Table 2.

Multivariable discriminant analysis for prediction of UCs.

Variables	Wilks’ Lambda	F Value	ODF 1	TDF 2	p Value	Discriminant Function
m/z 1606	0.9742	17.72	1	670	<0.001	0.1925
m/z 1769	0.9707	20.24	1	670	<0.001	0.4932
m/z 2074	0.9377	44.54	1	670	<0.001	0.4941
m/z 2118	0.5894	466.73	1	670	<0.001	‒3.2460
m/z 2423	0.9984	1.04	1	670	<0.001	0.6179
				Constant term		‒0.4905

¹ ODF, one degree of freedom; ² TDF, two degrees of freedom.