Table 2.

Differences in the Promoter Methylation and Expression Levels of miRNAs among the Groups after Adjustment for Covariates

Variable	miR-200a						miR-200b
	Promoter methylation			miRNA expression			Promoter methylation			miRNA expression
	df	F	p-value	df	F	p-value	df	F	p-value	df	F	p-value
Age	1	0.482	0.490	1	0.016	0.900	1	0.004	0.952	1	0.565	0.455
Sex	1	0.709	0.402	1	1.175	0.282	1	0.329	0.568	1	1.343	0.250
Group	2	8.104	0.001	2	6.468	0.003	2	8.977	<0.001	2	8.415	0.001

miRNA, microRNA; df, degree of freedom; F, variance ratio.