Additional file 2.

Concentration curves and indices. Depicts the concentration curves for catastrophic healthcare expenditure at various catastrophic thresholds. It also provides values for concentration index for various catastrophic thresholds. Both, the concentration curve being above the line of equality, as well as the negative values for concentration index, suggest that the financial catastrophe is concentrated among the poor households.

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Bhojani et al. BMC Public Health 2012 12:990   doi:10.1186/1471-2458-12-990