Table 1.

Histology of polyps n (%)

	No. of polyps	No. of advanced polyps	No. of patients	No. of patients with advanced polyps
	(n = 1856)	(n = 613)	(n = 880)	(n = 376)
Villous component	196 (10.5)	196 (31.9)	148 (18.8)	148 (39.3)
Villous	34 (1.8)	34 (5.5)	23 (2.6)	23 (6.1)
Tubulovillous	162 (8.7)	162 (26.4)	125 (14.2)	125 (33.2)
Tubular	1014 (54.6)	416 (67.9)	485 (55.1)	227 (60.4)
Flat adenoma	5 (0.3)	1 (0.2)	2 (0.2)	1 (0.3)
Serrated adenoma	6 (0.3)		3 (0.3)
Hyperplastic	339 (18.3)		131 (14.9)
Other	296 (16.0)		111 (12.6)