Clinical characteristics of hemodialysis patients used for the development of a simplified equation for the calculation of creatinine index.

<p><i>Note</i>: Qualitative variables expressed as number (percent). Quantitative variables expressed as mean ± SD for normally distributed variables or median [interquartile range] for non normally distributed variables;</p><p><i>Abbreviations</i>: HDF, hemodiafiltration; HD, hemodialysis; min, minutes.