Assessment of periportal fibrosis in Schistosomiasis mansoni patients by proton nuclear magnetic resonance-based metabonomics models

Table 3 Confusion matrix-orthogonal projections to latent structures discriminant analysis metabonomics model (mild vs significant periportal fibrosis) of 41 patients with Schistosomiasis mansoni, Pernambuco, Brazil, 2020

		Classification from WHO Niamey Protocol
		Significant PPF	Mild PPF	P valuea
Metabonomics Model	Significant PPF	28	0	< 0.0001
	Mild PPF	3	10

^aFisher’s exact test. 92.7% accuracy, 90.3% sensitivity, 100% specificity. PPV and NPV value equal to 100% and 76.9%, respectively.

PPF: Periportal fibrosis; WHO: World Health Organization.