Statistical analysis
IBD
Sample characteristics for women visiting ANC and PNC, as well as those who delivered their babies in health care facilities, were examined using descriptive statistics (means and percentages). At the descriptive analysis level; frequencies, percentages, means, maximums, and minimums were calculated. These statistics provided measures and summaries of the sample and enabled a description of the basic features of the data. Pearson’s Chi-square (χ2) test was used to assess the association between the outcome variables (knowledge, attitude, and practice on the three aspects of safe motherhood) and independent variables (age, marital status, ethnicity, educational status, occupation status, radio/TV ownership, listen to radio, radio discussion, and influenced by radio discussion). T-tests were done to determine differences in mean outcomes of the dependent variables (knowledge score and practice) within the control and intervention arms of the study. This indicated any differences in knowledge and practices as a result of the arms of the study. The mean outcomes of the dependent variables were also compared before and after the intervention and also between controls and interventions. A statistical significance level of p < 0.05 was considered. The dichotomous nature of the outcome variables led to the use of binary logit models. The values ‘1’ and ‘0’ were used to denote outcomes such as yes/no for ANC visits of 4 and > 4. For example, the dependent variables ANC, IBD, and PNC each included two groups (four and more than four visits; institution and home delivery; PNC and no PNC). P-value < 0.05 with a 95% confidence level was used as a cutoff point to declare statistical significance and adjusted odds ratios were used to determine the strength of associations.