From: Increase of catastrophic health expenditure while it does not have socio-economic anymore; finding from a district on Tehran after recent extensive health sector reform
Year of study
Concentration index
Confidence interval
Upper limit
Lower limit
2003
0.17-
0.3-
0.04-
2008
0.19-
0.06-
0.32-
2015
0.017-
0.086-
0.051