Date of Conferral
North West Nigeria has the lowest vaccination rate of the geopolitical regions of the country. The purpose of this cross-sectional study was to examine associations between the parents'/caregivers' biological, cultural, and socioeconomic factors and the completion or noncompletion of routine immunization schedules. Andersen's behavioral model provided the framework for the study. Data were obtained from the 2013 National Demographic Health Survey. Descriptive statistics were calculated for all variables. Chi-square tests were used for categorical predictor variables, simple logistic regression models were used for the age variable, and multiple linear regression models were used for the biological, cultural, and socioeconomic variables to assess the relative importance of factors within each category. Findings indicated a statistically significant association between 4 factors (education, wealth index, religious affiliation, and cost of healthcare) and completion of immunization schedules. Findings may be used to improve the likelihood of immunization of children in North West Nigeria and reduce the levels of childhood morbidity and mortality. Policy makers and immunization programmers can strengthen social services such as women's education, income generation, especially in the agricultural sector and other culturally sensitive interventions with community collaboration to bring the required social change.