Table 2.

Allele/Genotype frequencies and test of Hardy-Weinberg (HW) equilibrium

	Controls		CAD
f (A)	0.596		0.660
f (C)	0.404		0.340
	O	E	O	E
AA	22	22.08	66	69.34
AC	30	29.84	78	71.32
CC	10	10.08	15	18.34
	x2 = 0.001, df = 2, P = 0.99		x2 = 1.37, df = 2, P = 0.50

f = observed frequency of each allele (A or C); O = observed genotype numbers; E = expected genotype numbers under a Hardy-Weinberg (HW) equilibrium assumption; X² = Chi-square values; P = probability of difference.