The Association between Deoxyribonucleic Acid Hypermethylation in Intron VII and Human Leukocyte Antigen-C07 Expression in Patients with Endometriosis

Table 1

General characteristics and HLA-C typing of the study participants.

Microarray study	Patients with ovarian endometriosis (n = 6)	Healthy controls (n = 6)
Age (years, mean ± SD)	33.4 ± 4.1	32.5 ± 3.6
BMI (kg/m^2, mean ± SD)	24.2 ± 3.2	25.1 ± 2.9
Stage I-II (n)	4	NA
Stage III-IV (n)	2	NA
HLA-C typing
HLA-C07 carrier (n)	6	3
Non-HLA-C07 carrier (n)	0	3
Validation study	Patients with ovarian endometriosis (n = 22)	Healthy controls (n = 26)
Age (years, mean ± SD)	32.3 ± 3.8	32.9 ± 4.3
BMI (kg/m^2, mean ± SD)	22.2 ± 3.9	24.3 ± 3.4
Stage I-II (n)	16	NA
Stage III-IV (n)	6	NA
HLA-C typing
HLA-C07 carrier (n)	8	8
Non-HLA-C07 carrier (n)	14	18

NA, not applicable.