Table 1.

Basic demographic data of the participants

Variable	No. (%)
Age (yr)
<30	0 (0)
30–39	9 (1)
40–49	130 (14)
50–59	274 (30)
60–69	352 (38)
70–79	142 (15)
≥80	18 (2)
Marital status
Single	100 (11)
Married	684 (74)
Separated	54 (6)
Widow	87 (9)
Educational attainment
None	42 (5)
Primary	82 (9)
Secondary	408 (44)
College	364 (39)
Postgraduate	16 (2)
Master	10 (1)
Doctorate	3 (0)
Postdoctorate	0 (0)