Fig. 1From: Andersen’s utilization model for cataract surgical rate and empirical evidence from economically-developing areasAndersen’s healthcare utilization model for Cataract Surgery Rate in sub-Saharan Africa. CSR, Cataract Surgery Rate; GDP/P, Gross Domestic Product per Capita; Numbers out of brackets stand for the standardized coefficients between the two ends of the wire; Numbers in brackets stand for the 95% confidence intervals of the standardized coefficientsBack to article page