Brief Article
Copyright ©2011 Baishideng Publishing Group Co.
World J Gastroenterol. Jan 21, 2011; 17(3): 391-396
Published online Jan 21, 2011. doi: 10.3748/wjg.v17.i3.391
Figure 1
Figure 1 Overall mortality of patients with or without preoperative biliary drainage. Estimates of preoperative biliary drainage (PBD) effects of each study are presented on a log scale along with the 95% CI. The weight of each study is reflected by the size of square. The open diamond represents the global estimate of the PBD effect along with the 95% CI (random-effects model).