Skip to main content

Table 3 Assessment of quality of studies

From: Hybrid coronary revascularization versus coronary artery bypass grafting for multivessel coronary artery disease: systematic review and meta-analysis

   Selection   Comparability   Outcome assessment   
Author Year 1 2 3 4 5 6 7 Score
Kon 2007 * * * * ** * - *******
Zhao 2008 - * * ** * * - ******
Reicher 2007 * * * ** ** * - ********
Vassiliades 2009 * * * ** * * * ********
Delhaye 2010 * * * ** * * - *******
Hu 2010 * * * ** ** * * *********
Halkos 2011 * * * * * * - ******
Bachinsky 2012 - * * ** ** * - *******
Leacche 2012 - * * ** * * - ******
  1. -:zero point, *: One point, **: Two points.