Table 1 Summary of sex and smoking characteristics.

	All patients		p Value
	UK (n = 126)	Japan (n = 126)
Sex (M/F)	63/63	45/81	0.03*
Age (y) (median (IQR))	49.5 (34–65)	51 (34–65)	0.7†

	Consensus gastritis patients‡
	UK (n = 59)	Japan (n = 76)
Sex (M/F)	29/30	28/48	0.2*
Age (y) (median (IQR))	57 (40–66)	56 (42–66)	0.7†
Smokers/non‐smokers	23/33	17/59	0.047*
H pylori negative patients (%; 95% CI)	6 (10; 4.7–20.1)	11 (14.5; 8.3–24.1)	0.60*

IQR, interquartile range; 95% CI, 95% confidence interval.

*χ² test; †Mann‐Whitney test.

‡Gastritis diagnosed by both pathologists.