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Table 2 Frequency of ETCO2 use

From: End-tidal carbon dioxide monitoring may be associated with a higher possibility of return of spontaneous circulation during out-of-hospital cardiac arrest: a population-based study

  Frequency of ETCO2 use
Year ETCO2 use Untreated group
NO. % NO. %
2005 7 1.32 522 98.68
2006 2 0.35 571 99.65
2007 5 0.86 574 99.14
2008 7 1.04 666 98.96
2009 0 0 643 100
2010 7 1.07 646 98.93
2011 14 2.03 675 97.97
2012 41 5.84 661 94.16