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. 2023 Apr 11;237(2):206–219. doi: 10.1097/XCS.0000000000000708

Table 2.

Primary and Secondary Outcomes by Resuscitation Type

Outcomes LTOWB
(n = 624)
COMPONENT
(n = 427)
Unadjusted Adjusted*
RR 95% CI p Value RR 95% CI p Value
Primary
 4-h mortality 50 (8.2) 32 (7.5) 1.09 (0.71–1.66) 0.70 0.90 (0.59–1.39) 0.64
  TBI subgroup 6 (6.4) 2 (4.5) 1.40 (0.29–6.68) 0.67 0.61 (0.14–2.70) 0.51
Secondary
 24-h mortality 82 (13.4) 49 (11.5) 1.16 (0.83–1.62) 0.37 1.08 (0.77–1.52) 0.67
  TBI subgroup 19 (20.2) 6 (13.6) 1.48 (0.64–3.45) 0.36 0.89 (0.41–1.96) 0.78
 28-d mortality 110 (17.9) 66 (15.5) 1.16 (0.88–1.53) 0.30 1.10 (0.83–1.47) 0.51
  TBI subgroup 25 (26.6) 11 (25.0) 1.06 (0.58–1.96) 0.84 0.84 (0.45–1.56) 0.57
*

Adjusted for age, sex, injury type, head Abbreviated Injury Scale score, prehospital hypotension, receiving any prehospital blood product, and Injury Severity Score.

The adjusted model is weighted by the inverse probability of treatment (propensity score).

COMPONENT, blood component resuscitation; LTOWB, low-titer group O whole blood; RR, relative risk; TBI, traumatic brain injury.