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Table 6 Measles immunisation rates per wealth group and Relative Index of Inequality (RII)

From: Measuring health inequality among children in developing countries: does the choice of the indicator of economic status matter?

   % children aged 12–23 months not immunised against measles   95% CI for RII
Country Wealth Index Poorest Second Middle Fourth Richest RII low up
Bolivia WB Index 59.5 59.2 54.3 47.3 33.6 3.15 2.02 4.93
  Index 1 58.6 62.6 51.0 48.0 33.3 3.30 2.10 5.18
  Index 2 59.9 60.9 53.9 43.9 35.4 3.43+ 2.18 5.41
  Index 3 60.5 59.8 54.5 44.0 35.4 3.46+ 2.18 5.48
Brazil WB Index 26.7 15.0 7.7 8.4 10.2 7.14 2.76 18.46
  Index 1 26.4 14.4 7.5 10.9 8.4 6.55 2.65 16.17
  Index 2 26.3 14.5 8.8 a 9.0 [5.87 +] 2.51 13.74
  Index 3 26.2 14.3 8.8 a 9.0 [5.98+] 2.54 14.06
Cameroon WB Index 58.0 59.7 56.5 39.2 23.5 7.02 3.81 12.94
  Index 1 60.5 62.8 53.1 33.1 27.0 8.71 + 4.51 16.82
  Index 2 60.5 61.8 49.6 40.1 27.4 [6.92] 3.72 12.86
  Index 3 a 62.0 48.9 44.3 27.3 [5.35+] 2.89 9.91
Chad WB Index 89.9 86.7 82.1 72.2 65.9 7.39 4.43 12.35
  Index 1 84.9 90.0 81.9 76.6 64.8 5.45 ++ 3.22 9.21
  Index 2 b 87.3 b 73.6 60.1 10.23 ++ 5.93 17.63
  Index 3 b 87.4 b 73.6 59.2 10.70 ++ 6.20 18.46
Indonesia WB Index 46.3 35.4 33.3 28.7 16.1 4.74 3.24 6.95
  Index 1 45.7 36.0 30.4 30.6 18.3 4.13 + 2.81 6.06
  Index 2 43.2 42.3 29.4 27.6 18.2 4.55 3.11 6.65
  Index 3 42.2 42.0 29.2 29.3 18.3 4.08 + 2.78 5.98
Kenya WB Index 41.8 33.8 18.5 20.5 15.4 6.13 3.43 10.95
  Index 1 39.7 35.5 20.6 20.5 15.3 6.02 3.39 10.66
  Index 2 34.5 43.7 22.7 28.8 17.5 [2.80++] 1.62 4.83
  Index 3 34.0 42.2 21.8 28.6 20.0 [2.35++] 1.36 4.08
Malawi WB Index 30.2 23.4 25.3 20.7 11.8 2.89 1.55 5.38
  Index 1 32.1 20.8 26.7 19.0 12.0 3.26 + 1.77 6.02
  Index 2 26.3 26.8 21.4 19.4 15.8 [2.37+] 1.22 4.61
  Index 3 26.3 26.8 a 18.7 17.6 [2.23++] 1.13 4.39
Pakistan WB Index 75.2 61.6 52.0 52.6 28.0 9.00 5.13 15.77
  Index 1 76.9 62.0 52.3 51.7 28.3 9.48 5.50 16.33
  Index 2 76.9 59.7 53.5 50.0 29.8 [9.96+] 5.45 18.21
  Index 3 66.5 b 60.9 48.5 30.0 [7.01+] 3.98 12.31
Tanzania WB Index 40.6 30.6 30.2 18.0 13.4 5.80 3.60 9.35
  Index 1 36.7 31.3 31.4 21.9 12.3 4.22 ++ 2.67 6.68
  Index 2 33.0 b 36.8 21.1 17.1 3.45 ++ 2.13 5.57
  Index 3 b 32.5 36.7 18.0 19.6 2.85 ++ 1.76 4.62
Uganda WB Index 53.8 58.0 42.1 45.6 28.4 3.49 2.29 5.31
  Index 1 50.5 51.5 48.2 49.9 27.8 2.47 ++ 1.64 3.73
  Index 2 54.4 46.7 48.9 46.1 34.0 2.18 ++ 1.45 3.28
  Index 3 54.4 46.7 47.9 47.1 34.0 2.11 ++ 1.40 3.18
  1. Notes: [] RII's in parentheses indicate that results may be an artefact due to combination of population heaping and a non-linear association of immunisation coverage with wealth; a rates are not shown due to small sample size (smaller then 50) referring to the denominator, i.e. children aged 12–23 months at the time of the survey. b empty cell due to heaping (see Table 2); + 10–30% change in RII compared to the WB index; ++ >30% change in RII compared to WB index