Table 3

Physical characteristics, physical activity, screen time, and dietary measures of the total sample and by control and intervention schools grouped by sex.

Control School

Intervention Schools

TOTAL

Males

n = 47

Females

n = 59

Total

n = 106

Males

n = 139

Females

n = 158

Total

n = 297

n = 403


Age (yrs)

9.6 (0.9)

9.7 (1.0)

9.7 (0.9)

9.6 (0.9)

9.6 (1.0)

9.6 (0.9)

9.7 (0.9)

BMI percentile

77.5 (24.7)

70.0 (29.0)

73.2 (27.3)

74.3 (24.7)

71.2 (28.8)

72.6 (26.9)

73.0 (27.0)

% Underweight

0%

0%

0%

0%

1.3%

0.7%

0.5%

% Normal weight

46.8%

55.9%

51.9%

50.7%

50.6%

50.7%

51.0%

% Overweight

19.1%

11.9%

15.1%

17.4%

19.0%

18.2%

17.4%

% Obese

25.5%

28.8%

27.4%

26.1%

22.8%

24.3%

25.1%

% Severely Obese

8.5%

3.4%

5.7%

5.8%

6.3%

6.1%

6.0%

Physical Activity

Self-report physical activity (d/wk)

4.3 (2.7)

3.2 (2.5)

3.7 (2.6)

3.9 (2.6)

4.0 (2.5)

4.0 (2.5)

3.9 (2.6)

% reporting ≥5 days

48.8%

33.3%

40.0%

46.4%

45.0%

45.7%

43.7%

% reporting 7 days

39.5%

21.1%

29.0%

31.0%

30.0%

30.4%

29.9%

Screen Time

Weekday TV (hrs/d)

1.4 (1.4)

1.7 (1.5)

1.6 (1.4)

1.9 (1.5)

1.8 (1.4)

1.8 (1.5)

1.7 (1.5)

Weekend TV (hrs/d)

2.2 (1.3)

2.4 (1.3)

2.3 (1.3)

2.4 (1.4)

2.4 (1.4)

2.4 (1.4)

2.4 (1.4)

Weekly TV (hrs/d)

1.7 (1.2)

1.9 (1.3)

1.8 (1.3)

2.0 (1.4)

2.0 (1.3)

2.0 (1.3)

1.9 (1.3)

Weekday Screen Time (hrs/d)

3.7 (3.0)

3.4 (3.0)

3.5 (3.0)

5.1 (3.4)

3.9 (3.4)

4.4 (3.4)

4.1 (3.3)

Weekend Screen Time (hrs/d)

5.6 (3.1)

4.7 (3.0)

5.1 (3.1)

6.0 (3.0)

4.9(3.1)

5.4 (3.1)

5.3 (3.1)

Total Screen Time (hrs/d)

4.3 (2.8)

3.8 (2.8)

4.0 (2.8)

5.4 (3.2)

4.2 (3.2)

4.7 (3.2)

4.5 (3.1)

% ≥ 2 hrs/d screen time

74.4%

73.1%

73.7%

82.1%

71.8%

76.7%

75.6%

Diet

Whole grain breads (times/d yesterday)

0.50 (0.77)

0.41 (0.56)

0.45 (0.66)

0.67 (0.79)

0.59 (0.72)

0.62 (0.75)

0.58 (0.73)

Cereals (whole grain) (times/d yesterday)

0.72 (0.88)

0.37 (0.49)

0.52 (0.70)

0.70 (0.94)

0.55 (0.78)

0.62 (0.86)

0.60 (0.82)

French fries or chips (times/d yesterday)

1.00 (1.12)

0.85 (0.87)

0.91 (0.98)

1.00 (0.99)

0.88 (0.87)

0.93 (0.93)

0.93 (0.94)

Vegetables (times/d yesterday)

1.18 (1.15)

0.93 (0.81)

1.04 (0.97)

1.09 (1.03)

0.90 (0.92)

0.99 (0.98)

1.00 (0.97)

Beans (times/d yesterday)

0.36 (0.61)

0.19 (0.39)

0.26 (0.50)

0.51 (0.79)

0.41 (0.68)

0.46 (0.74)

0.41 (0.69)

Fruit (times/d yesterday)

1.57 (1.09)

1.61 (1.00)

1.59 (1.03)

1.42 (1.05)

1.22 (0.92)

1.31 (0.99)

1.38 (1.01)

Fruit juice (times/d yesterday)

0.91 (0.96)

1.07 (0.91)

1.00 (0.93)

1.05 (0.97)

0.96 (0.89)

1.00 (0.93)

1.00 (0.93)

Dairy beverages and food* (times/d yesterday)

3.3 (2.2)

2.8 (1.4)

3.0 (1.8)

3.2 (2.0)

2.6 (1.7)

2.9 (1.8)

2.9 (1.8)

Sugar Drinks** (times/d yesterday)

1.9 (1.3)

1.4 (1.1)

1.6 (1.2)

1.9 (1.6)

1.4 (1.5)

1.6 (1.6)

1.6 (1.5)

Desserts and Candy*** (times/d yesterday)

2.0 (2.1)

1.3 (1.6)

1.6 (1.8)

2.1 (2.2)

2.1 (2.0)

2.1 (2.1)

2.0 (2.0)

Plate Consumption#

Entrée

0.75 (0.25)

0.72 (0.27)

0.73 (0.26)

Fruit

0.55 (0.33)

0.65 (0.29)

0.61 (0.31)

Vegetable

0.35 (0.32)

0.37 (0.32)

0.36 (0.32)

Grain

0.65 (0.31)

0.61 (0.31)

0.63 (0.31)

Milk (ml)

58.6 (68.9)

79.3 (73.4)

69.8 (71.9)


Diet measures expressed as times eaten yesterday. Values are mean (standard deviation) or percentage

*Summary variable combining 3 SPAN items: cheese, milk and yogurt

**Summary variable combining 2 SPAN items: sugar drinks and pop

***Summary variable combining 3 SPAN items: desserts, frozen desserts and chocolate candy

#proportion of item consumed. Note: data from control school was lost due to technical difficulties.

Eisenmann et al. BMC Public Health 2011 11:607   doi:10.1186/1471-2458-11-607

Open Data