Table 3 Kappa coefficients of agreement for all patients' biopsies (Sydney system histology results from a UK and Japanese histopathologist).

Biopsy site	Atrophy	Intestinal metaplasia	Polymorph activity	Chronic inflammation
Antrum 1	0.213	0.549	0.565	0.662
Antrum 2	0.175	0.642	0.643	0.676
Incisura	0.395	0.675	0.552	0.729
Lesser curve	0.706	0.650	0.617	0.573
Greater curve	0.392	0.468	0.646	0.518
Mean	0.376	0.597	0.604	0.632