To describe variation within the data, we present percentages together with the 95% confidence intervals (CI) based on the binomial distribution. We used non-parametric statistical methods for hypothesis testing. The non-parametric Spearman’s rank correlation was used to analyze correlation between CDG and KPS, duration of hospital stay and treatment cost. Statistical analyses were performed with custom scripts in Matlab (Version 2014b). Statistical significance was accepted at the p < 0.05 level.
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