Table 1.

The demographic information of the subjects.

Items	Demographic information
Gender
Males (case (%))	141 (52.6%)
Females (case (%))	127 (47.4%)
Age (years)	62.5 ± 11.1
Duration of hypertension (years)	10.5 ± 10.3
Systolic blood pressure (mmHg)	144.5 ± 21.1
Diastolic blood pressure (mmHg)	81.4 ± 15.1
Essential hypertension without cardiovascular and cerebrovascular infarctions (case (%))	182 (67.9%)
Essential hypertension complicated with acute cardiovascular and cerebrovascular infarctions (case (%))	48 (17.9%)
Essential hypertension complicated with obsolete cardiovascular and cerebrovascular infarctions (case (%))	38 (14.2%)