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Table 4 Definition of coma

From: At what level of unconsciousness is mild therapeutic hypothermia indicated for out-of-hospital cardiac arrest: a retrospective, historical cohort study

Author Period Definition of coma
Mckean et al. [5] 2009 GCS ≤ 8 and E1 and M ≤ 5
Testori et al. [6] 2011 GCS ≤ 8
Hörburger et al. [7] 2012 GCS < 8
Nielsen et al. [8], [9] 2013 GCS < 8
Hachimi-Idrissi et al. [10] 2005 GCS < 7
Shah et al. [12] 2011 GCS E1 or M1
HACA study group [14] 2002 GCS M ≤ 5
Bernard et al. [13] 2002 None
Knafelj et al. [15] 2007 None
Derwall et al. [16] 2009 None
Petrovic et al. [17] 2011 None
  1. GCS Glasgow Coma Scale, E eye opening score, M motor response score