Table 1.
Characteristics of patients with traumatic brain injury overall, and by sex and outcome by year after injury event
| VARIABLES | Overall N (%) 77,088 (100) |
Female patients (N, %) 31,560 (40.94) |
Male patients (N, %) 45,528 (59.06) |
|---|---|---|---|
| Socio-demographic characteristics | |||
| Age at first TBI, years old | |||
| Mean (SD) | 33.96 (24.26) | 37.70 (25.71) | 31.37 (22.85) |
| Median (IQR) | 25.00 (15.00 – 51.00) | 31.00 (16.00 – 57.00) | 23.00 (14.00 – 46.00) |
| Income Q1 (poorest) | 15,124 (19.62) | 6,073 (19.24) | 9,051 (19.88) |
| Income Q2 | 14,839 (19.25) | 6,025 (19.09) | 8,814 (19.36) |
| Income Q3 | 15,203 (19.72) | 6,302 (19.97) | 8,901 (19.55) |
| Income Q4 | 16,166 (20.97) | 6,678 (21.16) | 9,488 (20.84) |
| Income Q5 (wealthiest) | 15,756 (20.44) | 6,482 (20.54) | 9,274 (20.37) |
| Rural residence | 12,779 (16.58) | 5,069 (16.06) | 7,710 (16.93) |
| TBI-related characteristics | |||
| Cause: Falls | 33,800 (43.85) | 16,282 (51.59) | 17,518 (38.48) |
| Cause: Struck by/against object | 27,407 (35.55) | 9,024 (28.59) | 18,383 (40.38) |
| Cause: Motor vehicle accident | 9,667 (12.54) | 3,916 (12.41) | 5,751 (12.63) |
| Cause: Other transport injury | 3,304 (4.29) | 1,304 (4.13) | 2,000 (4.39) |
| Cause: Other cause | 4,383 (5.69) | 1,526 (4.84) | 2,857 (6.28) |
| Unintentional injury | 71,040 (92.15) | 30,433 (96.43) | 40,607 (89.19) |
| Intentional injury | 6,111 (7.93) | 1,120 (3.55) | 4,991 (10.96) |
| Sport-related injury | 19,882 (25.79) | 5,978 (18.94) | 13,904 (30.54) |
| Number of deaths during the study period | |||
| 1st year after TBI event | 1,648 (2.14) | 704 (2.23) | 944 (2.07) |
| 2nd year after TBI event | 914 (1.38) | 401 (1.51) | 513 (1.29) |
| 3rd year after TBI event | 726 (1.26) | 356 (1.58) | 370 (1.05) |
| 4th year after TBI event | 572 (1.15) | 266 (1.41) | 306 (0.99) |
| 5th year after TBI event | 455 (1.07) | 221 (1.39) | 234 (0.87) |
| 6th year after TBI event | 375 (1.04) | 183 (1.38) | 192 (0.84) |
| 7th year after TBI event | 330 (1.07) | 159 (1.43) | 171 (0.87) |
| 8th year after TBI event | 224 (0.87) | 103 (1.13) | 121 (0.72) |
| 9th year after TBI event | 186 (0.86) | 86 (1.15) | 100 (0.71) |
| 10th year after TBI event | 136 (0.77) | 59 (0.97 | 77 (0.67) |
| 11th year after TBI event | 115 (0.83) | 48 (1.02) | 67 (0.74) |
| 12th year after TBI event | 70 (0.69) | 29 (0.84) | 41 (0.61) |
| 13th year after TBI event | 32 (0.49) | NR | NR |
| 14th year after TBI event | 9 (0.27) | < 6 | < 6 |
Abbreviations: IQR, interquartile range; TBI, traumatic brain injury. NR, not reportable due to residual disclosure.