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Table 3 Regression model. Parameter estimates and their standard errors for the regression model of logarithm of maternal mortality ratio on selected country-specific demographic and health indicators.

From: National estimates for maternal mortality: an analysis based on the WHO systematic review of maternal mortality and morbidity

Variable Parameter Estimate Standard Error p-value
Intercept 5.465 0.621 <.0001
Region: Africa 1.329 0.229 <.0001
Region: Asia 0.748 0.174 <.0001
Region: Latin America & Caribbean 1.382 0.163 <.0001
Skilled birth attendant -0.016 0.004 <.0001
Infant mortality rate 0.013 0.004 0.0003
Health expenditure per capita (log) -0.272 0.075 0.0004
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