Patient characteristics, presented for the total population and separately for patients with early and advanced stage disease classified with the FIGO 2009 staging system.

The proportions are calculated over the total number of patients for which the variable is recorded, the proportion of missing values is calculated over the total number of patients.各类占比均以该变量存在记录的患者总人数为计算基数；缺失值占比则以全部患者总人数为计算基数。