Table 4.

Estimated p53 haplotype frequencies in SCCHN patients and controls.

	Alleles	‡1 - 1 - 1	1 - 1 - 2^	1 - 2 - 1	1 - 2 - 2	2 - 1 - 1	2 - 1 - 2	2 - 2 - 1	2 - 2 - 2
Intr 3-ex 4-intr 6
Cases	566	0.705	0.034	0.067	0.120	0.040	0.014	0.019	0.101
Controls	590	0.696	0.020	0.068	0.053	0.026	0.005	0.008	0.123

p-value of χ²-test: cases versus controls > 0.1

‡ 1 = intron 3 (W), exon 4 Arg, intron 6 G

^ 2 = intron (M), exon 4 Pro, intron 6 A