Table 3. Probes Targeting Polymorphic CpG sites.

Polymorphic Position	Total Probes		Infinium I		Infinium II
	N	%	N	%	N	%
C	35524	7.3%	5956	4.4%	29568	8.4%
G	33905	7.0%	5961	4.4%	27944	8.0%
The Base Before C	1429	0.3%	1429	1.1%	-	-
Total Probes	66877	13.8%	12671	9.4%	54206	15.5%