Table 1. Genomic distribution of CpG loci in HEP data for each chromosome.

Gene association class	Number (%)
	Chromosome 6	Chromosome 20	Chromosome 22	Sum
# of CpG loci (%)	9757 (31.24)	5172 (16.57)	16308 (52.21)	31237 (100)
Promoter	4856 (49.77)	519 (10.03)	5647 (34.63)	11022 (35.29)
CGIs	5962 (61.10)	1055 (20.40)	6792 (41.65)	13809 (44.21)
Repeat	220 (2.25)	134 (2.59)	475 (2.91)	829 (2.65)
TSS[-10k, -1k]	1511 (15.49)	475 (9.18)	1908 (11.70)	3894 (12.47)
TSS[-1k, 0k]	2795 (28.65)	243 (4.70)	3360 (20.60)	6398 (20.48)
5′UTR	1094 (11.21)	106 (2.05)	1200 (7.36)	2400 (7.68)
Exon	3121 (31.99)	220 (4.25)	4996 (30.64)	8337 (26.69)
Intron	2797 (28.67)	1940 (37.51)	4566 (28.00)	9303 (29.78)
3′UTR	62 (0.64)	39 (0.75)	551 (3.38)	652 (2.09)
TES[0k, 1k]	291 (2.98)	10 (0.19)	317 (1.94)	618 (1.98)