Table 1. Covariates selected for the treatment-seeking models.

Stratification	Covariate	Transformation	Source
Any medical treatment	Proportion of pregnant women receiving any antenatal care from a skilled provider	square	IHME [13]
	Health expenditure per capita (USD)	log	IHME [13]
Public fraction	Percent of women giving birth in a health facility	-	IHME [13]
	Hospital beds per 1000 people	log	IHME [13]
	Urbanicity	-	IHME [13]