Table 3. Age-stratified multivariate logistic regression for the association between HCV antibody prevalence as dependent variable and question 601 (Q601) “Have you ever heard of hepatitis C illness?” controlling for sex, educational attainment and place of residence.

Independent variables	Odds Ratio	95% Confidence interval	p-value
Among adults aged 30 years and below
Q601 (no)	1.02	0.74–1.41	0.900
Sex (male)	1.56	1.20–2.03	0.001
Educational attainment (higher education)	1.00
Secondary education	1.45	0.95–2.21	0.088
Primary education	2.30	1.32–4.02	0.003
No education	3.14	1.87–5.27	0.000
Place of residence (rural)	1.80	1.29–2.52	0.001
Among adults above 30 years of age
Q601 (no)	0.99	0.81–1.21	0.950
Sex (male)	1.81	1.56–2.09	0.000
Educational attainment (higher education)	1.00
Secondary education	1.17	0.90–1.52	0.246
Primary education	1.59	1.20–2.11	0.001
No education	1.87	1.42–2.46	0.000
Place of residence (rural)	1.92	1.63–2.26	0.000