Table 3.

NAT2 genotype frequency.

NAT2 Genotype	Sporadic-CRC		IBD benign		IBD dysplasia/cancer		Controls		Phenotype
	No.	%	No.	%	No.	%	No.	%
NAT2*5B/*6A	26	21.3	85	23.22	5	33.33	54	24.3	Slow
NAT2*4/*5B	22	18	72	19.67	1	6.66	39	17.5	Intermediate
NAT2*5B/*5B	17	13.9	54	14.75	3	20	32	14.4	Slow
NAT2*4/*6A	24	19.7	48	13.11	4	26.66	30	13.5	Intermediate
NAT2*6A/*6A	16	13.2	20	5.46			21	9.45	Slow
NAT2*4/*4	3	2.45	26	7.1			16	7.2	Rapid
NAT2*6A/*7B	3	2.45	6	1.63			3	1.36	Slow
NAT2*5B/*7B	2	1.63	8	2.18			5	2.25	Slow
NAT2*5B/*5C	2	1.63	2	0.54			4	1.8	Slow
NAT2*5A/*6A	0	0	2	0.54			2	0.9	Slow
NAT2*5B/*13	0	0	5	1.36	1	6.66	2	0.9	Intermediate
NAT2*4/*5A	0	0	5	1.36			2	0.9	Intermediate
NAT2*4/*7B	2	1.63	5	1.36	1	6.66	2	0.9	Intermediate
NAT2*5C/*6A	0	0	3	0.819			2	0.9	Slow
NAT2*5A/*5B	1	0.81	8	2.18			1	0.45	Slow
NAT2*5A/*5C	0	0	2	0.54			1	0.45	Slow
NAT2*5B/*12A	1	0.81	0	0			1	0.45	Intermediate
NAT2*5C/*5C	0	0	1	0.27			1	0.45	Slow
NAT2*4/*12A	0	0	0	0			1	0.45	Rapid
NAT2*4/*5C	1	0.81	7	1.91			1	0.45	Intermediate
NAT2*6A/*12A	0	0	0	0			1	0.45	Intermediate
NAT2*6A/*13	1	0.81	1	0.27			1	0.45	Intermediate
NAT2*4/*13	0	0	2	0.54			0	0	Rapid
NAT2*5A/*13	0	0	1	0.27			0	0	Intermediate
NAT2*5A/*5A	1	0.81	1	0.27			0	0	Slow
NAT2*5C/*7B	0	0	2	0.54			0	0	Slow
Total	122		366		15		222

Genotypes listed by order of decreasing frequency in control group

IBD: inflammatory bowel disease

CRC: colorectal cancer