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Correlation of the standardized asset-based proxy wealth index scores created using exploratory factor analysis with the principal components analysis (PCA) and the principal axis factoring (PAF) extraction methods in (a) rural (Wuyi village) and (b) peri-urban (Laogang village) settings of Hunan province, P.R. China. Lines vertical to the axes define the respective wealth quartiles of each index for rural (dashed) and peri-urban (dotted) settings, respectively.
