Copyright ©2013 Baishideng Publishing Group Co.
World J Gastroenterol. Oct 7, 2013; 19(37): 6284-6291
Published online Oct 7, 2013. doi: 10.3748/wjg.v19.i37.6284
Table 2 Meta-regression analysis for the potential source of heterogeneity
Study characteristicsZP value95%CI
Diagnostic standard (color pattern vs hue histogram)2.900.000.68-3.50
Blind (yes vs unclear)1.360.17-0.87-4.82
Sample size (≥ 50 vs < 50)0.130.90-1.90-2.17
Type of publication (full text vs abstract)1.280.20-1.33-6.37
Design of study (single center vs multicenter)0.040.97-1.35-1.40