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Table 5 Comparison of injury to non-injury visits based on Severity Classification System (SCS)

From: Anticipated resource utilization for injury versus non-injury pediatric visits to emergency departments

Metric   SCS Uncodablea SCS 1 SCS 2 SCS 3 SCS 4 SCS 5
% of all visits Injury 3.8 1.2 28.6 56.0 9.6 0.8
  Non-injury 5.1 3.0 31.4 47.3 12.2 1.1
  Overall Chi-square for injury vs non-injury <0.0001       
ED LOS (mean) Injury 191.3 109.8 138.3 170.9 284.8 386.6
  Non-injury 222.4 112.4 142.4 218.3 367.2 452.9
ED LOS (median) Injury 123 75 112 121 180 180
  Non-injury 128 77 104 158 240 240
  Difference in median LOS between injury and non-injury visits 5.0 (3.3, 6.7) 2.0 (-0.2, 4.2) 8.0 (-8.6, 7.4) 37.0 (36.5, 37.5) 60.0 (59.3, 60.7) 60.0 (54.0, 66.0)
Admit % [For each SCS, the % admitted or transferred) Injury 3.3 1.1 1.5 6.7 36.3 73.4
Non-injury 4.5 1.0 1.9 12.3 50.9 81.5
OR (Injury vs non-injury visits) 0.57 (0.54, 0.59) 1.09 (0.88, 1.36) 0.79 (0.76, 0.82) 0.51 (0.51, 0.52) 0.55 (0.54, 0.56) 0.62 (0.58, 0.66)
Median ISS Determinable only in injury visits 1 1 1 1 3 10
  1. aICD-9CM could not be assigned an SCS level