Background Overhydration in chronic renal insufficiency may lead to an increased risk of mortality. In dialysis patients bio-impedance analysis is used to determine volume status, whereas, in pre-dialysis patients volume status is mostly determined on „clinical assessment‟. In this study comparison between …

Estimation of the factor model by unweighted least squares (ULS) is distribution free, yields consistent estimates, and is computationally fast if the Minimum Residuals (MinRes) algorithm is employed. MinRes algorithms produce a converging sequence of monotonically decreasing ULS function values. Various …