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Table 1 Baseline characteristics of included mild TBI patients N = 566

From: Diagnostic accuracy of prehospital serum S100B and GFAP in patients with mild traumatic brain injury: a prospective observational multicenter cohort study – “the PreTBI I study”

Variable n/Valid Cases (%)
Sex and Age
Female, n/N (%) 237/566 (41.9)
Age years, median (IQR) 62 (45;74)
Charlson Comorbidity Index
 0, n/N (%) 161/566 (28.4)
 1–2, n/N (%) 138/566 (24.4)
 3–4, n/N (%) 159/566 (28.1)
  ≥ 5, n/N (%) 108/566 (19.1)
Antiplatelet/−coagulant treatment
 Yes, n/N (%) 144/556 (25.9)
 - Acetylsalicylic acid, n/N (%) 65/144 (45.1)
 - ADP-receptor antagonist, n/N (%) 32/144 (22.2)
 - Vitamin K antagonist, n/N (%) 18/144 (12.5)
 - NOAC, n/N (%) 32/144 (22.2)
No, n/N (%) 412/556 (74.1)
Trauma Mechanism
 Traffic, n/N (%) 143/557 (25.6)
 Fall < 2 m, n/N (%) 350/557 (62.8)
 Fall > 2 m, n/N (%) 17/557 (3.1)
 Violence, n/N (%) 14/557 (2.5)
 Other, n/N (%) 33/557 (5.9)
Alcohol/drugs prior to trauma
 Suspected, n/N (%) 161/521 (30.9)
 Not suspected, n/N (%) 360/521 (69.1)
GCS at inclusion
 GCS 15 453/566 (80.0)
 GCS 14 113/566 (20.0)