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Table 2 School neighborhood food environments surrounding US children at baseline and fifth wave of ECLS-K

From: Effects of school neighborhood food environments on childhood obesity at multiple scales: a longitudinal kindergarten cohort study in the USA

Food outlet type

Percent or mean ± SD

p valuea

All (n = 7530)

Boys (n = 3780)

Girls (n = 3750)

Supermarket

 1998

0.56 ± 2.02

0.51 ± 1.77

0.62 ± 2.13

0.263

 2007

0.83 ± 3.63

0.76 ± 3.39

0.91 ± 3.63

0.429

 1998–2007

   

0.206

  Decreased

16.1

15.3

17.0

 

  Constant

13.3

12.3

14.2

 

  Increased

70.6

72.4

68.8

 

Convenience store

 1998

0.13 ± 0.25

0.13 ± 0.22

0.14 ± 0.26

0.460

 2007

0.19 ± 0.40

0.19 ± 0.35

0.20 ± 0.41

0.456

 1998–2007

   

0.937

  Decreased

16.7

16.5

17.0

 

  Constant

19.4

19.6

19.2

 

  Increased

63.9

63.9

63.8

 

Full-service restaurant

 1998

1.38 ± 5.14

1.28 ± 4.57

1.48 ± 5.36

0.163

 2007

1.81 ± 6.93

1.72 ± 6.10

1.90 ± 7.27

0.371

 1998–2007

   

0.278

  Decreased

8.0

8.2

7.8

 

  Constant

5.9

5.2

6.6

 

  Increased

86.1

86.6

85.6

 

Fast-food restaurant

 1998

0.25 ± 0.48

0.24 ± 0.43

0.26 ± 0.51

0.234

 2007

0.43 ± 0.97

0.42 ± 0.87

0.44 ± 0.99

0.527

 1998–2007

   

0.295

  Decreased

3.8

4.0

3.5

 

  Constant

11.3

10.3

12.3

 

  Increased

84.9

85.7

84.2

 

Retail bakery

 1998

0.16 ± 0.50

0.14 ± 0.43

0.17 ± 0.53

0.103

 2007

0.20 ± 0.72

0.19 ± 0.59

0.22 ± 0.80

0.141

 1998–2007

   

0.818

  Decreased

16.0

16.3

15.8

 

  Constant

29.2

28.6

29.7

 

  Increased

54.8

55.1

54.5

 

Dairy product store

 1998

0.05 ± 0.13

0.05 ± 0.12

0.05 ± 0.13

0.815

 2007

0.08 ± 0.20

0.08 ± 0.16

0.08 ± 0.21

0.369

 1998–2007

   

0.194

  Decreased

5.9

6.1

5.6

 

  Constant

31.3

29.7

32.9

 

  Increased

62.8

64.2

61.5

 

Health food store

 1998

0.07 ± 0.26

0.07 ± 0.25

0.07 ± 0.26

0.560

 2007

0.10 ± 0.40

0.10 ± 0.35

0.11 ± 0.43

0.649

 1998–2007

   

0.320

  Decreased

12.3

11.8

12.7

 

  Constant

35.5

34.4

36.7

 

  Increased

52.2

53.8

50.6

 

Candy store

 1998

0.04 ± 0.30

0.03 ± 0.24

0.05 ± 0.34

0.098

 2007

0.04 ± 0.28

0.03 ± 0.22

0.05 ± 0.32

0.100

 1998–2007

   

0.166

  Decreased

13.8

14.7

12.8

 

  Constant

54.8

55.6

54.1

 

  Increased

31.4

29.7

33.1

 

Fruit/vegetable market

 1998

0.03 ± 0.22

0.03 ± 0.18

0.04 ± 0.25

0.155

 2007

0.05 ± 0.27

0.04 ± 0.20

0.06 ± 0.31

0.090

 1998–2007

   

0.305

  Decreased

5.9

6.3

5.4

 

  Constant

65.9

66.7

65.2

 

  Increased

28.2

27.0

29.4

 

Meat/fish market

 1998

0.08 ± 0.40

0.07 ± 0.35

0.09 ± 0.43

0.230

 2007

0.09 ± 0.45

0.08 ± 0.35

0.11 ± 0.51

0.207

 1998–2007

   

0.509

  Decreased

12.0

12.4

11.6

 

  Constant

52.3

51.0

53.6

 

  Increased

35.7

36.6

34.8

 

Beverage store

 1998

0.05 ± 0.21

0.05 ± 0.21

0.05 ± 0.21

0.768

 2007

0.11 ± 0.44

0.11 ± 0.45

0.11 ± 0.38

0.978

 1998–2007

   

0.861

  Decreased

4.7

5.0

4.5

 

  Constant

33.7

33.5

33.8

 

  Increased

61.6

61.5

61.7

 
  1. Sampling weights were used in the analyses
  2. ap values tested the differences in each variable between genders and were based on χ2 tests for categorical variables or t tests for continuous variables