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Purpose: To evaluate patient and graft survivals in kidney recipients and factors impacting on survival rates at Kermanshah. Materials and Methods: This study was done on 712 kidney transplants from 1989 through 2001 in Kermanshah. One of the most important applications of survival analysis is assessing the role of explanatory factors in the studied event. In this study Kaplan-Meier method was used to calculate patient and graft survivals and in order to determine the factors affecting survival, Cox proportional hazard model was used. The iterations in Cox model was four times and the inclusion and exclusion criteria, calculated by forward conditional method were less than 5% and 10%, respectively. Results: Of the recipients, 47.6% were female and most of them (94.4%) had received kidneys from living unrelated donors. One-year patient survivals in recipients from living unrelated donors (LURD) and living …