Rapid Communication
Copyright ©2007 Baishideng Publishing Group Co.
World J Gastroenterol. Apr 21, 2007; 13(15): 2183-2186
Published online Apr 21, 2007. doi: 10.3748/wjg.v13.i15.2183
Figure 1
Figure 1 Trend analysis of primary success of PBS. The success rate of the first attempt at PBS in six chronological groups of 25 patients demonstrates an overall trend towards success over time (P = 0.0393, Cochran-Armitage exact test for trend, Z = -1.7588). Success rate in the six groups respectively is 64%, 68%, 76%, 80%, 76%, and 84%.