Table 1.

EOR according to different age groups.

			65-69	70-74	75-79	80-84	≥ 85
EOR	Biopsy	quantity	9	3	10	2	3
		% of age groups	33.3%	8.6%	24.4%	16.7%	50.0%
		% of total	7.4%	2.5%	8.3%	1.7%	2.5%
	GTR	quantity	18	27	19	7	3
		% of age groups	66.7%	77.1%	46.3%	58.3%	50.0%
		% of total	14.9%	22.3%	15.7%	5.8%	2.5%
	STR	quantity	0	5	12	3	0
		% of age groups	0.0%	14.3%	29.3%	25.0%	0.0%
		% of total	0.0%	4.1%	9.9%	2.5%	0.0%
total		quantity	27	35	41	12	6
		% of total	22.3%	28.9%	33.9%	9.9%	5.0%