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. 2015 Oct 14;14:94. doi: 10.1186/s12939-015-0230-7

Table 2.

Aggregated measures of the distributive effect of total OOPP and OOPP categories

Total OOPP Prescription fees OTC pharmaceuticals Therapeutical aids Physician services
ATP I
Gini coefficient 0.245 - - - - -
Concentration index - 0.138 0.036 0.089 0.162 0.152
Kakwani index - −0.107 −0.209 −0.156 −0.083 −0.092
t = OOPP/ATP I 0.054 0.004 0.006 0.023 0.014
Reynolds–Smolensky index - −0.006 −0.001 −0.001 −0.002 −0.001
ATP II
Gini coefficient 0.538 - - - - -
Concentration index - 0.093 0.044 0.045 0.109 0.086
Kakwani index - −0.445 −0.494 −0.492 −0.429 −0.452
t = OOPP/ATP II - 0.121 0.008 0.013 0.052 0.031
Reynolds–Smolensky index - −0.061 −0.004 −0.006 −0.024 −0.015

ATP I ability to pay indicated by household net income, ATP II ability to pay indicated by household net income minus benefits from the income maintenance program, OOPP out-of-pocket payment, OTC over the counter, t share of OOPP on ATP I respectively ATP II