Association between regular arrangement of collecting venules and Helicobacter pylori status in routine endoscopy

Table 4 Summary of study characteristics on the association of RAC and H. pylori status

Author	Year	Reference methods								Number of patients	Eradicated patients	Sensitivity (%)	Specificity (%)
		Histology		RUT		UBT	Serology	Culture
		Corpus	Antrum	Corpus	Antrum	UBT	Serology	Corpus	Antrum
Yagi et al. [6]	2002	√	√	√	√			√	√	557	Unknown	93.8	96.2
Nakayama et al. [8]	2004	√	√	√	√	√	√			52	Excluded	93.5	100
Anagnostopoulos et al. [9]	2007	√	√	√	√					95	Unknown	92.8	100
Machado et al. [10]	2008		√		√					99	Excluded in 12 months	88.1	96.9
Gonen et al. [11]	2009	√	√	√	√					129	Excluded	82.8	85.7
Yan et al. [15]	2010	√		√						112	Excluded	66.7	100
Hidaka et al. [12]	2010	√	√			√	√			87	Excluded	86.7	100
Cho et al. [13]	2013	√	√	√	√					617	Excluded	89.1	93.3
Kato et al. [14]	2013	√								275	Excluded	48.0	93.6
Tongtawee et al. [16]	2015	√		√						200	Excluded in 2 months	53.0	100
Garces-Duran et al. [17]	2019	√	√	√	√					140	Included	49.0	100
Yuan et al.*	2020	√								165	Included	51.4	96.7

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