Purpose
Methods
Data collection and characteristics
Analysis outline
Results
Variable | Occupational status | Total (n = 886) | P value | |||||
---|---|---|---|---|---|---|---|---|
Blue-collar (n = 168) | White-collar (n = 105) | Entrepreneur (n = 93) | Retired (n = 213) | Unemployed (n = 134) | Student (n = 173) | |||
Age (mean, SD) | 40.2 (12.1) | 37.9 (13.3) | 45 (10.8) | 70.5 (10.3) | 53.5 (17.5) | 18.4 (4.8) | 45.5 (21.3) | < 0.001 |
Sex (n, % male) | 155 (92%) | 80 (76%) | 80 (86%) | 157 (74%) | 81 (60%) | 134 (78%) | 687 (78%) | < 0.001 |
Education (n, %) | ||||||||
University | 4 (2%) | 19 (18%) | 13 (14%) | 15 (7%) | 5 (4%) | 25 (14%) | 81 (9%) | < 0.001 |
High school | 45 (27%) | 24 (23%) | 38 (41%) | 33 (16%) | 23 (17%) | 69 (40%) | 232 (26%) | |
Vocational | 32 (19%) | 58 (54%) | 24 (25%) | 23 (11%) | 7 (5%) | 5 (3%) | 149 (17%) | |
Elementary | 69 (41%) | 1 (1%) | 14 (15%) | 35 (16%) | 56 (42%) | 66 (38%) | 241 (27%) | |
Unknown | 18 (11%) | 3 (3%) | 4 (4%) | 107 (50%) | 43 (32%) | 8 (5%) | 183 (21%) |
Variable | Occupational status | Total (n = 886) | P value | |||||
---|---|---|---|---|---|---|---|---|
Blue-collar (n = 168) | White-collar (n = 105) | Entrepreneur (n = 93) | Retired (n = 213) | Unemployed (n = 134) | Student (n = 173) | |||
Mechanism (n, %) | < 0.001 | |||||||
Fall < 3 m | 31 (18%) | 15 (14%) | 15 (16%) | 97 (46%) | 60 (45%) | 13 (8%) | 231 (26%) | |
Fall > 3 m | 32 (19%) | 6 (6%) | 9 (10%) | 11 (5%) | 10 (7%) | 9 (5%) | 77 (9%) | |
Traffic (driver) | 27 (16%) | 31 (30%) | 22 (24%) | 4 (2%) | 10 (7%) | 27 (16%) | 121 (14%) | |
Traffic (passenger) | 6 (4%) | 5 (5%) | 10 (11%) | 11 (5%) | 7 (5%) | 31 (18%) | 70 (8%) | |
Traffic (pedestrian) | 10 (6%) | 8 (8%) | 4 (4%) | 31 (15%) | 15 (11%) | 32 (18%) | 100 (11%) | |
Traffic (bicycle) | 5 (3%) | 6 (6%) | 0 | 13 (6%) | 3 (2%) | 9 (5%) | 36 (4%) | |
Traffic (motorcycle) | 19 (11%) | 9 (9%) | 4 (4%) | 6 (3%) | 3 (2%) | 31 (18%) | 72 (8%) | |
Assault | 9 (5%) | 4 (4%) | 7 (8%) | 4 (2%) | 5 (4%) | 4 (2%) | 33 (4%) | |
Gunshot | 7 (4%) | 5 (5%) | 5 (5%) | 9 (4%) | 5 (4%) | 8 (5%) | 39 (4%) | |
Other | 14 (8%) | 12 (11%) | 10 (11%) | 15 (7%) | 6 (4%) | 4 (2%) | 61 (7%) | |
Unknown | 8 (5%) | 4 (4%) | 7 (8%) | 12 (6%) | 10 (7%) | 5 (3%) | 46 (5%) | |
AIS head (mean, SD) | 4.2 (0.9) | 4.1 (1) | 3.5 (1.2) | 4.2 (1) | 4.1 (1.2) | 3.9 (1.1) | 4 (1.1) | < 0.001 |
First GCS (mean, SD) | 6 (2.7) | 5.8 (2.9) | 6.7 (3.3) | 5.9 (2.9) | 5.9 (2.8) | 5.9 (2.9) | 6 (2.9) | 0.238 |
ISS (mean, SD) | 32.4 (16.2) | 29.7 (15.7) | 25.2 (14) | 26.8 (15) | 29.4 (18.8) | 33.9 (15.9) | 29.8 (16.2) | < 0.001 |
Main diagnosis (n, %) | < 0.001 | |||||||
Contusion | 27 (16%) | 22 (21%) | 18 (19%) | 24 (11%) | 13 (10%) | 28 (16%) | 132 (15%) | |
Oedema | 3 (2%) | 6 (6%) | 1 (1%) | 1 (0%) | 2 (1%) | 6 (3%) | 19 (2%) | |
EDH | 34 (20%) | 20 (19%) | 6 (6%) | 12 (6%) | 21 (16%) | 31 (18%) | 124 (14%) | |
IVH | 23 (14%) | 11 (10%) | 18 (19%) | 32 (15%) | 14 (10%) | 49 (28%) | 147 (17%) | |
Normal | 6 (4%) | 4 (4%) | 2 (2%) | 3 (1%) | 1 (1%) | 6 (3%) | 22 (2%) | |
SAH | 8 (5%) | 6 (6%) | 4 (4%) | 10 (5%) | 6 (4%) | 6 (3%) | 40 (5%) | |
SDH | 62 (37%) | 34 (32%) | 43 (46%) | 129 (61%) | 75 (56%) | 44 (25%) | 387 (44%) | |
Unknown | 5 (3%) | 2 (2%) | 1 (1%) | 2 (1%) | 2 (1%) | 3 (2%) | 15 (2%) |
Variable | Occupational status | Total (n = 886) | P value | |||||
---|---|---|---|---|---|---|---|---|
Blue-collar (n = 168) | White-collar (n = 105) | Entrepreneur (n = 93) | Retired (n = 213) | Unemployed (n = 134) | Student (n = 173) | |||
Air transport (N, % Yes) | 34 (20%) | 32 (30%) | 11 (12%) | 26 (12%) | 14 (10%) | 11 (6%) | 128 (14%) | < 0.001 |
Intubation (N, % Yes) | 100 (60%) | 80 (76%) | 53 (57%) | 115 (54%) | 67 (50%) | 82 (47%) | 497 (56%) | < 0.001 |
ICP monitoring (N, % Yes) | 82 (49%) | 63 (60%) | 23 (25%) | 91 (43%) | 64 (48%) | 61 (35%) | 384 (43%) | < 0.001 |
Days ICP monitoring (mean, SD) | 8 (5.9) | 8.8 (5.3) | 6.2 (3.3) | 7 (5.5) | 6.2 (4.6) | 7.8 (5.2) | 7.4 (5.3) | < 0.058 |
Cranial surgery (N, % yes) | 101 (60%) | 72 (69%) | 50 (54%) | 135 (63%) | 96 (72%) | 80 (46%) | 534 (60%) | < 0.01 |
Days at ICU (median, IQR) | 9 (4–19) | 11 (5–26) | 5 (2–14) | 7 (3–13) | 7 (3–12) | 7 (3–11) | 8 (3–15) | < 0.001 |
Hospital stay (median, IQR) | 17 (6–30) | 19 (6–41) | 10 (3–28) | 8 (4–20) | 11 (3–33) | 14 (5–25) | 12 (4–28) | < 0.001 |
Variable | Occupational status | Total (n = 886) | P value | |||||
---|---|---|---|---|---|---|---|---|
Blue-collar (n = 168) | White-collar (n = 105) | Entrepreneur (n = 93) | Retired (n = 213) | Unemployed (n = 134) | Student (n = 173) | |||
ICU mortality (N, %) | 59 (35%) | 31 (30%) | 37 (40%) | 123 (58%) | 48 (36%) | 51 (29%) | 349 (39%) | < 0.001 |
Hospital mortality (N, %) | 62 (37%) | 32 (30%) | 38 (41%) | 139 (65%) | 55 (41%) | 54 (31%) | 380 (43%) | < 0.001 |
6 months mortality (N, %) | 62 (37%) | 35 (33%) | 38 (41%) | 148 (69%) | 58 (43%) | 55 (32%) | 396 (45%) | < 0.001 |
6 months unfavourable outcome (N, %) | 80 (48%) | 55 (52%) | 44 (47%) | 170 (80%) | 73 (54%) | 64 (37%) | 486 (55%) | < 0.001 |
Predictors | ICU outcome (alive = 1) | Hospital outcome (alive = 1) | 6 Months outcome (alive = 1) | 6 Months outcome (favourable = 1) | ||||
---|---|---|---|---|---|---|---|---|
OR (95% CI) | P value | OR (95% CI) | P value | OR (95% CI) | P value | OR (95% CI) | P value | |
Occupational status | ||||||||
Retired | 1 | 1 | 1 | 1 | ||||
Unemployed | 2.2 (1.2–4) | < 0.01 | 2.4 (1.3–4.3) | < 0.01 | 2.5 (1.4–4.6) | < 0.01 | 3.1 (1.7–5.9) | < 0.001 |
Entrepreneur | 0.8 (0.4–1.6) | 0.506 | 1.1 (0.6–2.3) | 0.751 | 1.3 (0.7–2.7) | 0.442 | 2.2 (1.1–4.6) | < 0.05 |
Blue-collar | 1.7 (0.9–3.3) | 0.107 | 2.3 (1.2–4.4) | < 0.05 | 2.6 (1.3–5.1) | < 0.01 | 3.6 (1.8–7.2) | < 0.001 |
White-collar | 2.3 (1.1–4.8) | < 0.05 | 3.1 (1.5–6.5) | < 0.01 | 3 (1.4–6.2) | < 0.01 | 2.6 (1.2–5.5) | < 0.05 |
Student | 1.4 (0.6–3.4) | 0.494 | 1.7 (0.7–4.2) | 0.239 | 1.7 (0.7–4.2) | 0.238 | 3.5 (1.4–9.0) | < 0.01 |
Age | 0.97 (0.95–0.98) | < 0.001 | 0.97 (0.95–0.98) | < 0.001 | 0.96 (0.95–0.98) | < 0.001 | 0.97 (0.95–0.98) | < 0.001 |
First GCS | 1.5 (1.4–1.6) | < 0.001 | 1.5 (1.4–1.6) | < 0.001 | 1.5 (1.4–1.6) | < 0.001 | 1.5 (1.4–1.6) | < 0.001 |
ISS | 0.95 (0.94–0.96) | < 0.001 | 0.95 (0.94–0.96) | < 0.001 | 0.95 (0.94–0.96) | < 0.001 | 0.95 (0.94–0.96) | < 0.001 |
Model parameters | Nagelkerke R2: 0.438 AUC: 0.842 | Nagelkerke R2: 0.441 AUC: 0.841 | Nagelkerke R2: 0.455 AUC: 0.847 | Nagelkerke R2: 0.471 AUC: 0.853 |