Cancer and age related colonic crypt deficiencies in cytochrome c oxidase I

Table 2 Distribution of cytochrome c oxidase I defective crypts according to cluster size

Gender	(a) size of cluster	(b) number of defective clusters of each cluster size	(a) × (b) number of defective crypts for each cluster size	% of total crypts in each size class
Female	1	309	309	43.5
	2	82	164	23.1
	3	38	114	16
	4	15	60	8.4
	5	9	45	6.3
	6	2	12	1.7
	7	1	7	1
		Total 456	Total 711	Total 100.0
Male	1	622	622	35.2
	2	223	446	25.3
	3	95	285	16.1
	4	31	124	7
	5	20	100	5.7
	6	7	42	2.4
	7	5	35	2
	8	5	40	2.3
	9	1	9	0.5
	10	2	20	1.1
	12	1	12	0.7
	13	1	13	0.7
	17	1	17	1
		Total 1014	Total 1765	Total 100.0