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Table 1 Summary statistics

From: Calorie labeling and consumer estimation of calories purchased

 

All

Philadelphia

Baltimore

Significance tests

Pre-

Post-

Pre-

Post-

Pre-

Post-

Pre vs. Post

Mean

SD

Mean

SD

Mean

SD

Mean

SD

Mean

SD

Philadelphia

Baltimore

N

1835

 

470

 

534

 

394

 

437

     

Mean

              

Age

39.1

13.9

39.7

14.1

37.4

14.4

40.8

13.5

38.9

13.4

  

*

*

Number of calories purchased, actual

951

685

987

757

927

704

974

696

923

559

    

Percent

              

Gender

              

  Male

55.2

49.8

58.3

49.4

52.1

50.0

51.5

50.0

58.8

49.3

*

*

*

 

  Female

37.4

48.4

37.5

48.5

45.5

49.8

28.9

45.4

35.2

47.8

**

**

**

 

  Missing

7.4

26.2

4.3

20.2

2.4

15.4

19.5

39.7

6.0

23.7

***

**

 

***

Race/Ethnicity

              

  Black

70.1

45.8

60.4

49.0

70.8

45.5

73.9

44.0

76.4

42.5

***

*

***

 

  Caucasian

20.8

40.6

23.0

42.1

17.8

38.3

22.1

41.5

21.1

40.8

  

*

 

  Other/Missing

4.1

19.8

6.0

23.7

5.2

22.3

3.3

17.9

1.4

11.7

 

**

  

Education

              

  High school or less

60.9

48.8

54.7

49.8

63.3

48.2

62.2

48.6

63.4

48.2

*

 

**

 

  Some college or AA

25.2

43.4

29.8

45.8

23.0

42.1

22.6

41.9

25.2

43.5

*

 

*

 

  BA or above

10.6

30.8

11.7

32.2

8.1

27.2

12.4

33.0

10.8

31.0

    

  Missing

3.4

18.1

3.8

19.2

5.6

23.1

2.8

16.5

0.7

8.3

 

***

 

*

Type of order

              

  To go

67.6

46.8

60.6

48.9

70.4

45.7

68.0

46.7

71.4

45.2

*

 

**

 

  Eat in

26.3

44.1

25.1

43.4

24.2

42.8

28.4

45.2

28.4

45.1

    

  Missing

6.1

23.9

14.3

35.0

5.4

22.7

3.6

18.5

0.2

4.8

***

***

***

***

Number of times usually eat in big chain fast food restaurant per week

         

  ≤1

56.4

49.6

62.3

48.5

64.0

48.0

49.0

50.1

47.1

50.0

***

***

  

  2

15.8

36.4

12.3

32.9

12.7

33.4

17.5

38.1

21.5

41.1

*

***

  

  ≥3

34.4

47.5

26.4

44.1

30.7

46.2

39.6

49.0

42.8

49.5

***

***

  

  Missing

3.1

17.4

7.7

26.6

2.4

15.4

1.5

12.3

0.5

6.8

***

*

***

 

Number of items purchased

              

  1

23.2

42.2

18.5

38.9

25.7

43.7

25.9

43.9

22.7

41.9

**

 

**

 

  2

20.0

40.0

21.5

41.1

18.9

39.2

19.0

39.3

20.4

40.3

    

  3

31.6

46.5

31.7

46.6

32.2

46.8

31.0

46.3

31.4

46.4

    

  4

11.3

31.7

10.2

30.3

9.2

28.9

12.2

32.8

14.4

35.2

 

*

  

  ≥5

14.0

34.7

18.1

38.5

14.0

34.8

11.9

32.5

11.2

31.6

*

   

Purchased combination meal

24.5

43.0

21.5

41.1

25.7

43.7

25.4

43.6

25.6

43.7

    

  Restaurant

              

  McDonald’s

64.2

48.0

66.2

47.4

70.2

45.8

61.7

48.7

57.0

49.6

 

***

  

  Burger King

35.8

48.0

33.8

47.4

29.8

45.8

38.3

48.7

43.0

49.6

 

***

  
  1. ***P < 0.001, **P < 0.01, *P < 0.05.