Table 2.
Distribution of cardiovascular risk factors
| |
|
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) |
p-value were tested by chi-square test, 95% CI of frequency ratio by bootstrapping method.
BMI (kg/m2): body mass index, WC (cm): waist circumference.
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.
*Weighted proportion of 2010’ Korean National Health and Nutrition Examination Survey.
†Group A: All employer (weighted number 4,830,156; unweighted case 696).
‡Group B: Crafts and machine operators(weighted number 1,629,428; unweighted case 221).
§CHD risk equivalent: >20% per 10-year of Framingham coronary heart disease risk score.
∥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.