Figure 2

OPLS-DA scores plot showing the variation between urinary metabolic profiles of the Plasmodium vivax- infected patients and healthy individuals. This model was constructed from ¹H NMR data of urine from 21 P. vivax-infected individuals and 21 healthy individuals. The subjects were all male. Each point in the plot represents one sample ¹H NMR spectra. Black square = P. vivax- infected individual and red circle = healthy individual. The t[1] axis represents the predictive variation among the classes and the to[1] axis represents the variation orthogonal to the class specific variation. The statistical parameters of the model were as follows- R²X = 0.41 and Q²(cum) = 0.67. The ellipse is a 95% Hotelling's T² ellipse.