One hundred and one patients who were diagnosed with primary MDS during 2003-2011 in a tertiary care university hospital Hematology department were included in the study.
While IPSS, WPSS, MPSS and IPSS-R risk categories increased, leukemia free survival and overall survival decreased (p<0.001). When IPSS, WPSS, MPSS and IPSS-R prognostic systems were compared by Cox regression analysis WPSS was the best in predicting leukemia-free survival (p<.001), and WPSS (<.001) and IPSS-R (p = 0.037) were better in predicting overall survival.