Gastric cancer, Helicobacter pylori infection and other risk factors

Table 2 Baseline histology of RCTs with gastric cancer incidence as primary outcome measure

Study	Baseline histology
	Gastritis	Atrophy	Intestinal metaplasia	Dysplasia	Early gastric cancera
Wong et al[56]	+	+	+	+	-
Fukase et al[57]	-	+	+	-	+

^aEarly gastric cancer either newly diagnosed and planning to have endoscopic treatment or in post-resection follow-up. +: Included; -: Not included.