusted Means (SE)1

Condition*Weight Status

p2

Variable

Control Sites

HOP'N Sites

Yr. B

Yr. 1

Yr. 2

Yr. B

Yr. 1

Yr. 2

All After School Time (Mean Minutes)

Sedentary

0.24

Normal

39.93

(4.43)

33.10

(4.90)

32.38

(4.31)

39.21

(4.30)

28.02

(4.00)

32.86

(3.67)

Overweight/Obese

32.32

(5.05)

36.18

(5.81)

32.30

(4.92)

46.92

(4.70)

31.35

(4.82)

32.65

(3.92)

Vigorous

0.34

Normal

7.17

(1.77)

4.59

(1.93)

6.39

(1.73)

5.92

(1.68)

6.25

(1.56)

7.07

(1.46)

Overweight/Obese

7.34

(1.98)

2.29

(2.24)

3.63

(1.94)

2.45

(1.81)

3.33

(1.86)

5.99

(1.55)

MVPA

0.04*

Normal

17.70

(3.04)

15.09

(3.30)

15.80

(3.00)

17.57b

(2.86)

19.74

(2.67)

16.79

(2.51)

Overweight/Obese

20.98a

(3.40)

13.13

(3.80)

12.44c

(3.31)

11.33ab

(3.09)

15.13

(3.15)

17.25

(2.65)

All Active Recreation Time (Percent Time)

Sedentary

0.01

Normal

19.94

(4.70)

12.39

(5.20)

15.65

(4.57)

7.72b

(4.70)

10.98

(4.18)

14.54

(3.92)

Overweight/Obese

14.73

(5.33)

23.13

(6.09)

14.48

(5.18)

19.11b

(5.20)

14.69

(5.04)

10.62

(4.14)

Vigorous

0.26

Normal

17.48

(6.20)

15.48

(6.64)

23.90

(6.09)

18.12

(5.93)

18.61

(5.39)

23.62

(5.14)

Overweight/Obese

17.70

(6.75)

8.57

(7.47)

13.96

(6.64)

12.78

(6.41)

8.16

(6.19)

21.44

(5.34)

MVPA

0.13

Normal

42.91

(8.07)

41.84

(8.67)

51.14

(7.93)

50.87

(7.72)

48.36

(7.02)

48.97

(6.69)

Overweight/Obese

45.09

(8.82)

28.74

(9.79)

43.29

(8.66)

41.23

(8.36)

36.13

(8.11)

51.19

(6.97)

Organized Active Recreation Time (Percent Time)

Sedentary

0.04*

Normal

22.49b

(4.51)

11. 04b

(5.54)

7.16

(4.41)

4.11b

(4.89)

15.23c

(4.29)

11.75

(3.72)

Overweight/Obese

12.72ab

(5.93)

27.0c

(7.13)

8.05c

(5.46)

18.77ab

(5.75)

14.93

(5.85)

11.51

(4.16)

Vigorous

0.23

Normal

11.92

(6.21)

14.83

(6.78)

22.78

(5.97)

22.56

(5.97)

20.04

(5.46)

25.45

(5.15)

Overweight/Obese

15.24

(6.70)

1.73

(7.74)

12.65

(7.31)

17.42

(6.57)

12.55

(6.42)

22.65

(5.37)

MVPA

0.38

Normal

33.66

(7.04)

35.35

(8.04)

49.28

(7.80)

46.17

(6.92)

36.49

(7.88)

35.37

(6.05)

Overweight/Obese

36.93

(7.90)

20.03

(7.91)

44.15

(9.00)

29.50

(7.01)

47.89

(5.83)

44.33

(6.34)

Note. Yr. B = Baseline Year. Yr. 1 = Intervention year 1. Yr. 2 = Intervention year 2.

1Mixed model ANCOVA Means adjusted for school random effect and condition, strata, year, monitor wearing time, demographics (gender, S.E.S., race/ethnicity, age, and grade) and demographic interactions with condition, strata, and year fixed effects.

2Mixed model ANCOVA weight status by condition by year interaction test. A significant difference reflects differences in the response variable due to baseline line weight status and the intervention.

* Significant at p < .05.

aSignificant difference (p < .05) between conditions(intervention, control) at same time period within weight status groups (normal, overweight/obese).

bSignificant difference (p < .05) between weight status groups (normal, overweight/obese) at same time period within conditions (intervention, control).

cSignificant difference (p < .05) from prior time period within weight status groups(normal, overweight/obese)

Dzewaltowski et al. International Journal of Behavioral Nutrition and Physical Activity 2010 7:90   doi:10.1186/1479-5868-7-90

Open Data