In contrast, excessive fluid overload was only associated with significantly decreased pretransplant levels of phosphatidylinositols, and this difference reached only borderline significance ( p = 0.0499, r = 0.6958).
However, all our patients were relatively young, and we could not find any evidence for influence of aging on our identification of patient subsets based on the levels of individual lipid metabolites, and only a difference of borderline significance when comparing the total levels of biochemicals among lipid subsets ( Figure 1 , Table 4 ).
The most significant differences between these two contrasting patient subsets were observed for LPC esters and cholesteryl esters, but highly significant p values were also detected for LPE esters and monoacylglycerol esters.