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Figure 1 | BMC Public Health

Figure 1

From: Equity monitoring for social marketing: use of wealth quintiles and the concentration index for decision making in HIV prevention, family planning, and malaria programs

Figure 1

Distributions of survey respondents by wealth quintile and survey. The black horizontal line at 20% denotes the cut-off level for each quintile if wealth were distributed with perfect equity in the study population. Quintile distribution of the reference populations, the corresponding DHS dataset for each PSI survey, is evenly distributed; all quintiles represent 20% of the sample.

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