Table 2.

The predicted results of peptidome pattern distinguishing breast cancer patients from health volunteers

Group	Cases		Sensitivity (%)	Specificity (%)	PV +	PV −	YI
	Breast cancer	Health
Model construction	37	36	94.59	88.89	89.74	94.12	0.83
External validation	37	36	91.89	91.67	91.89	91.67	0.83

Abbreviations: PV₊, Positive predict value; PV₋, Negective predict value; YI, Youden index.