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. 2021 Sep 3;13:791–800. doi: 10.2147/CLEP.S311813

Table 3.

Bivariate Indices of Inequality in Quality of Care

2004–08 2009–14 Absolute Difference 95% CI Relative Difference
Income related
N 47,762 52,960
ACII 0.068 0.043 −0.025 (−0.032; −0.017) −36%
ARCII 0.025 0.015 −0.011 (−0.014; −0.008) −43%
SRCII* 0.050 0.042 −0.009 (−0.014; −0.003) −17%
SII 8.279 5.214 −3.065 (−4.650; −1.479) −37%
ARII 1.165 1.091 −0.074 −6%
SRII* 0.740 0.779 0.039 5%
Education related
N 43,841 53,671
ACII 0.024 0.022 −0.001 (−0.008; 0.006) −5%
ARCII 0.009 0.008 −0.001 (−0.037; 0.001) −14%
SRCII* 0.018 0.022 0.004 (−0.009; 0.002) 21%
SII 1.334 4.803 3.469 (−1.701; 8.639) 260%
ARII 1.066 1.055 −0.011 −1%
SRII* 0.876 0.856 −0.020 −2%

Note: *Negative operational signs are ignored.

Abbreviations: CI, confidence interval; ACII, absolute concentration index; ARCII, attainment relative concentration index; SRCII, shortfall relative concentration index; SII, slope index of inequality (rank income/100); ARII, attainment relative index of inequality; SRII, shortfall relative index of inequality.