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Table 1 Description of the characteristics of patients and their injuries for the pre-intensivist, partial intensivist, and full-time intensivist periods

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

  Pre-intensivist
Period
Partial
Intensivist
Period
Full-time
Intenstivist
Period
 
Characteristic N = 11,399 N = 5,540 N = 1,979 P-Value*
Age, mean, (SD) 37.2 (17.8) 39.7 (18.8) 42.6 (19.6) < .001
Died, N, (%) 191 (1.7) 122 (2.2) 52 (2.6) .004
Male, N, (%) 7,496 (65.8) 3,856 (69.6) 1,403 (70.9) < .001
Race/Ethnicity, N, (%)        < .001
   Hispanic 2,191 (19.2) 1,041 (18.8) 285 (14.4)  
   African American 313 (2.8) 161 (2.9) 48 (2.4)  
   American Indian 738 (6.5) 360 (6.5) 175 (8.8)  
   Asian 97 (0.9) 65 (1.2) 17 (0.9)  
   Other/Unknown 146 (1.3) 91 (1.6) 17 (0.9)  
   White, non-Hispanic 7,914 (69.4) 3,822 (69.0) 1,437 (72.6)  
Body Part Injured, N, (%)        < .001
   Head or neck 4,398 (38.6) 2,140 (38.7) 773 (39.2)  
   Face 524 (4.6) 213 (3.9) 84 (4.3)  
   Chest 747 (6.6) 572 (10.3) 346 (17.5)  
   Abdomen, pelvic contents 538 (4.7) 353 (6.4) 161 (8.2)  
   Extremities, pelvic girdle 1,655 (14.5) 1,245 (22.5) 450 (22.8)  
   External** 3,533 (31.0) 1,012 (18.3) 160 (8.1)  
  1. Some percentages may not sum to 100.0 because of rounding
  2. * P values are based on the chi-square statistic for categorical variables and analysis of variance for continuous variable comparing the three periods
  3. †14 patients had missing data for injured body part
  4. ** lacerations, contusions, abrasions, burns