窄带成像技术诊断胃肠上皮化生的系统评价和meta分析

Seven studies involving 427 patients were included .On a per-patient basis , the sensitivity of NBI for diagnosis of GIM was 0.76 ( 95% CI : 0.69 ? 0.82 ) , and the specificity was 0.94 ( 95% CI : 0.89 ? 0.97 ) .Heterogeneity among studies presented by I2 ......