的病灶数及文献质量对文献异质性来源有影响。回归结果 .doc

Supplemental material 3 Variables Coefficient RDOR(95%CI) P值 Study country 2.501 12.20(2.02;73.46) 0.0132 Sample size 2.836 17.05(2.17;133.80) 0.0140 Publication year 1.140 3.13(0.23;42.11) 0.3344 Endoscopic diagnostic criteria -1.659 0.19 (0.01;2.53) 0.1734 Literature quality 0.473 1.60(0.10;25.76) 0.6994 Study center number -1.592 0.20 (0.01;5.83) 0.2989 Total sample size -2.221 0.11(0.00;2.36) 0.1319 Meta-regression for the potential source of heterogeneity Figure 1 Diagnostic performance of magnifying endoscopy with narrow band imaging (ME-NBI) for gastric cancer(GC) of studies from Japan. Figure 2. Diagnostic performance of magnifying endoscopy with narrow band imaging (ME-NBI) for gastric cancer(GC) of studies from other countries. Figure 3. Diagnostic performance of magnifying endoscopy with narrow band imaging (ME-NBI) for gastric cancer(GC) of studies of sample size≥200. 1