Table 4. Methylation levels (%) of CpG1 and the CpG1 area in samples analyzed using different methods.

Sample	H1	H2	H3	H4	H5	JA	JB	JC	TS
CpG-Array	31.3	33.4	53.1	59.6	-	86.1	78.5	26.6	-
CpG-BiSeq	52.4	25.0	38.5	46.2	68.4	84.6	91.7	15.4	50.0
Area-BiSeq	77.9	71.8	79.0	87.0	86.8	90.6	92.1	72.7	62.0

CpG-Array: The methylation level of the CpG1 analyzed using human microarray. CpG-BiSeq: The methylation level of the CpG1 analyzed using bisulfate sequencing. Area-BiSeq: The average methylation level of all 22 CpG sites including CpG1 in the area (446 bp) analyzed using bisulfate sequencing.