Skip to main content

Table 8 Decomposition analysis of concentration index of catastrophic health care expenditure in 2009 and 2012

From: Does the new cooperative medical scheme reduce inequality in catastrophic health expenditure in rural China?

  Coefficient Mean Elasticity Concentration index (CI) Contribution to CI
2009 2012 2009 2012 2009 2012 2009 2012 2009 2012
Economic status (reference group = Quintile1)
 Quintile2 −0.089 −0.068 0.198 0.194 −0.066 −0.049 −0.392 −0.402 0.026 0.020
 Quintile3 −0.094 −0.162 0.198 0.204 −0.070 −0.123 0.008 0.000 −0.001 0.000
 Quintile4 −0.103 −0.165 0.198 0.194 −0.077 −0.12 0.408 0.402 −0.031 −0.048
 Quintile5 −0.071 −0.119 0.198 0.204 −0.053 −0.090 0.808 0.804 −0.043 −0.073
Household member ≥ 65 0.274* −0.009 0.359 0.370 0.368 −0.012 −0.067 −0.037 −0.025 0.000
Household member ≤ 5 0.172 0.010 0.244 0.222 0.157 0.008 −0.259 −0.192 −0.041 −0.002
Household head           
 Sex (male) −0.040 −0.107 0.947 0.935 −0.141 −0.373 −0.026 −0.025 0.004 0.009
 Education level (reference group = below primary school level)
  Junior middle school 0.152 −0.031 0.382 0.352 0.217 −0.040 −0.042 0.025 −0.009 −0.001
  Senior middle school and above −0.049 −0.059 0.076 0.074 −0.014 −0.016 0.398 −0.112 −0.006 0.002
 Occupation (farmer) −0.148 0.033 0.863 0.926 −0.478 0.115 0.006 0.001 −0.003 0.000
Household size (reference group = 1–3 members)
  ≥ 4 members −0.348** −0.145 0.580 0.676 −0.756 −0.366 −0.115 −0.092 0.087 0.034
Real reimbursement −0.067 −0.857** 0.179 0.331 −0.045 −1.055 −0.025 −0.028 0.001 0.030
Length of stay (reference group = fewer than 8 days)
 8–14 days −0.003 −0.050 0.267 0.287 −0.003 −0.053 0.070 −0.238 0.000 0.013
  ≥ 15 days 0.471** 0.221* 0.328 0.398 0.579 0.328 0.146 0.257 0.085 0.084
Inpatient institution (reference group = town level)
 County level 0.080 0.111 0.519 0.537 0.155 0.222 0.038 0.038 0.006 0.008
 County above 0.487** 0.365 0.183 0.213 0.334 0.290 0.038 0.183 0.013 0.053
Self-assessed health (reference group = worse)
 Normal −0.047 −0.035 0.305 0.324 −0.053 −0.042 −0.178 −0.040 0.009 0.002
 Better −0.089 −0.062 0.305 0.380 −0.102 −0.088 0.156 −0.089 −0.016 0.008
  1. *Statistically significant (P <0.05), **Highly statistically significant (P <0.01)