Table 1.
Demographic, event and injury characteristics for older adults with major trauma
| Overall (n = 9250) | Age 65–74 years (n = 2829) | Age 75–84 years (n = 3549) | Age ≥ 85 years (n = 2872) | P ¶ | |
|---|---|---|---|---|---|
| Sex | < 0·001 | ||||
| M | 5144 (55·6) | 1948 (68·9) | 1959 (55·2) | 1237 (43·1) | |
| F | 4106 (44·4) | 881 (31·1) | 1590 (44·8) | 1635 (56·9) | |
| Charlson Co‐morbidity Index | 0·003 | ||||
| 0 | 4942 (53·4) | 1562 (55·2) | 1818 (51·2) | 1562 (54·4) | |
| ≥ 1 | 4308 (46·6) | 1267 (44·8) | 1731 (48·8) | 1310 (45·6) | |
| IRSAD (quintiles)† | < 0·001 | ||||
| 1st (most disadvantaged) | 1313 (14·5) | 442 (16·1) | 528 (15·2) | 343 (12·1) | |
| 2nd | 1313 (14·5) | 443 (16·1) | 503 (14·5) | 367 (13·0) | |
| 3rd | 1617 (17·9) | 535 (19·4) | 610 (17·6) | 472 (16·7) | |
| 4th | 1946 (21·5) | 567 (20·6) | 789 (22·7) | 590 (20·9) | |
| 5th (least disadvantaged) | 2863 (31·6) | 766 (27·8) | 1044 (30·1) | 1053 (37·3) | |
| ARIA‡ | < 0·001 | ||||
| Major cities of Australia | 7018 (77·6) | 1923 (70·0) | 2724 (78·5) | 2371 (84·0) | |
| Inner regional/outer regional/remote Australia | 2024 (22·4) | 823 (30·0) | 748 (21·5) | 453 (16·0) | |
| Event type | < 0·001 | ||||
| Unintentional event | 9033 (97·7) | 2709 (95·8) | 3484 (98·2) | 2840 (98·9) | |
| Intentional, self‐harm | 77 (0·8) | 37 (1·3) | 27 (0·8) | 13 (0·5) | |
| Intentional, other | 94 (1·0) | 64 (2·3) | 23 (0·6) | 7 (0·2) | |
| Not determined | 46 (0·5) | 19 (0·7) | 15 (0·4) | 12 (0·4) | |
| Mechanism of injury | < 0·001 | ||||
| Transport‐related | 2055 (22·2) | 924 (32·7) | 797 (22·5) | 334 (11·6) | |
| Low fall (≤ 1 m) | 5779 (62·5) | 1088 (38·5) | 2288 (64·5) | 2403 (83·7) | |
| High fall (> 1 m) | 876 (9·5) | 510 (18·0) | 291 (8·2) | 75 (2·6) | |
| Other | 540 (5·8) | 307 (10·9) | 173 (4·9) | 60 (2·1) | |
| Location of injury | < 0·001 | ||||
| Home | 4417 (47·8) | 1221 (43·2) | 1792 (50·5) | 1404 (48·9) | |
| Residential institution | 1172 (12·7) | 92 (3·3) | 342 (9·6) | 738 (25·7) | |
| Road, street or highway | 2336 (25·3) | 965 (34·1) | 931 (26·2) | 440 (15·3) | |
| Other | 1325 (14·3) | 551 (19·5) | 484 (13·6) | 290 (10·1) | |
| Definitive care | < 0·001 | ||||
| Major trauma service | 6542 (70·7) | 2294 (81·1) | 2565 (72·3) | 1683 (58·6) | |
| Other | 2708 (29·3) | 535 (18·9) | 984 (27·7) | 1189 (41·4) | |
| Injury Severity Score*, § | 17 (13–25) | 17 (14–25) | 17 (13–25) | 17 (13–25) | < 0·001# |
Values in parentheses are percentages unless indicate otherwise;
*values are median (i.q.r.).
Data missing for †198, ‡208 and §ten patients.
IRSAD, Index of Relative Socioeconomic Advantage and Disadvantage;
ARIA, Accessibility/Remoteness Index of Australia.
¶χ2 test, except #Mann–Whitney U test.