Relative expression of miR-146a in cervical tissues from (A) Han and (B) Uygur. qRT-PCR was performed to measure the levels of miR-146a. For Han women, 26, 60 and 15 cases were included in the cervicitis, CIN and cervical cancer groups, respectively. For Uygur women, 9, 39 and 14 cases were included in the cervicitis, CIN and cervical cancer groups, respectively. *P ≤ 0.001 compared with cervicitis group. CIN, cervical intraepithelial neoplasia.