The associated factors are: Less than 25 years old (OR * = 2.885; 95% CI: 1.193 - 6.976), From 25 - 30 years old (OR * = 2.714, 95% CI: 1.064 - 6.921), Middle range of economic status (OR * = 2.461, 95% CI: 1.069 - 5.666).