The goal of this retrospective observational study is to develop and internally evaluate a prognostic model for overall survival in patients with esophageal squamous cell carcinoma who received neoadjuvant chemoimmunotherapy followed by esophagectomy. Researchers will review existing clinical, pathologic, and follow-up data from 414 patients treated at three medical centers between 2019 and 2025. The study will assess whether routinely available clinicopathologic factors can provide prognostic information beyond postoperative pathologic staging.
Study Type
OBSERVATIONAL
Enrollment
414
West China Hospital, Sichuan University
Chengdu, Sichuan, China
Mianzhu People's Hospital (West China Mianzhu Hospital, Sichuan University)
Mianzhu, Sichuan, China
Suining Central Hospital
Suining, Sichuan, China
Overall Survival (OS)
Overall survival is defined as the interval from the date of esophagectomy to death from any cause. Participants alive at last contact are censored on the date of last follow-up.
Time frame: From the date of esophagectomy to death or last follow-up, up to 73 months.
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