A preoperative and intraoperative scoring system to predict nodal metastasis in endometrial cancer

Objective To develop a scoring system that guides surgical decision‐making regarding the need to perform lymphadenectomy. Methods A retrospective study was performed of patients who underwent complete surgical staging of endometrial cancer between 2003 and 2014 at three centers in Brazil. Preoperative and intraoperative risk factors were used to develop a scoring system to predict lymph node metastasis. Results Among 329 patients included, 71 (21.6%) had positive lymph nodes and 259 (78.4%) had negative lymph nodes. The characteristics associated with nodal metastasis in univariate analysis included the level of cancer antigen 125 (P