Table 2.

Allelic and genotype frequencies of DNMT 3B −149C > T polymorphism in Down syndrome mothers (DSM) and control mothers (CM).

	Down syndrome mothers		Control mothers		P
	N	%	N	%
Allele
C	124	55.85	198	46.70	0.03*
T	98	44.15	226	53.30
total	222	100.00	424	100.00
Genotype
CC	33	29.73	47	22.17	0.03*
CT	58	52.25	104	49.06
TT	20	18.02	61	28.77
total	111	100.00	212	100.00

^*Significant at P < 0.05.