Table 1.

PLS-DA-based and DT-based predictive performances of the 8-item odor subset compared to the whole odor set (values are shown as estimate ± standard error)

	PLS-DA based		DT based
	8-item subset	40-item set	8-item subset	40-item set
Sensitivity	0.82 ± 0.05	0.79 ± 0.05	0.72 ± 0.05	0.65 ± 0.06
Specificity	0.92 ± 0.04	0.85 ± 0.05	0.85 ± 0.05	0.80 ± 0.05
Positive likelihood ratio	10.05	5.38	4.88	3.29
Negative likelihood ratio	0.19	0.24	0.33	0.44
Negative predictive value	0.82 ± 0.05	0.79 ± 0.05	0.73 ± 0.05	0.67 ± 0.05
Positive predictive value	0.92 ± 0.04	0.86 ± 0.04	0.84 ± 0.05	0.79 ± 0.05
Accuracy	0.868	0.822	0.783	0.721