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Table 3 Comparison between the groups of survivors and non-survivors of assumed explanatory variables for trauma death.

From: Prehospital trauma care reduces mortality. Ten-year results from a time-cohort and trauma audit study in Iraq

  Survivors (n = 2,613) Non-survivors (n = 175)
Age (years) 26 (25 - 26.8) 27 (24.5 - 29)
ISS 6.1 (5.9 - 6.3) 28.7 (27.3 - 30.2)
PSS-1 10.1 (10 - 10.2) 4.2 (3.6 - 4.7)
PSS-2 11.5 (11.5 - 11.6) 9.1 (8.5 - 9.8)
In-field response time (hours) 0.8 (0.7 - 0.9) 1.3 (1.0 - 1.5)
Total evacuation time (hours) 2.9 (2.7 - 3.0) 2.5 (1.3 - 3.2)
  1. The results are expressed as means with 95% confidence intervals