Table 4.

Aneuploidy percentages of chromosomes X, Y, and 18 in the heterochromatin polymorphism carrier and in a chromosomally normal control group.

	Patienta	Controlb	P value
Sex disomies
X,X	1.3%	0.04–0.09%	<0.0001**
Y,Y	1.1%	0.06–0.14%	<0.0001**
X,Y	1.4%	0.14–0.32%	<0.0001**
Autosomal disomies
18,18	0.9%	0.09–0.17%	<0.0001**
Diploidy	2.6%	0.15–0.31%	<0.0001**

^a,b616 and 31134 spermatozoa were analyzed, respectively.