We also reported a negative association between CIN1 regression and methylation at Insulin-Like Growth Factor 2, Antisense (IGF2AS) and Paternally Expressed Gene 10 (PEG10) DMR in a study of CIN1 cases drawn from the Duke University Cervical Intraepithelial Neoplasia Cohort Study (CINCS) [17]. This evidence concerns the gene IGF2-AS and cervical intraepithelial neoplasia.