Distribution of physical accessibility determinants and level of delivery care, and crude associations with facility birth in rural Zambia.

BEmOC(−1), basic emergency obstetric care that may lack assisted vaginal delivery; BEmOC−2 and −4, facilities lacking two or four of the BEmOC signal functions, respectively; CEmOC(−1), comprehensive emergency obstetric care that may lack assisted vaginal delivery. For details on the classification, see Methods.aFrom model adjusting for clustering by sampling cluster and by mother; p-values from Wald tests.bVariable presented in categories for ease of presentation, continuous variable used in regression.