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Table 1 Characte ristics of the 36 studies included ro research the correlation between Hp and BE

From: Helicobacter pylori infection is associated with reduced risk of Barrett’s esophagus: a meta-analysis and systematic review

Authors Years Journal Hp testing meth od Biopsy locati on BE Control Sex match Age m atch BMI/obesity match Smoking match Alcohol match Race match
Aghayeva et al. [36] 2019 Dis Esophagus H*, R Antrum IM Endoscopy Yes Yes Not clear Not clear Not clear Yes
Chen et al. [13] 2016 PLoS One R Antrum IM Primary care Yes Yes Not clear Not clear Not clear Not clear
Chuang et al. [37] 2019 Kaohsiung Journal of Medical Sciences H, R, U§ Not clear Not clear GERD|| Not clear Not clear Not clear Not clear Not clear Not clear
Corley et al. [38] 2008 Gut S   IM Population Yes Yes Not clear Not clear Not clear Not clear
Csendes et al. [39] 1997 Dis Esophagus H Antrum Gastric epithelium ≥ 3 cm or IM Endoscopy, Primary care No No Not clear Not clear Not clear Not clear
Dore et al. [63] 2016 Scand J Gastroenterol H, R, 13C-UBT Antrum, Angulus, Corpus IM GERD Not clear Not clear Not clear Not clear Not clear Not clear
Ferrández et al. [12] 2006 BMC Gastroenterol S   IM Blood donor Yes Yes Not clear No No Not clear
Fischbach et al. [40] 2014 Am J Gastroenterol H, C** Antrum, Corpus, Cardia IM Endoscopy Yes Yes Yes No Not clear No
Hackelsberger et al. [41] 1998 Gut H, R Antrum, Corpus Endoscopic diagnose Endoscopy Not clear Not clear Not clear Not clear Not clear Not clear
Hirota et al. [42] 1999 Gastroenterology H EGJ†† IM Endoscopy Not clear Not clear Not clear Not clear Not clear Not clear
Katsinelos et al. [44] 2013 Hippokratia R Antrum IM Endoscopy Yes Yes Yes Yes Yes Not clear
Keyashian et al. [64] 2013 Dis Esophagus H, S, stool antigen Not clear IM GERD No No Yes Yes Not clear Not clear
Kiltz et al. [45] 2002 Eur J Gastroenterol Hepatol R, S Antrum, Corpus IM Endoscopy Not clear Not clear Not clear Not clear Not clear Not clear
Laheij et al. [46] 2002 Alimentary Pharmacology and Therapeutics H, R, C Antrum CM‡‡ Endoscopy No Not clear Not clear Not clear Not clear Not clear
Loffeld et al. [47] 2000 Digestion H, R, S, C Antrum CM Endoscopy Not clear Not clear Not clear Not clear Not clear Not clear
Loffeld et al. [48] 2004 Netherlands Journal of Medicine H, C Antrum Not clear Endoscopy Not clear No Not clear Not clear Not clear Not clear
Newton et al. [49] 1997 Gut R A ntrum Not clear GERD No No Not clear Not clear Not clear Not clear
Öberg et al. [43] 1999 Archives of Surgery H Antrum, biopsies just below SCJ§§ IM GERD Not clear Not clear Not clear Not clear Not clear Not clear
Park et al. [50] 2009 J Clin Gastroenterol H, R, S Not clear IM Endoscopy No No No No No Yes
Paull and Yardley [51] 1988 Gastroenterology H Gastric biopsy Not clear Endoscopy Yes Yes Not clear Not clear Not clear Not clear
Rajendra et al. [52] 2007 Helicobacter H, R, S Antrum, Corpus, Cardia IM GERD Not clear Not clear Not clear Not clear Not clear Not clear
Ronkainen et al. [53] 2005 Gastroenterology H, C Antrum, Corpus IM Population Not clear Not clear Not clear No No Not clear
Rubenstein et al. [54] 2014 Clin Gastroenterol Hepatol S   IM GERD Yes Not clear Not clear Not clear Not clear Not clear
Sharifi et al. [55] 2014 Gastroenterol Res Pract R Antrum IM GERD Yes No No Yes Yes Not clear
Sonnenberg et al. [56] 2010 Gastroenterology H Stomach IM Endoscopy No No Not clear Not clear Not clear Not clear
Sonnenberg et al. [11] 2017 Aliment Pharmacol Ther H Stomach IM Endoscopy No No Not clear Not clear Not clear No
Thrift et al. [57] 2012 Int J Cancer S   IM Population Not clear Not clear Not clear Not clear Not clear Not clear
Usui et al. [35] 2019 J Clin Gastroenterol S   Endoscopic diagnose Endoscopy Not clear Not clear Not clear Not clear Not clear Not clear
Vaezi et al. [58] 2000 Am J Gastroenterol H ,S Antrum, Corpus IM GERD Not clear Yes Not clear Not clear Not clear Not clear
Vicari et al. [59] 1998 Gastroenterology H, S Antrum, Fundus, Cardia CM ≥ 3 cm or IM GERD Not clear Yes Not clear Not clear Not clear Yes
Vieth et al. [65] 2000 Digestion H Antrum, Corpus IM NUD|||| No No Not clear Not clear Not clear Not clear
Weston et al. [60] 2000 Am J Gastroenterol H Stomach IM GERD Yes Yes Not clear Yes Yes No
White et al. [61] 2008 Can J Gastroenterol H Not clear IM Normal SCJ No Yes Not clear Not clear Not clear Not clear
Wu et al. [66] 2000 Alimentary Pharmacology and Therapeutics H, R Antrum, Corpus IM GERD Not clear Not clear Not clear Not clear Not clear Not clear
Zaninotto et al. [67] 2002 Dig Liver Dis H Esophagus IM GERD No No Not clear Not clear Not clear Not clear
Zhang et al. [62] 2004 World J Gastroenterol H Antrum IM GERD Not clear Not clear Not clear Not clear Not clear Not clear
  1. *: Histology, †: Rapid urease test, ‡: Intestinal metaplasia, §: Urea breath test, ||: Gastroesophageal reflux disease, ¶: Serology, **: Culture, ††: Esophagogastric junction, ‡ ‡: Columnar metaplasia, §§: Squamous Columnar Junction, ||||: Non-ulcer dyspepsia