A Weibull Model of the Survival Time Distribution of Gastric Cancer

This paper proposes a simple method to fit the sarvival time distribution of gastric cancer in Changle.By using non-parameter method and linear regression the parameters in the Weibull model are estimated.The results show that the Weibull model fitting by this method is suitable to the sample and the hazard function of gastric cancer cases in Changle is decrease with time increasing.