From: The effects of geographical accessibility to health facilities on antenatal care and delivery services utilization in Benin: a cross-sectional study
BDHS 2017/2018
BDHS 2011/2012
Primary Sampling Units (clusters)
555
750
Enumeration areas
12,633
7352
Households per cluster
26
24
Households surveyed
14,156
17,422
Women surveyed
15,928
16,599