Abolfazl Nikpour - Student Research Committee, Faculty of Health, Mazandaran University of Medical Sciences, Sari, Iran
Alireza khalilian - Cancer Research Center, Mazandaran University of Medical Sciences, Sari, Iran
Iradj Maleki - Faculty of Nursing, Mazandaran University of Medical Sciences, Behshahr, Iran
Hossein Mohsenipouya - Faculty of Nursing, Mazandaran University of Medical Sciences, Behshahr, Iran
Jamshid Yazdani Charati - Department of Biostatistics, Health Sciences Research Center, Addiction Institute, Mazandaran University of Medical Sciences, Sari, Iran

Background: The survival of gastric cancer because of the advances in this type of cancer cures has been increased during the lastdecades. Aim: Survey of the survival levels of gastric cancer and its effective causes.Methods: 643 patients evolved by gastric cancer referred to Imam Khomeini hospital of Sari (2007- 2013) were studied. According tothis method, the numbers of 74 patients were neglected because of defective data, and the number of 569 patients went under study.The level of survival was determined by use of Kaplan Meier, so to determine the causes affecting on the patients survival, theunivariate analysis of Log-rank test was used. Results: Regarding the follow up of these patients during 2013 Nov- Dec the one, 2, 3, 4 and 5 years of survival of these patients were estimated equal to 0.77, 0.65, 0.52, 0.44, 0.27 percent and the survival median equal to 19 months, so survival means equal to 24.49 months. Based on the ranked logarithm test and FDR method some variables like stage (p<0.001) Radiotherapy (p<0.005) andundergo Surgery before Adjuvant chemotherapy (p<0.001) were determined as the effective factors on the survival probability.Implications for practice: The life length of the patients under this article in comparison with developed countries is shallow that mightbe because of late reference or delayed diagnosis and the shortness of cure facilities. In this way, some materials like soon diagnosis andscreen methods could be effective on the increase in patients survival.

Gastric cancer, Survival analysis, Kaplan Meier estimate Ethical approval code: IR.MAZUMS.REC.1394.1440