Editorial
Copyright ©2012 Baishideng Publishing Group Co.
World J Gastroenterol. Apr 14, 2012; 18(14): 1555-1564
Published online Apr 14, 2012. doi: 10.3748/wjg.v18.i14.1555
Table 2 Grading of the recommendations[1]
Grading of the recommendations
ARecommendation supported by two or more levelItrials, without conflicting evidence from other levelItrials
BRecommendation based on evidence from a single levelItrial OR, evidence from two or more levelItrials with conflicting, evidence from another levelItrial OR, evidence from two or more level IItrials
CRecommendations based on levels of evidence III-V