Neuroanatomical Classification in a Population-Based Sample of Psychotic Major Depression and Bipolar I Disorder with 1 Year of Diagnostic Stability

Table 2

Diagnostic performance of the SVM classifier in the individual discrimination of cases of BD-I and MDD with psychotic features versus controls.

Pairwise comparison	AUC^a	Accuracy	Morphological features^b	Sensitivity	Specificity	PPV	NPV
Psychotic BD-I (𝑛=23)×	0.61	66.1%	99	39.1%	84.8%	64.3%	66.6%
Matched controls (𝑛=33)
Psychotic MDD (𝑛=19)×	0.44	59.6%	80	31.6%	73.7%	37.5%	68.3%
Matched controls (𝑛=38)
Psychotic BD-I (𝑛=23)×	0.52	54.76%	53	57.9%	52.1%	50.0%	60.0%
Psychotic MDD (𝑛=19)

BD-I: bipolar I disorder (first-episode mania); MDD: major depressive disorder; PPV: positive predictive value; NPV: negative predictive value.
aArea under the curve; bnumber of morphological features used for the best classification rate (accuracy).