The survival period of ovarian cancer patients is influenced by various factors including the specific stage of the cancer, whether there is residual tumor after surgery, the size of any residual tumor, the pathological type of the cancer, the presence of high-risk factors for recurrence such as vascular tumor thrombus, neural invasion, lymph node metastasis, etc., as well as the patient's age, overall condition, the presence of severe comorbidities, and the patient's response and sensitivity to treatments like radiotherapy and chemotherapy. Survival periods vary due to differences in stages and treatment sensitivities, meaning it cannot be generalized; there is significant individual variation in survival outcomes.