Effectiveness of checklist-based box system intervention (CBBSI) versus routine care on improving postnatal care utilization in Northwest Ethiopia: a cluster randomized controlled trial

Mothers who received CBBSI were more likely to receive three postnatal visits compared to their counterparts. The implementation of this trial can be boosted by minimizing practical level challenges: improving documentation at the health post level, uninterrupted supply of necessary materials, improving the knowledge and skill of health extension workers, and strengthening the linkage between primary health care units.