text_1: Primary cervical cytology screening with HPV detection has higher longitudinal sensitivity to detect severe cervical intraepithelial neoplasia than conventional cytology.
text_2: Pooling both phases, the detection ratio of CIN2 for women aged 25-34 years was 4.09 (2.24-7.48) at round one and 0.64 (0.23-1.27) at round two.