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The patients with stage III non-small cell lung cancer own a poor prognosis. We aimed to study the clinical characteristics of the patients with stage III non-small cell lung cancer and more than 5 years overall survival and establish a prognosis prediction model. A total of 5792 patients were separated from the Surveillance, Epidemiology, and End Results database between 2011 and 2015. Cox regression was performed to select the predictors of overall survival. The validation of the nomogram was implemented by using the concordance index,