Table 1.

Sensitivity and specificity of fluorescence for tumor surface samples

Samples	Group 1	Group 2	Both groups	Surgeons
Concentration (μM)	5	2.5
Sensitivity (%)	100	46	71	60
Specificity (%)	75	88	83	95
PPV	80	79	83	93
NPV	100	61	73	71
AUC	0.88	0.65	0.78	NA
95 % CI	0.88–1	0.53–0.833	0.68–0.88	NA

PPV Positive predictive value, NPV Negative predictive value, AUC Area under the curve, CI Confidence interval