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. 2022 Jun 22;27(3):180–189. doi: 10.1177/13558196221079160

Table 2.

Income-related inequalities in healthcare utilization: rank- and level-dependent concentration indices. Paraguayan Permanent Household Survey 1999 to 2018.

Paraguayan Permanent Household Survey (n) Rank-based concentration index Level-based concentration index
Estimate (95%CI) Change a (95%CI) Estimate (95%CI) Change a (95%CI)
1999 0.209 (0.164, 0.253) 0.076 (−0.029, 0.182)
2000–01 0.216 (0.169, 0.263) 0.007 (−0.057, 0.071) 0.086 (0.015, 0.157) 0.009 (−0.117, 0.136)
2003 0.193 (0.156, 0.229) −0.016 (−0.073, 0.041) 0.088 (0.037, 0.139) 0.011 (−0.106, 0.128)
2004 0.144 (0.106, 0.181) −0.065 (−0.124, −0.007) 0.033 (−0.032, 0.097) −0.044 (−0.167, 0.079)
2005 0.198 (0.150, 0.247) −0.010 (−0.077, 0.056) 0.066 (0.015, 0.117) −0.010 (−0.127, 0.107)
2006 0.155 (0.093, 0.216) −0.054 (−0.129, 0.021) 0.070 (0.034, 0.105) −0.007 (−0.118, 0.104)
2007 0.199 (0.145, 0.253) −0.010 (−0.080, 0.061) 0.090 (0.024, 0.155) 0.013 (−0.111, 0.137)
2008 0.180 (0.128, 0.232) −0.029 (−0.098, 0.040) 0.049 (0.025, 0.073) −0.027 (−0.135, 0.081)
2009 0.177 (0.131, 0.223) −0.032 (−0.095, 0.032) 0.052 (0.029, 0.075) −0.024 (−0.132, 0.083)
2010 0.056 (0.008, 0.103) −0.153 (−0.218, −0.089) 0.018 (−0.008, 0.044) −0.058 (−0.167, 0.050)
2012 0.095 (0.052, 0.137) −0.114 (−0.175, −0.053) 0.044 (−0.002, 0.089) −0.033 (−0.147, 0.082)
2013 0.108 (0.061, 0.154) −0.101 (−0.165, −0.037) 0.032 (−0.002, 0.066) −0.044 (−0.155, 0.067)
2014 0.044 (0.002, 0.085) −0.165 (−0.226, −0.104) 0.021 (−0.006, 0.047) −0.056 (−0.164, 0.053)
2015 0.028 (−0.012, 0.068) −0.181 (−0.241, −0.121) 0.008 (−0.011, 0.027) −0.069 (−0.176, 0.038)
2016 0.043 (0.009, 0.078) −0.166 (−0.222, −0.110) 0.016 (−0.001, 0.033) −0.060 (−0.167, 0.047)
2017 0.038 (0.003, 0.073) −0.171 (−0.228, −0.115) 0.018 (0.001, 0.036) −0.058 (−0.165, 0.049)
2018 0.032 (−0.01, 0.075) −0.177 (−0.238, −0.115) 0.024 (0.002, 0.045) −0.052 (−0.160, 0.055)
Mean concentration index 0.124 0.047

CI: confidence interval

aUnit change in comparison to baseline (year 1999).