(1)H NMR-based metabolic profiling of urinary tract infection: combining multiple statistical models and clinical data.

The PCA analysis of the baseline samples after the removal of spectral regions of paracetamol and its metabolites did not show separation between UTI patients and controls within the scores plot of the first two principal components; however, a clear trend was identified along the third principal component (Fig. 2 ), which means that inter-individual variability is to a certain extent more prominent than the disease effect.

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