Head-and-neck squamous cell carcinoma risk in smokers: no association detected between phenotype and AHR, CYP1A1, CYP1A2, or CYP1B1 genotype

Table 7 Detailed studies of chromosomal frequencies of CYP1B1 haplotype ACTTGATC in haploblock 2

Caucasian-Americans and African-Americans in present cohort, combined (Latino-American excluded)
	ACTTGATC^*	Other haplotypes	Total chromosomes
HS	11	213	224
HR	0	196	196
Total	11	409	420

^* Statistically significant (P = 0.0011) by Fisher’s exact test, comparing HS with HR

ISSN: 1479-7364