Figure 3

PLS regression performance. Cross-validated PLS regression model performance as viewed by a predicted (NMR-TG) versus measured (UC-TG) plot for the 153 plasma samples (A). This 3-component model is based on the spectral region 1.05-1.4 ppm and gives a correlation, R², of 0.92 and a RMSECV of 0.156 mmol/L. The equation of the obtained linear regression is y = 0.9955x + 0.0035 mmol/L. The main lipid spectral region and its PLS regression coefficients are plotted superimposed (B) showing that only the left part of both the methylene and methyl peaks are informative for Chylomicron TG determination.