Comparison of frequencies of MB-COMT, DRD2 and NR3C1 methylation between SCZ patients with control
Methylation	Genotype	Schizophrenia	Healthy Control	OR	95% Cl	p*
		n = 110 (%)	n = 100 (%)
COMT	Unmethylation	68 (61.8)	43 (43.0)	0.466	0.268-0.809	.006*
	Partial Methylation	42 (38.2)	57 (57.0)	0.466	0.268-0.809
DRD2	Unmethylation	0 (0.0)	14 (14)	0.439	0.375-0.514	.000*
	Partial Methylation	110 (100.0)	86 (86)	0.439	0.375-0.514
NR3C1	Unmethylation	107 (97.3)	9 (9)	0.003	0.001-0.011	.000*
	Partial Methylation	3 (2.7)	91 (91)	0.003	0.001-0.011
Abbreviations	*, Pearson chi-square	OR, odds ratio	CI, confidence interval