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Table 1 Characteristics of patients with CHD and healthy individuals

From: Novel polymorphisms in CYP4A22 associated with susceptibility to coronary heart disease

Characteristics

Case

Control

p

n = 481

n = 481

Age (years)

Mean ± SD

62.38 ± 0.46

61.22 ± 0.41

0.064 a

 

> 60

273 (56.8%)

274 (57.0%)

 
 

≤ 60

208 (43.2%)

207 (43.0%)

 

Gender

Male

320 (66.5%)

315 (65.5%)

0.785 b

 

Female

161 (33.5%)

166 (34.5%)

 

Smoking

Yes

252 (52.4%)

258 (53.6%)

0.747 b

 

No

229 (47.6%)

223 (46.4%)

 

Drinking

Yes

174 (36.2%)

192 (39.9%)

0.259 b

 

No

307 (63.8%)

289 (60.1%)

 

CHD complicated with diabetes

Yes

143 (29.7%)

-

-

 

No

338 (70.3%)

-

 

CHD complicated with hypertension

Yes

299 (62.6%)

-

-

 

No

182 (37.8%)

-

 

RBC

 

4.20 ± 0.97

4.81 ± 0.46

< 0.001 a

Hemoglobin

 

129.47 ± 28.53

147.29 ± 16.50

< 0.001 a

PLT

 

182.41 ± 75.09

213.36 ± 59.65

< 0.001 a

UC

 

300.78 ± 91.34

319.95 ± 78.24

< 0.001 a

TC

 

4.07 ± 1.05

4.76 ± 0.91

< 0.001 a

HDL

 

1.11 ± 0.26

1.17 ± 0.37

0.853 a

LDL

 

2.43 ± 0.95

2.61 ± 0.72

< 0.001 a

  1. CHD, coronary heart disease; SD, standard deviation;
  2. RBC, red blood cell count; PLT, platelet count; UC, uric acid; TC, total cholesterol; HDL, high density lipoprotein; LDL, low density lipoprotein
  3. a represents the p value calculated by the t-test;
  4. b represents the p value calculated by the chi-square test;
  5. p-value < 0.05’ represents statistical significance