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Table 2 Distribution of cardiovascular risk factors

From: Cardiovascular Disease Risk of Bus Drivers in a City of Korea

  

BUS drivers (443)

   

KNHANES*

   
    

Group A (696)†

  

Group B (221)‡

  
  

%

95% CI

%

95% CI

p-value*

%

95% CI

p-value*

Age

< 50

28.4

(24.2-32.8)

34.8

(28.4-42.5)

0.404

34.2

(24.3-37.7)

0.552

 

50-59

59.1

(54.5-63.7)

57.5

(52.8-62.0)

 

56.9

(48.5-65.0)

 
 

≥ 60

12.5

(9.7-15.5)

7.7

(6.2-9.6)

 

8.9

(5.6-14.0)

 

Smoking

Non

14.8

(11.8-18.0)

14.3

(11.7-17.4)

0.712

7.0

(3.8-12.4)

0.151

 

Ex

43.4

(38.8-48.0)

38.3

(33.6-43.3)

 

41.8

(35.2-48.7)

 
 

Current

41.8

(37.4-46.4)

47.4

(42.9-51.9)

 

51.2

(44.8-57.6)

 

Drinking

No/proper

74.6

(70.2-78.8)

76.1

(71.7-80.0)

0.869

75.7

(67.7-82.2)

0.920

 

High risk

25.4

(21.2-29.8)

23.9

(20.0-28.3)

 

24.3

(17.8-32.3)

 

Exercise

Yes

23.3

(19.4-27.5)

33.3

(29.4-37.5)

0.116

34.5

(27.6-42.0)

0.080

 

No

76.7

(72.5-80.6)

66.7

(62.5-70.6)

 

65.5

(58.0-72.4)

 

BMI

< 25.0

46.7

(41.8-51.3)

60.5

(56.2-64.6)

0.050

61.8

(54.3-68.8)

0.032

 

≥ 25.0

53.3

(48.7-58.2)

39.5

(35.4-43.8)

 

38.2

(31.2-45.7)

 

WC

< 90

59.1

(54.3-64.0)

72.8

(68.8-76.4)

0.057

76.4

(68.8-82.5)

0.013

 

≥ 90

40.9

(36.0-45.7)

27.2

(23.6-31.2)

 

23.6

(17.5-31.2)

 

BP

Normal

8.8

(6.2-11.5)

40.8

(35.9-45.9)

0.000

43.8

(35.7-52.2)

0.000

 

Pre HTN

37.9

(33.5-42.7)

41.6

(36.7-46.7)

 

36.5

(28.8-44.9)

 
 

HTN

53.3

(48.5-57.7)

17.6

(14.2-21.5)

 

19.7

(14.3-26.6)

 

ISH

No

67.4

(63.3-71.8)

96.2

(94.1-97.6)

0.000

97.2

(94.6-98.6)

0.000

 

Yes

32.6

(28.2-36.7)

3.8

(2.4-5.9)

 

2.8

(1.4-5.4)

 

Glucose

< 110

73.2

(69.1-77.4)

78.9

(75.1-82.3)

0.344

82.9

(76.7-87.8)

0.097

 

≥ 110

26.8

(22.6-30.9)

21.1

(17.7-24.9)

 

17.1

(12.2-23.3)

 

TC

< 200

61.4

(56.8-65.8)

57.3

(52.8-61.7)

0.822

60.5

(52.2-68.2)

0.985

 

200-239

28.9

(24.2-33.3)

33.1

(28.8-37.8)

 

30.2

(22.9-38.7)

 
 

≥ 240

9.7

(6.9-12.5)

9.6

(7.2-12.6)

 

9.3

(5.7-14.7)

 

LDL-C

< 130

74.6

(70.7-78.5)

69.8

(65.2-74.0)

0.537

68.8

(54.6-78.9)

0.285

 

130-159

19.6

(15.9-23.3)

20.3

(17.0-24.0)

 

19.8

(11.9-31.2)

 
 

≥160

5.8

(3.5-8.1)

9.9

(7.2-13.6)

 

12.2

(5.9-23.7)

 

TG

< 150

35.8

(31.2-40.6)

54.4

(49.7-58.9)

0.015

47.8

(39.5-56.2)

0.190

 

150-199

19.6

(15.9-23.3)

19.1

(16.0-22.7)

 

18.7

(13.3-25.7)

 
 

≥ 200

44.6

(40.0-49.4)

26.5

(23.1-30.3)

 

33.5

(25.9-42.1)

 

HDL-C

≥ 60

9.0

(6.2-11.8)

17.9

(14.4-21.9)

0.020

18.5

(12.6-26.2)

0.139

 

59-40

54.7

(50.1-59.6)

61.6

(56.9-66.1)

 

51.2

(43.4-59.0)

 
 

< 40

36.3

(31.9-40.4)

20.5

(17.0-24.6)

 

30.3

(24.1-37.3)

 

MS

No

50.1

(45.3-55.0)

77.4

(73.8-80.6)

0.000

76.2

(68.5-82.5)

0.000

 

Yes

49.9

(45.0-54.7)

22.6

(19.4-26.2)

 

23.8

(17.5-31.5)

 

CHD risk equivalent§

No

82.9

(79.2-86.4)

89.9

(86.8-92.3)

0.148

88.4

(82.1-92.8)

0.267

Yes

17.1

(13.6-20.8)

10.1

(7.7-13.2)

 

11.6

(7.2-17.9)

 

CV event risk∥

Low

45.7

(40.6-50.6)

71.1

(66.9-74.9)

 

67.6

(59.3-74.8)

 

Medium

41.6

(37.0-46.4)

25.1

(21.4-29.3)

0.001

29.5

(22.6-37.6)

0.004

 

High

12.7

(9.7-15.9)

3.8

(2.4-6.1)

 

2.9

(1.1-7.3)

 
  1. p-value were tested by chi-square test, 95% CI of frequency ratio by bootstrapping method.
  2. BMI (kg/m2): body mass index, WC (cm): waist circumference.
  3. BP: blood pressure, HTN: hypertension, ISH: isolated systolic hypertension, TC (mg/dl): total cholesterol, TG (mg/dl): triglyceride, LDL-C (mg/dl): low density lipoprotein cholesterol, HDL-C (mg/dl): high density lipoprotein cholesterol, MS: metabolic syndrome.
  4. *Weighted proportion of 2010’ Korean National Health and Nutrition Examination Survey.
  5. †Group A: All employer (weighted number 4,830,156; unweighted case 696).
  6. ‡Group B: Crafts and machine operators(weighted number 1,629,428; unweighted case 221).
  7. §CHD risk equivalent: >20% per 10-year of Framingham coronary heart disease risk score.
  8. ∥Cardiovascular disease event as stroke or myocardial infarction, High; both metabolic syndrome an CHD risk equivalent, Medium; one of the two, Low; neither metabolic syndrome nor CHD risk equivalent.
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Annals of Occupational and Environmental Medicine

ISSN: 2052-4374

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