Association of Epoxide Hydrolase 2 Gene Arg287Gln with the Risk for Primary Hypertension in Chinese

Table 1

Baseline characteristics of study participants.

Characteristics	Cases (n = 782)	Controls (n = 458)
Age (years)	63.03 (10.91)	58.14 (10.54)	<0.001
Male gender	467 (59.72%)	269 (58.73%)	0.733
BMI (kg/m^2)	26.44 (3.50)	25.12 (3.51)	<0.001
SBP (mmHg)	137.71 (18.57)	127.97 (14.06)	<0.001
DBP (mmHg)	78.51 (10.99)	77.56 (8.79)	0.116
TC (mmol/L)	4.25 (1.28)	4.40 (1.20)	0.036
TG (mmol/L)	2.14 (1.33)	2.19 (1.47)	0.533
HDLC (mmol/L)	1.37 (1.11)	1.29 (1.03)	0.218
LDLC (mmol/L)	2.01 (1.01)	2.08 (1.00)	0.224
HCY (mmol/L)	13.81 (5.94)	11.86 (4.38)	<0.001

BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; TC, total cholesterol; TG, triglyceride; HDLC, high-density lipoprotein cholesterol; LDLC, low-density lipoprotein cholesterol; HCY, homocysteine. Data are expressed as mean (standard deviation) for continuous variables and number (percentage) for categorical variables.