Letters To The Editor
Copyright ©The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Feb 7, 2015; 21(5): 1689-1690
Published online Feb 7, 2015. doi: 10.3748/wjg.v21.i5.1689
Unfavorable outcome of antiviral therapy in cytomegalovirus-positive ulcerative colitis may be due to inappropriate study inclusion in meta-analysis
Xiao-Wei Wu, Miao-Fang Yang, Nan Li, Fang-Yu Wang
Xiao-Wei Wu, Miao-Fang Yang, Nan Li, Fang-Yu Wang, Department of Gastroenterology and Hepatology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, Jiangsu Province, China
Author contributions: Wu XW, Li N and Wang FY contributed to primary concept and data analysis; Wu XW and Yang MF contributed to writing the manuscript.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Fang-Yu Wang, PhD, Department of Gastroenterology and Hepatology, Jinling Hospital, Medical School of Nanjing University, No. 305 Zhongshan East Road, Nanjing 210002, Jiangsu Province, China. wangfangyu2014@126.com
Telephone: +86-25-80860051 Fax: +86-25-80860151
Received: September 9, 2014
Peer-review started: September 10, 2014
First decision: October 14, 2014
Revised: November 13, 2014
Accepted: December 16, 2014
Article in press: December 16, 2014
Published online: February 7, 2015
Processing time: 152 Days and 19.4 Hours
Core Tip

Core tip: A recently article in the World Journal of Gastroenterology entitled “Antiviral therapy in cytomegalovirus-positive ulcerative colitis: A systematic review and meta-analysis” showed that antiviral therapy caused a higher risk of 30-d colectomy in cytomegalovirus-positive ulcerative colitis patients. We found that in this article, unfavorable outcome of antiviral therapy was due to inappropriate study inclusion in meta-analysis.