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Proportion of households within each proxy wealth quartile that are in the rural (Wuyi village) (blue) and peri-urban (Laogang village) (green) settings of Hunan province, P.R. China, respectively. Quartiles represent (a) most poor (n = 127); (b) below average (n = 126); (c) above average (n = 126); and (d) most wealthy (n = 125) categories for pooled data from both villages.
