Table 1.

Clinical Characteristics of the Healthy Subjects and Patients with Essential Hypertension

Variable	Healthy subjects (n=28)	Hypertensive patients (n=28)
Body mass index (kg/m2)	23.6 ± 2.7	24.2 ± 2.8
Systolic blood pressure (mm Hg)	115.9 ± 10.3	158.2 ± 13.2*
Diastolic blood pressure (mm Hg)	69.1 ± 8.6	96.8 ± 10.1*
Heart rate (bpm)	68.6 ± 7.9	70.3 ± 8.8
Total cholesterol (mmol/L)	4.81 ± 0.69	4.98 ± 0.77
Triglycerides (mmol/L)	1.11 ± 0.38	1.17 ± 0.37
HDL cholesterol (mmol/L)	1.45 ± 0.31	1.42 ± 0.25
LDL cholesterol (mmol/L)	3.17 ± 0.57	3.36 ± 0.69
Glucose (mmol/L)	4.7 ± 0.4	4.9 ± 0.3
Insulin (pmol/L)	46.3 ± 17.1	43.7 ± 11.8
Creatinine (μmol/L)	81.1 ± 10.3	88.7 ± 16.4
Sodium (mmol/L)	140.1 ± 1.4	140.8 ± 1.6
Potassium (mmol/L)	4.2 ± 0.2	4.1 ± 0.2
Plasma renin activity (ng/mL/hr)	2.0 ± 1.5	1.6 ± 1.3
Smoker (%)	25	25

HDL indicates high density lipoprotein; LDL, low density lipoproteine.

^*P<.05 versus normotensive subjects. Without statistical significant differences for the rest parameters.