Table 5 Relationship between GORD symptoms and risk of gastric cardia cancer in atrophic versus non-atrophic subjects

PG I/II	GORD symptoms	Cardia cancer		Fisher’s exact test	OR (95% CI)
PG I/II	GORD symptoms	Case	Control	p value (two-sided)	OR (95% CI)
Atrophic	>2/week	1	0	1.000	n/a
	0–2/week	24	12
	Total	25	12
Non-atrophic	>2/week	13	4	0.001	8.02 (2.25 to 28.58)
	0–2/week	15	37
	Total	28	41

n/a: not applicable.