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Table 7 Decomposition analysis of concentration index of CHE in 2008 and 2015

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

VariablesCoefficientMeanElasticityConcentration index (CI)Contribution to CI %
2008201520082015200820152008201520082015
Economic status        83%220.2%
 Quintile 1 (poorest)1.402−0.3850.2160.194−0.115−0.055−0.7850.823  
 Quintile 21.282− 0.8200.1080.167− 0.053− 0.086− 0.460.466  
 Quintile 31.026−0.1170.2800.269−0.109− 0.021− 0.071−0.059  
 Quintile 40.6890.0520.1520.157−0.0390.0060.362−0.461  
Lack of Insurance0.8360.4720.2630.848−0.0840.268−0.0950.0316%−21.4%
Female household head0.5730.3780.0760.130−0.0160.033−0.3890.1025%−8.5%
Having member ≥65 in Household0.5670.1290.2040.277− 0.0440.024− 0.099−0.0593%3.6%
Having member ≤5 in Household0.3740.2610.1790.117−0.0250.020−0.0680.0321%−1.6%
Household size        8%−75.1%
 3–6 members−0.6040.5600.7720.7130.1770.2680.069−0.080  
 ≥ 7 members−0.0781.0730.1860.0370.0050.180−0.3570.284  
Having disabled member in household0.335−0.2540.1740.110− 0.022−0.019−0.3570.0222%1.1%
Dentistry service usage1.5890.3290.1540.372−0.0920.0820.1020.038−7%−7.9%
Inpatient service usage2.4970.4930.0390.212−0.0360.070−0.0320.0131%−2.3%
Outpatient service usage1.7890.0030.78232.40−0.5310.0600.0050.106−2%−16.1%
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