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Table 1 Sample Characteristics, TREC IDEA and ECHO, 2006-2010

From: Multilevel predictors of adolescent physical activity: a longitudinal analysis

 

All (n = 578)

Boys (n = 287)

Girls (n = 291)

P-value

 

Mean

SD

Range

Mean

SD

Mean

SD

 

Percent White

86.9

33.8

 

88.5

32.0

85.2

35.5

0.20

Household education, (col grad/prof training)

78.0

41.4

 

80.5

39.7

75.6

43.0

0.18

Percent free/reduced lunch

10.6

30.8

 

9.8

29.7

11.3

31.8

0.61

Age

14.6

1.8

 

14.5

1.8

14.6

1.8

0.91

Pubertal Status

2.9

0.8

 

2.5

0.7

3.2

0.7

< 0.01

%Body fat

20.9

9.9

3.6-60.1

16.0

8.9

25.9

8.3

< 0.01

% Participate in one or more team now and last year

64.9

47.8

0.0-100.0

65.2

47.7

64.6

47.9

0.89

Daily minutes of screen time

312.4

217.5

8.6-1311.4

345.5

231.9

279.8

197.4

< 0.01

Daily minutes of moderate to vigorous physical activity

30.9

17.1

2.2-145.4

35.1

18.9

26.7

14.1

< 0.01

PA Self Efficacy

30.8

4.8

11.0-40.0

31.3

4.4

30.2

5.1

0.01

PA Enjoyment

29.8

5.3

7.0-35.0

30.6

4.9

29.0

5.5

< 0.01

PA Barriers

22.6

6.7

12.0-49.0

21.1

5.9

24.1

7.1

< 0.01

PA Parental Support

11.4

3.7

4.0-20.0

11.5

3.5

11.3

3.8

0.43

PA Peer Support

11.5

4.0

4.0-20.0

11.7

3.9

11.3

4.1

0.18

PA equipment Availability & Access Summary Score

247.4

141.2

0.0-1012.0

272.0

151.6

223.0

125.8

< 0.01

Perceived neighborhood safety

8.6

2.4

5.0-17.0

8.4

2.4

8.8

2.3

0.07

Perceived walking infrastructure quality

13.7

2.9

5.0-20.0

13.7

2.9

13.7

3.0

0.91

GIS Walkability Index

0.1

2.4

-4.1-11.4

0.1

2.3

0.1

2.5

0.85