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Table 3 Odds ratios for high 10-year risk of CHD and stroke

From: The effect of long working hours on 10-year risk of coronary heart disease and stroke in the Korean population: the Korea National Health and Nutrition Examination Survey (KNHANES), 2007 to 2013

Weekly working hours

  

Estimated 10-year CHD risk

≥90th percentile of estimated risk of CHD

Estimated 10-year stroke risk

≥90th percentile of estimated risk of stroke

n

%

mean

SD

n

%

aORa

95% CI

mean

SD

n

%

aORa

95% CI

Men

  < 30

460

6.1

1.59

14.7

89

19.4

1.75

1.28

2.40

1.59

14.7

97

21.1

1.77

1.29

2.42

 30–40

649

8.6

1.25

19.3

72

11.1

1.04

0.76

1.42

1.25

19.3

86

13.3

1.24

0.91

1.68

 40

1406

18.6

1.05

5.4

122

8.7

1.00

Reference

1.05

5.4

115

8.18

8.2

Reference

 40–50

1567

20.7

1.03

13.2

137

8.7

0.89

0.69

1.16

1.03

13.2

130

8.3

0.85

0.65

1.11

 50–60

1587

21.0

1.01

36.0

137

8.6

0.87

0.67

1.12

1.01

36

127

8.0

0.79

0.60

1.03

 60–70

1009

13.3

1.06

46.0

88

8.7

0.83

0.62

1.11

1.06

46

93

9.2

0.87

0.65

1.17

 70–80

555

7.3

1.13

14.4

52

9.4

0.83

0.59

1.19

1.13

14.4

63

11.4

0.99

0.70

1.39

 .39

332

4.4

1.37

4.9

59

17.8

1.76

1.23

2.52

1.37

4.86

45

13.6

1.23

0.83

1.82

 Total

7565

100.0

1.11

21.8

756

10.0

   

1.97

15

756

10.0

   

p trend

      

0.43

    

0.94

Women

  < 30

1357

21.8

0.26

18.2

136

10.0

1.11

0.81

1.54

1.45

10.2

141

10.4

1.41

1.00

1.99

 30–40

974

15.6

0.26

122.0

95

9.8

1.08

0.77

1.53

1.42

6.2

96

9.9

1.34

0.94

1.93

 40

981

15.7

0.19

16.8

65

6.6

1.00

Reference

1.14

26.5

53

5.40

5.4

Reference

 40–50

1085

17.4

0.23

106.0

88

8.1

1.01

0.71

1.43

1.33

28.8

84

7.7

1.18

0.82

1.71

 50–60

757

12.1

0.28

24.6

81

10.7

1.06

0.74

1.51

1.59

10

91

12.0

1.49

1.03

2.16

 60–70

488

7.8

0.29

14.5

61

12.5

1.09

0.74

1.61

1.65

10.1

60

12.3

1.31

0.87

1.98

 70–80

367

5.9

0.33

8.5

58

15.8

1.32

0.88

1.97

1.81

2.4

54

14.7

1.47

0.96

2.25

 .25

225

3.6

0.4

37.3

39

17.3

1.63

1.03

2.58

2.06

7.5

44

19.6

2.32

1.46

3.69

 Total

6234

100.0

0.26

0.3

623

10.0

   

1.45

1.4

623

10.0

   

p trend

      

0.06

    

0.01

  1. CHD coronary heart disease
  2. aadjusted for household income, employment condition, occupation, work shift, and weekly working hour; values displaying significant differences are given in bold (p-value ≤ 0.05)
  3. *p for trend was tested after excluding participants with <40 weekly working hours