Table 1.
Baseline characteristics of adults ≥65 years and treated for traumatic brain injury (TBI) at the R Adams Cowley Shock Trauma Center (2006-2012) by TBI severity1, N=259
| Total (N=259) | Low TBI Severity (N=102) | High TBI Severity (N=157) | p-value2 | |
|---|---|---|---|---|
| Age (mean, SD) | 79.5 (7.8) | 79.1 (8.0) | 79.7 (7.7) | <0.001 |
|
Sex (n,%) Female Male |
150 (58.0) 109 (42.0) |
59 (57.8) 43 (42.2) |
91 (58.0) 66 (42.0) |
0.98 |
|
Race (n,%) White Black Other |
208 (80.3) 33 (12.7) 18 (7.0) |
86 (84.3) 10 (9.8) 6 (5.9) |
122 (77.7) 23 (14.7) 12 (7.6) |
0.42 |
|
Glasgow Coma Scale score ≥13 9-12 ≤8 |
209 (80.7) 33 (12.7) 17 (6.6) |
91 (89.2) 8 (7.8) 3 (2.9) |
118 (75.2) 25 (15.9) 14 (8.9) |
0.02 |
| Deaths (n,%) | 24 (9.3) | 2 (2.0) | 22 (14.0) | 0.001 |
|
Comorbidities (n,%) Acute myocardial infarction (AMI) Alzheimer’s disease and related dementias Anemia Chronic kidney disease (CKD) Congestive heart failure Diabetes Depression Hypertension Ischemic heart disease Stroke |
24 (9.3) 78 (30.1) 179 (69.1) 69 (26.6) 107 (41.3) 98 (37.8) 89 (34.4) 235 (90.7) 166 (64.1) 81 (31.5) |
6 (5.9) 25 (24.5) 65 (63.7) 29 (28.4) 44 (43.1) 35 (34.3) 33 (32.3) 88 (86.3) 62 (60.8) 32 (31.4) |
18 (11.5) 53 (33.8) 114 (72.6) 40 (25.5) 63 (40.1) 63 (40.1) 56 (35.7) 147 (93.6) 104 (66.2) 49 (31.6) |
0.13 0.11 0.13 0.60 0.63 0.35 0.58 0.05 0.37 0.97 |
1
TBI severity defined as low (AIS-H <3) and high (AIS-H ≥
2
p-values were calculated using Pearson’s chi-square test for categorical variables and Student’s t test for continuous variables, significant at p<0.05