Table 3.

Multinomial logistic regression showing predictors of knowledge level

Characteristics	Odds ratio (OR)	95% confidence interval
Age
< 30 30–39 40–49 ≥ 50	Ref 0.6 2.2 0.7	Ref 0.2–1.9 0.5–9.5 0.2–0.8
Marital status
Single Married	Ref 1.7	Ref 0.6–4.6
Education
Less than high school High school graduate Collage Higher education	0.1 0.7 0.4 Ref	0.1–0.8 0.1–4.1 0.1–1.6 Ref
Work or study in the medical field
Yes No	Ref 7.9	Ref 3.2–19.2*

*P < 0.05