Table 1.

Study population by gender, age, education and study site

	Enumerated	Examined	Response rate
Gender
Male	897 (38.0)	814 (37.8)	90.8
Female	1,463 (62.0)	1,342 (62.2)	91.7
Age
35–49	973 (41.2)	861 (39.9)	88.5
50–64	825 (35.0)	764 (35.4)	92.6
≥ 65	562 (23.8)	531 (24.6)	94.5
Education
None	1,524 (64.6)	1,395 (64.7)	91.5
<Primary	203 (8.6)	179 (8.3)	88.2
Primary	290 (12.3)	262 (12.2)	90.3
Secondary	85 (3.6)	79 (3.7)	92.9
≥ High School	232 (9.8)	217 (10.1)	93.5
Missing	26 (1.1)	24 (1.1)	92.3
All	2,360 (100.0)	2,156 (100.0)	91.4

Data are given as number (percentage) of participants.