Table 1

Participant demographics by vegetarian status

Non-vegetarian (n = 1711)

Vegetarian (n = 106)

Test Statistic1

P value


Age (years, mean ± SE)

44.8 ± 0.4

41.5 ± 1.8

F = 3.63

0.057


Age Group

χ2 = 9.80

0.020

19 – 30 years

24.8%

38.1%

31 – 50 years

40.9%

31.4%

50 – 70 years

24.3%

20.0%

71+ years

10.1%

10.5%


Sex (% female)

49.2%

70.8%

χ2 = 18.58

<0.001


Marital status

χ2 = 17.55

0.001

Single

22.5%

35.2%

Married

62.7%

50.5%

Widowed

5.3%

10.5%

Divorced/separated

9.5%

3.8%


Education level

χ2 = 0.45

0.800

Secondary or less

33.3%

32.1%

Technical or some university

47.6%

46.2%

University graduate

19.1%

21.7%


Low income

22.8%

37.2%

χ2 = 9.28

0.002


Weight (kg, mean ± SE)

Men

83.1 ± 0.6

82.2 ± 3.0

F = 0.10

0.754

Women

67.9 ± 0.6

62.5 ± 1.8

F = 7.92

0.005


BMI (kg/m2, mean ± SE)

Men

26.7 ± 0.2

25.9 ± 0.8

F = 0.81

0.346

Women

25.7 ± 0.2

23.1 ± 0.7

F = 13.66

<0.001


BMI category – men

χ2 = 0.92

0.821

Underweight (< 18)

0.2%

0.0%

Normal weight (18-<25)

48.8%

51.6%

Overweight (≥ 25-<30)

31.6%

35.5%

Obese (≥ 30)

19.4%

12.9%


BMI category – women

χ2 = 16.34

0.001

Underweight (< 18)

1.1%

0.0%

Normal weight (18-<25)

59.6%

83.1%

Overweight (≥ 25-<30)

21.2%

12.7%

Obese (≥ 30)

18.1%

4.2%


Waist Circ. (cm, mean ± SE)

Men

91.7 ± 0.4

92.5 ± 2.3

F = 0.11

0.740

Women

79.8 ± 0.5

75.0 ± 1.5

F = 9.66

0.002


Health Condition – Men (% yes)

Diabetes

5.5

3.2

χ2 = 0.31

0.580

Heart disease

6.1

19.4

χ2 = 8.59

0.003

Stroke

0.8

3.2

χ2 = 1.99

0.158

High blood pressure

11.6

6.5

χ2 = 0.79

0.375

High cholesterol

14.7

9.7

χ2 = 0.61

0.434

Cancer

4.5

6.5

χ2 = 0.27

0.606

Osteoporosis

0.7

0.0

χ2 = 0.22

0.643

None of the above

70.9

63.3

χ2 = 0.81

0.370


Health Condition – Women (% yes)

Diabetes

4.9

1.3

χ2 = 1.97

0.160

Heart disease

3.7

4.0

χ2 = 0.02

0.889

Stroke

1.9

0.0

χ2 = 1.45

0.228

High blood pressure

15.3

6.7

χ2 = 4.15

0.042

High cholesterol

11.3

6.8

χ2 = 1.44

0.230

Cancer

8.3

1.3

χ2 = 4.70

0.030

Osteoporosis

6.1

8.0

χ2 = 0.44

0.506

None of the above

67.7

78.4

χ2 = 3.62

0.057


1. Statistical analysis consisted of ANOVA (vegetarian versus non-vegetarian, with age as a covariate) for continuous variables. Chi-square analysis was used for categorical variables.

Bedford and Barr International Journal of Behavioral Nutrition and Physical Activity 2005 2:4   doi:10.1186/1479-5868-2-4

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