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Table 2 Summary of quality assessment of studies.

From: Systematic review of safety checklists for use by medical care teams in acute hospital settings - limited evidence of effectiveness

Setting Study Quality assessment*
   No conflict of interest Appropriate study design Appropriate participant selection Appropriate allocation concealment and blinding Appropriate data collection methods used Outcome attributable to intervention Appropriate analysis
ICU Agarwal et al 2008 [3] ? + + ? + + +
  Berenholtz et al 2004 [4] ++ + ? - + + +
  Byrnes et al 2009 [5] ++ + ? ? + ++ ?
  Narasimhan et al 2006 [6] ? + ? ? + + ?
  Pronovost et al 2003 [7] ? + ? ? + + ?
ED Gokula et al 2007 [8] ? + + ? + + +
  Romagnuolo et al 2005 [9] ? + ++ ? + + ++
Surgery Haynes et al 2009 [10] ++ + + - + + +
Acute care Weingarten Jr et al 2004 [11] ? + + ? + ? ?
  1. *Quality assessment: ++ = criterion met; + = criterion partially met; - = criterion not met; ? = unclear from the information provided.