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Table 1 General characteristics of study participants based on cases and controls as well as across different categories of egg consumption

From: A case–control study on egg consumption and risk of stroke among Iranian population

 

Cases

(n = 195)

Controls

(n = 195)

P a

Age (years)

67.9 ± 1.0

61.5 ± 0.8

<0.001

Weight (kg)

69.5 ± 0.9

72.4 ± 1.1

0.05

BMI (kg/m2)

25.2 ± 0.3

28.4 ± 1.0

0.01

Male (%)

60

47

0.01

Current smokers (%)

14

6

0.01

Physical activity (MET-min/day)

4766 ± 55.5

3951 ± 49.1

0.43

Obesityb (%)

11

29

<0.001

 

Categories of egg consumption (egg/week)

<1

1–2

>2

P c

Controls (n = 195)

 Numbers

81

44

70

 

 Age (years)

64.3 ± 10.6

62.0 ± 11.7

58.0 ± 8.7

0.01

 Weight (kg)

73.4 ± 16.2

70.0 ± 15.8

69.0 ± 11.5

0.03

 BMI (kg/m2)

30.0 ± 5.2

29.0 ± 6.0

26.2 ± 5.0

0.23

 Male (%)

43.2%

47.7%

50.0%

0.70

 Physical activity (MET-min/day)

2405.0 ± 5050.2

4181.0 ± 10058.7

5597.7 ± 12655.0

0.12

 Obesityb (%)

32.1%

36.4%

21.4%

0.18

Cases (n = 195)

 Numbers

117

46

32

 

 Age (years)

69.3 ± 13.0

65.2 ± 14.7

68.0 ± 13.3

0.22

 Weight (kg)

70.0 ± 13.8

69.3 ± 11.2

68.9 ± 13.3

0.91

 BMI (kg/m2)

25.6 ± 4.4

25.2 ± 3.7

24.3 ± 4.8

0.43

 Male (%)

55.6%

60.0%

77.4%

0.09

 Physical activity (MET-min/day)

3246.0 ± 5858. 9

6584.8 ± 10670.8

7760.6 ± 20782.1

0.05

 Obesityb (%)

14.5%

8.9%

3.2%

0.18

  1. Data are means ± SD, unless indicated
  2. aObtained by the use of independent samples Student’s t test for continuous variables and chi-square for categorical variables
  3. bObesity, BMI ≥30 kg/m2
  4. cObtained by the use of ANOVA for continuous variables and chi-square for categorical variables