<p>We conducted an analytical cross-sectional study of 508 mothers of children aged 15-23 months. Stratified three-stage sampling identified health areas, villages and mothers of children. We tested the association between vaccination and its likely determinants using multiple logistic regression at a significance level of 0.05 and 95% confidence interval (95% CI) using Epi-info 7.2.2 and Medcalc.</p>