Demographic and clinical characteristics for early cervical cancer
There were 800 women in the study population. Table 1 illustrates the baseline characteristics of patients with early cervical cancer. The median (IQR) age was 48 (41-55) years, and the most common histology was squamous cell carcinoma (n=710, 88.8%). According to the FIGO-2018 staging criteria, we restaged these 800 women from FIGO-2009 to FIGO-2018 (Figure S1). The revised FIGO-2018 system has resulted in stage migration in many women with early-stage cervical cancer. Stage migration occurred in 47.13% (377/800) due to tumour size (36.5%, 292/800) or nodal metastases (10.63%, 85/800). The most common clinical stage was IB1 (n =231, 28.88%), followed by IB2 (n = 206, 25.75%) and IIIC (n = 158, 19.75%).
The median delay time for the whole cohort was 12 weeks; 352 (44%) women had a delay time <12 weeks, and 448 (56%) had a delay time ≥12 weeks. There were no significant differences between the two groups in terms of the presence of LVSI, depth of invasion, tumour size, parametrial invasion, etc (Table 1).