Table 5 CHAID gain index for ITN use in the general population
Node | Description of node | Node | Gain | Did not use ITN (%) | Index | ||
|---|---|---|---|---|---|---|---|
N | % | N | % | ||||
42 | North Central; rural; highest wealth quintile | 133 | 0.4 | 118 | 0.5 | 88.7 | 138.1 |
45 | South East region; top two wealth quintiles | 2742 | 7.3 | 2370 | 9.8 | 86.4 | 134.5 |
53 | South South region; highest wealth quintile; medium and large-size households | 1029 | 2.7 | 885 | 3.7 | 86.0 | 133.9 |
39 | North Central region; urban area; large-size households | 452 | 1.2 | 382 | 1.6 | 84.5 | 131.5 |
44 | South West region; top two wealth quintiles | 123 | 0.3 | 100 | 0.4 | 81.3 | 126.5 |
50 | South South region; fourth and lowest wealth quintiles; urban area | 3767 | 10.0 | 3056 | 12.6 | 81.1 | 126.3 |
40 | North Central region; urban area; medium-size households | 453 | 1.2 | 366 | 1.5 | 80.8 | 125.7 |
54 | South South region; middle and second wealth quintiles; urban area | 944 | 2.5 | 756 | 3.1 | 80.1 | 124.6 |
52 | South South region; highest wealth quintile; small-size households | 627 | 1.7 | 495 | 2.0 | 78.9 | 122.9 |
47 | South West and South East regions; middle wealth quintile; rural area | 895 | 2.4 | 685 | 2.8 | 76.5 | 119.1 |
38 | North Central region; urban area; small-size households | 642 | 1.7 | 479 | 2.0 | 74.6 | 116.1 |
48 | South West region; lowest two wealth quintiles | 430 | 1.1 | 317 | 1.3 | 73.7 | 114.7 |
33 | North East region; highest wealth quintile; secondary or higher education level | 373 | 1.0 | 273 | 1.1 | 73.2 | 113.9 |
51 | South South region; fourth and lowest wealth quintiles; rural area | 1511 | 4.0 | 1062 | 4.4 | 70.3 | 109.4 |
41 | North Central region; rural area; fourth and lowest wealth quintiles | 1397 | 3.7 | 961 | 4.0 | 68.8 | 107.1 |
46 | South West and South East regions; middle wealth quintile; urban area | 891 | 2.4 | 595 | 2.5 | 66.8 | 103.9 |
27 | North West region; medium-size households; highest wealth quintile | 190 | 0.5 | 123 | 0.5 | 64.7 | 100.8 |
30 | North East region; fourth and second wealth quintiles; large-size households | 1609 | 4.3 | 1029 | 4.3 | 64.0 | 99.5 |
55 | South South region; middle and second wealth quintiles; rural area | 1315 | 3.5 | 827 | 3.4 | 62.9 | 97.9 |
43 | North Central region; rural area; middle and second wealth quintiles | 3365 | 8.9 | 2095 | 8.7 | 62.3 | 96.9 |
34 | North East region; middle wealth quintile; no formal education | 723 | 1.9 | 434 | 1.8 | 60.0 | 93.4 |
24 | North West region; large-size households; lowest three wealth quintiles | 729 | 1.9 | 426 | 1.8 | 58.4 | 90.9 |
31 | North East region; fourth and second wealth quintiles; medium-size households | 921 | 2.4 | 533 | 2.2 | 57.9 | 90.1 |
32 | North East region; highest wealth quintile; none or primary level of education | 75 | 0.2 | 42 | 0.2 | 56.0 | 87.2 |
37 | North East region; lowest wealth quintile; medium and large-size households | 1585 | 4.2 | 842 | 3.5 | 53.1 | 82.7 |
35 | North East region; middle wealth quintile; no formal education | 977 | 2.6 | 513 | 2.1 | 52.5 | 81.7 |
29 | North West region; large-size households; lowest three wealth quintiles | 640 | 1.7 | 330 | 1.4 | 51.6 | 80.2 |
26 | North West region; medium-size households; fourth and middle wealth quintiles | 632 | 1.7 | 314 | 1.3 | 49.7 | 77.3 |
25 | North West region; large-size households; lowest three wealth quintiles | 3665 | 9.7 | 1809 | 7.5 | 49.4 | 76.8 |
21 | North West region; small-size households; top two wealth quintiles | 272 | 0.7 | 133 | 0.6 | 48.9 | 76.1 |
49 | South East region; lowest two wealth quintiles | 536 | 1.4 | 258 | 1.1 | 48.1 | 74.9 |
28 | North West region; medium-size households; lowest two wealth quintiles | 2311 | 6.1 | 988 | 4.1 | 42.8 | 66.5 |
22 | North West region; small-size households; middle and second wealth quintiles | 790 | 2.1 | 292 | 1.2 | 37.0 | 57.5 |
36 | North East region; lowest wealth quintile; small-size households | 273 | 0.7 | 99 | 0.4 | 36.3 | 56.4 |
23 | North West region; small-size households; lowest wealth quintile | 592 | 1.6 | 178 | 0.7 | 30.1 | 46.8 |