A nomogram-based overall survival stratification to identify uterine sarcoma patients without distant metastases who may benefit from adjuvant radiotherapy

•The nomogram provides a possible way to estimate the overall survival rates of uterine sarcoma patients.•The nomogram-based prognostic stratification can identify patients who may benefit from radiotherapy.•The newly defined high-risk uterine sarcoma patients can obtain significant overall survival benefits from radiotherapy.•This is the first study using a nomogram to identify uterine sarcoma patients who can benefit from radiotherapy.