Table 1.

Characteristics of studies included in the systematic review of gastric cancer incidence in patients with gastric atrophy

First author (Year) [reference]	Country	Study design	Indication(s) for endoscopy	Study follow up period	Outcome source	Number of patients in cohort	Male (%)	Mean age (years)	Follow-up (years) [mean/median]	HP* positive (%)
González (2016) [38]	Spain	Retrospective cohort	NR*	1995–2013	Pathology records, clinical records, endoscopy	156	46	49	12 (mean)	80
Inoue (2000) [10]	Japan	Prospective cohort	NR*	1985–1999	Hospital records, Cancer registry, mail survey	4397	48	50	10 (mean)	NR*
Lahner (2015) [11]	Italy	Prospective cohort	Surveillance programme	1992–2009	Endoscopy	200	33	55	7.5 (median)	NR*
Siurala (1974) [35]	Finland	Prospective cohort	NR*	1950–1973	Endoscopy	116	NR*	64	21 (mean)	NR*
Song (2015) [36]	Sweden	Retrospective cohort	Dyspepsia	1979–2011	Endoscopy, Cancer registry, ONS*	14,285	55	60	10.1 (mean)	NR*
Takata (2007) [25]	Japan	Prospective cohort	NR*	1991–2001	NR*	101	58	56	5.2 (mean)	NR*
Tatsuta (1993) [8]	Japan	Retrospective cohort	NR*	1968–1976	Cancer registry, pathology database	194	80	NR*	19 (mean)	100
Vannella (2010) [17]	Italy	Prospective cohort	NR*	1992–2008	Endoscopy	300	32	54	4.3 (median)	6

*NR Information not available, HP Helicobacter pylori, ONS Office for National Statistics