Table 1.

Characteristics of the study participants (n = 1,223).

Variable	n	(%)
Gender
male	682	(55.8)
female	541	(44.2)
Age (years)
<50	694	(56.7)
≥50	529	(43.3)
Heart disease
No	1201	(98.2)
Yes	22	(1.8)
Diabetes
No	1182	(96.6)
Yes	41	(3.4)
Hypertension
No	1101	(90.0)
Yes	122	(10.0)
Hepatitis
No	1100	(89.9)
Yes	123	(10.1)