Table 3

Atrophy in oxyntic (A, B, C, D) and antral (E, F) compartments over the follow-up time (T1: index biopsy set; T2: biopsy set at the end of the follow-up)

	A - Oxyntic atrophy: Non-metaplastic (p=0.09)					B - Oxyntic atrophy: Pseudo pyloric-metaplasia (p<0.001)
	T2 G0	T2 G1	T2 G2	T2 G3	TOTAL	T2 G0	T2 G1	T2 G2	T2 G3	Total
T1 G0	58	42	0	0	100	3	7	1	0	11
T1 G1	51	59	0	0	110	5	27	11	9	52
T1 G2	0	1	0	0	1	1	8	20	16	45
T1 G3	0	0	0	0	0	1	10	31	61	103
Total	109	102	0	0	211	10	52	63	86	211
C - Oxyntic atrophy Intestinal metaplasia (p<0.001)						D - Oxyntic atrophy Overall score (p<0.001)
	T2 G0	T2 G1	T2 G2	T2 G3	TOTAL	T2 G0	T2 G1	T2 G2	T2 G3	TOTAL
T1 G0	24	22	3	2	51	3	5	0	0	8
T1 G1	7	73	25	5	110	2	12	3	7	24
T1 G2	1	12	14	5	32	3	0	3	10	16
T1 G3	0	7	3	8	18	1	2	9	151	163
TOTAL	32	114	45	20	211	9	19	15	168	211
E - Antral atrophy Non-metaplastic (p=1.000)						F - Antral atrophy Intestinal metaplasia (p: not assessable)
	T2 G0	T2 G1	T2 G2	T2 G3	TOTAL	T2 G0	T2 G1	T2 G2	T2 G3	TOTAL
T1 G0	202	6	0	0	208	200	11	0	0	211
T1 G1	3	0	0	0	3	0	0	0	0	0
T1 G2	0	0	0	0	0	0	0	0	0	0
T1 G3	0	0	0	0	0	0	0	0	0	0
TOTAL	205	6	0	0	211	200	11	0	0	211

The cells highlighted in grey shows cases that did not undergo any histological changes between T1 and T2. Cells in the space above and to the right of the grey cells show cases that worsened, whereas cells below and to the left of the grey cells show cases that underwent an improvement. Histological atrophy score for biopsy set of the same gastric compartment; GO=no atrophic changes; G1=atrophy involving 1%–29% of the mucosal specimens; G2=30%–59%; G3=≥60%.