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Table 3 For subgroups of patients defined by injury severity score and age, number of deaths, death rates and adjusted odds ratios and 95% confidence intervals (CI) for death by period

From: Association of changes in the use of board-certified critical care intensivists with mortality outcomes for trauma patients at a well-established level I urban trauma center

  Deaths
Number
Patients
Number
% Died Adjusted
Odds
Ratio
(95% CI) P
Value
Injury Severity Score
16-24
      
   Pre-intensivist period 30 1,000 3.0 1.00* (referent)  
   Partial intensivist       
   period 5 718 0.7 0.20 (0.07-0.58) .001
   Full-time intensivist       
   period 4 313 1.3 0.30 (0.11-0.88) .03
   All periods 39 2031 1.9 ---- ----  
Injury Severity Score
25-34
      
   Pre-intensivist period 78 434 18.0 1.00* (referent)  
   Partial intensivist       
   period 55 335 16.4 0.85 (0.58-1.26) .42
   Full-time intensivist       
   period 29 136 21.3 1.13 (0.70-1.86) .60
   All periods 162 905 17.9 ---- ----  
Injury Severity Score
35-75
      
   Pre-intensivist period 64 195 32.8 1.00* (referent)  
   Partial intensivist       
   period 52 146 35.6 1.12 (0.71-1.76) .62
   Full-time intensivist       
   period 16 54 29.6 0.87 (0.45-1.68) .68
   All periods 132 395 33.4 ---- ----  
Age 65+ Years       
   Pre-intensivist period 62 1108 5.6 1.00 (referent)  
   Partial intensivist       
   period 33 712 4.6 0.51 (0.31-0.84) .009
   Full-time intensivist       
   period 14 308 4.6 0.61 (0.32-1.16) .13
   All periods 109 2128 5.1 ---- ----  
  1. * Adjusted for age and sex
  2. †Adjusted for sex and injury severity score