Part 2: Myelodysplastic syndromes – classification systems

The relationship between red cell distribution width and prognostic scores in myelodysplastic syndrome

“…11 The following were used to estimate the prognosis: the International Prognostic Scoring System (IPSS), bone marrow blast percentage, karyotype analysis and cytopenia parameters; the WHO Classification-based Prognostic Scoring System (WPSS), WHO category, karyotype analysis and transfusion requirement parameters; the Low Risk Prognostic Scoring System (LR-PSS), presence of poor cytogenetics, age, hemoglobin, platelet levels and bone marrow blast percentage parameters, and; the Revised IPSS (IPSS-R), bone marrow blast ratio, karyotype analysis and hemoglobin-platelet-absolute neutrophil level parameters. 12 The PASW for Windows, version 21.0 (SPSS Inc., Chicago, IL, USA), was used for statistical assessment. The compatibility of continuous variables with the normal distribution was performed with visual (histogram and probability graphics) and analytical methods (Kolmogorov–Smirnov/Shapiro–Wilk tests).…”