Sağkalım Çözümlemesi için Zayıflık Modeli ve Mide Kanseri Hastalarına İlişkin Verilerle Bir Uygulama

Abstract

The Cox regression model is the most commonly used regression model for survival data and sensitive to proportional hazards. In the violation of proportional hazards, several survival models are suggested. In this study, frailty model was investigated in case of nonproportional hazards and a numerical example which includes a data of stomach cancer patients is done to clarify the model.