Sociodemographic Variables  Frequency  Percentage (%)
Age groups
<20 year  51  5.0
20 ≤ 35 year  286  28.3
35 ≤ 50 year  342  33.8
50 ≤ 60  256  25.3
60 or more  77  7.6
Gender
Male  656  64.8
Females  356  34.6
Prefer not to say   0.6
Marital status
Widow  48  4.7
Single  172  17.0
Married  773  76.4
Divorced  19  1.9
Level of education
Illiterate  58  5.7
Read/write  94  9.3
Primary/secondary  238  23.5
High school or above  622  61.5
Existing chronic diseases  230  22.7
Type of chronic disease (n = 387) *
Diabetes mellitus  143  37
Cardiovascular diseases  164  42.4
Central nervous system disorders  4  1
Psychological/mental disorders  2  0.5
Immunocompromised travelers (sever-moderate)  5  1.3
Disabilities (visual, hearing, physical)  4  1
Others  65  16.8