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Table 2 Differences in mortality and infection rates between 2000 and 2006 (group PreSOP) and 2010–2012 (group SOP)

From: Implementation of new standard operating procedures for geriatric trauma patients with multiple injuries: a single level I trauma centre study

OutcomeSubgroupPreSOP
[n] / %
SOP
[n] / %
P-value
Mortality rateISS = 9–154 / 28.6%7 / 20.6%.71*
ISS ≥ 1680 / 68.4%73 / 50.0%.003
Total84/ 64.1%80/ 44.4%.001
PT ≤ 30%8 / 80.0%8 / 53.3%.23*
PT > 30%49 / 60.5%60 / 39.2%.002
Infection rateISS = 9–151 / 7.1%5 / 14.7%.66*
ISS ≥ 1627 / 23.1%34 / 23.6%.92
Total28 / 21.4%39 / 21.9%.91
PT ≤ 30%1 / 10.0%7 / 46.7%.088*
PT > 30%15 / 18.5%32 / 21.2%.63
  1. ISS Injury Severity Score, PT prothrombin
  2. *Fisher’s exact, ‡Pearsons’s chi-square