Table 2.

OPLS-DA prediction parameters. R²X and R²Y represent the explained sum of squares for X and Y of the OPLS-DA model and Q² indicates the prediction ability of the model.

Group Comparison		R2X	R2Y	Q2
BD×CT	p1	0.061	0.259	0.020
	o1	0.176	0.310	0.045
SZ×CT	p1	0.064	0.415	0.292
	o1	0.127	0.299	0.169
BD×SZ	p1	0.106	0.253	0.052
	o1	0.148	0.183	−0.054

p1, predictive component; o1, orthogonal component.