Table 5.
Under-5 mortality rates per wealth group and Relative Index of Inequality (RII)
| Under-5 mortality rates (per 1,000 live births) | 95% CI for RII | ||||||||
| Country | Wealth Index | Poorest | Second | Middle | Fourth | Richest | RII | low | up |
| Bolivia | WB Index | 135.1 | 106.0 | 93.4 | 39.8 | 32.2 | 6.30 | 4.76 | 8.34 |
| Index 1 | 134.6 | 103.0 | 96.0 | 45.0 | 28.8 | 6.04 | 4.58 | 7.97 | |
| Index 2 | 130.1 | 99.3 | 94.2 | 44.1 | 32.7 | 5.89 | 4.43 | 7.83 | |
| Index 3 | 126.2 | 120.7 | 92.4 | 46.4 | 32.7 | 5.29 + | 4.02 | 6.96 | |
| Brazil | WB Index | 89.4 | 52.5 | 36.2 | 26.1 | 29.3 | 6.41 | 4.02 | 10.22 |
| Index 1 | 88.3 | 49.4 | 36.6 | 27.2 | 33.0 | 5.55 + | 3.51 | 8.78 | |
| Index 2 | 89.8 | 47.7 | 38.7 | a | 27.0 | [5.60 +] | 3.66 | 8.58 | |
| Index 3 | 90.6 | 47.5 | 38.7 | a | 26.8 | [5.71 +] | 3.73 | 8.74 | |
| Cameroon | WB Index | 160.0 | 145.0 | 120.3 | 102.5 | 75.0 | 2.84 | 2.08 | 3.87 |
| Index 1 | 174.9 | 144.4 | 113.1 | 95.4 | 72.4 | 3.34 + | 2.41 | 4.61 | |
| Index 2 | 146.9 | 168.0 | 115.4 | 99.7 | 74.4 | 2.77 | 2.03 | 3.78 | |
| Index 3 | a | 140.2 | 130.6 | 78.3 | 75.8 | 2.78 | 2.02 | 3.82 | |
| Chad | WB Index | 151.8 | 207.2 | 175.2 | 165.0 | 155.0 | 1.08 | 0.91 | 1.28 |
| Index 1 | 146.8 | 186.4 | 232.5 | 154.4 | 153.7 | 1.00 ++ | 0.85 | 1.18 | |
| Index 2 | b | 184.6 | b | 157.3 | 133.9 | [1.71 ++] | 1.40 | 2.10 | |
| Index 3 | b | 184.2 | b | 157.4 | 132.4 | [1.70 ++] | 1.39 | 2.09 | |
| Indonesia | WB Index | 97.9 | 67.1 | 58.0 | 44.2 | 25.6 | 4.65 | 3.55 | 6.09 |
| Index 1 | 94.4 | 67.5 | 59.6 | 42.6 | 32.2 | 3.89 + | 2.95 | 5.14 | |
| Index 2 | 89.7 | 75.3 | 62.8 | 37.1 | 31.5 | 3.90 + | 3.03 | 5.03 | |
| Index 3 | 81.2 | 82.1 | 65.6 | 39.4 | 31.9 | 3.34 ++ | 2.61 | 4.28 | |
| Kenya | WB Index | 128.0 | 120.9 | 79.3 | 72.9 | 54.6 | 3.29 | 2.43 | 4.46 |
| Index 1 | 126.3 | 120.0 | 76.3 | 86.8 | 52.6 | 3.10 | 2.29 | 4.21 | |
| Index 2 | 112.0 | 141.6 | 87.8 | 106.6 | 52.3 | [2.11 ++] | 1.57 | 2.82 | |
| Index 3 | 112.3 | 141.1 | 84.8 | 104.9 | 53.1 | [2.00 ++] | 1.50 | 2.68 | |
| Malawi | WB Index | 220.0 | 203.4 | 225.5 | 214.6 | 159.2 | 1.31 | 1.04 | 1.64 |
| Index 1 | 193.4 | 228.9 | 233.4 | 216.5 | 157.3 | 1.17 ++ | 0.95 | 1.45 | |
| Index 2 | 259.2 | 211.5 | 183.9 | 211.1 | 172.0 | [1.49 ++] | 1.16 | 1.90 | |
| Index 3 | 257.5 | 211.2 | a | 167.0 | 176.1 | [1.50 ++] | 1.17 | 1.91 | |
| Pakistan | WB Index | 116.2 | 133.8 | 120.7 | 110.5 | 68.7 | 1.80 | 1.37 | 2.37 |
| Index 1 | 119.2 | 122.4 | 134.9 | 117.9 | 64.9 | 1.59 + | 1.22 | 2.08 | |
| Index 2 | 126.6 | 117.9 | 134.8 | 113.8 | 69.2 | [1.83 ] | 1.39 | 2.42 | |
| Index 3 | 118.3 | b | 133.3 | 99.3 | 71.7 | [1.61 +] | 1.22 | 2.13 | |
| Tanzania | WB Index | 124.2 | 162.1 | 125.7 | 136.2 | 85.5 | 1.48 | 1.20 | 1.83 |
| Index 1 | 121.4 | 157.9 | 151.3 | 121.1 | 86.0 | 1.49 | 1.21 | 1.82 | |
| Index 2 | 149.6 | b | 133.5 | 115.4 | 102.5 | [1.91 ++] | 1.51 | 2.41 | |
| Index 3 | b | 149.3 | 132.3 | 105.7 | 106.9 | [1.82 ++] | 1.44 | 2.30 | |
| Uganda | WB Index | 162.7 | 132.8 | 136.0 | 134.6 | 95.7 | 1.72 | 1.38 | 2.15 |
| Index 1 | 157.4 | 145.3 | 133.6 | 129.3 | 98.5 | 1.76 | 1.41 | 2.19 | |
| Index 2 | 157.6 | 144.3 | 136.3 | 126.9 | 99.9 | 1.77 | 1.42 | 2.21 | |
| Index 3 | 157.6 | 144.2 | 135.2 | 130.3 | 98.9 | 1.76 | 1.41 | 2.20 | |
Notes: [] RII's in parentheses indicate that results may be an artefact due to combination of population heaping and a non-linear association of under-5 mortality with wealth; a rates are not shown due to small sample size (smaller then 500), referring to the denominator, i.e. live births during the last 10 years preceding 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