Table 5.
Variable importance (VIMP) of the candidate predictors obtained from the final models. Age refers to age at injury, rural refers to rurality indicator, incquint refers to income quintile, Topic refers to normalized topic score variables.
| Rank | TBI | Cause of Injury | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Falls | Struck by/against | Cyclist Collision | Motor Vehicle Collision | |||||||
| Variable | VIMP | Variable | VIMP | Variable | VIMP | Variable | VIMP | Variable | VIMP | |
| 1 | Topic 17 | 0.2320 | Topic 14 | 0.2274 | Topic 17 | 0.1991 | Topic 17 | 0.1353 | Topic 17 | 0.1744 |
| 2 | Topic 14 | 0.2242 | Topic 17 | 0.2155 | Topic 5 | 0.1761 | age | 0.1245 | Topic 14 | 0.1655 |
| 3 | Topic 5 | 0.1782 | Topic 5 | 0.1609 | Topic 14 | 0.1610 | Topic 14 | 0.1187 | Topic 4 | 0.1235 |
| 4 | Topic 4 | 0.1341 | Topic 2 | 0.1400 | Topic 4 | 0.1440 | Topic 4 | 0.1124 | Topic 5 | 0.1123 |
| 5 | Topic 2 | 0.1277 | Topic 4 | 0.1163 | Topic 2 | 0.1404 | Topic 5 | 0.1009 | age | 0.1112 |
| 6 | Topic 3 | 0.1109 | Topic 12 | 0.1065 | Topic 19 | 0.1202 | Topic 2 | 0.0999 | Topic 2 | 0.0971 |
| 7 | age | 0.1034 | Topic 3 | 0.1041 | age | 0.1110 | Topic 19 | 0.0989 | Topic 3 | 0.0894 |
| 8 | Topic 19 | 0.0947 | Topic 1 | 0.0931 | Topic 8 | 0.1003 | Topic 3 | 0.0780 | Topic 15 | 0.0860 |
| 9 | Topic 13 | 0.0936 | Topic 15 | 0.0912 | Topic 13 | 0.0971 | Topic 15 | 0.0680 | Topic 13 | 0.0788 |
| 10 | Topic 1 | 0.0886 | Topic 13 | 0.0875 | Topic 3 | 0.0941 | Topic 18 | 0.0664 | Topic 12 | 0.0714 |
| 11 | Topic 12 | 0.0862 | age | 0.0803 | Topic 18 | 0.0911 | Topic 13 | 0.0632 | Topic 19 | 0.0659 |
| 12 | Topic 15 | 0.0834 | Topic 16 | 0.0712 | Topic 1 | 0.0906 | Topic 12 | 0.0582 | Topic 18 | 0.0644 |
| 13 | Topic 16 | 0.0761 | Topic 18 | 0.0699 | Topic 12 | 0.0885 | Topic 1 | 0.0549 | Topic 1 | 0.0630 |
| 14 | Topic 9 | 0.0716 | Topic 19 | 0.0695 | Topic 9 | 0.0852 | Topic 8 | 0.0533 | Topic 16 | 0.0623 |
| 15 | Topic 8 | 0.0714 | Topic 9 | 0.0680 | Topic 15 | 0.0843 | Topic 9 | 0.0452 | Topic 9 | 0.0621 |
| 16 | Topic 18 | 0.0650 | Topic 6 | 0.0544 | Topic 16 | 0.0843 | Topic 16 | 0.0448 | Topic 8 | 0.0595 |
| 17 | Topic 10 | 0.0625 | Topic 8 | 0.0536 | Topic 7 | 0.0772 | Topic 7 | 0.0434 | Topic 10 | 0.0558 |
| 18 | Topic 6 | 0.0570 | Topic 10 | 0.0465 | Topic 6 | 0.0756 | Topic 10 | 0.0428 | Topic 6 | 0.0444 |
| 19 | Topic 7 | 0.0492 | Topic 11 | 0.0400 | Topic 11 | 0.0738 | Topic 6 | 0.0394 | Topic 7 | 0.0429 |
| 20 | Topic 11 | 0.0476 | Topic 7 | 0.0368 | Topic 10 | 0.0733 | Topic 11 | 0.0373 | Topic 11 | 0.0382 |
| 21 | rural | 0.0065 | rural | 0.0077 | rural | 0.0090 | rural | 0.0092 | rural | 0.0087 |
| 22 | incquint | 0.0034 | incquint | 0.0028 | sex | 0.0051 | sex | 0.0051 | incquint | 0.0027 |
| 23 | sex | 0.0016 | sex | 0.0007 | incquint | 0.0029 | incquint | 0.0027 | sex | 0.0015 |