Table 4.

Percentage values of methylenetetrahydrofolate reductase (MTHFR) methylation stratified by human papillomavirus (HPV) presence and oncogenic potential

	Control group	HPV+ cervical lesions	HPV− cervical lesions	hrHPV	lrHPV
Minimum	0	0	0	0	0
Median	0	55.84	39.3	64.54	20.91
Maximum	10	100	100	100	75.79
Mean	0.87	52.38	35.25	57.4	26.82
Std. Error	0.47	3.66	5.14	3.84	7.41
Lower 95% CI of mean	−0.09	45.08	24.66	49.73	10.52
Upper 95% CI of mean	1.82	59.67	45.83	65.08	43.11
Kruskal–Wallis test				Mann–Whitney test
P value	P < 0.0001				0.0026