Prevalence of Anxiety among Hungarian Subjects with Parkinson’s Disease

Table 2

Calculation of the optimal cutoff levels for detecting anxiety based on receiver operating curve analysis.

Scale	Clinical correspondence	Cutoff	Sensitivity	Specificity	AUC	value
Total score of PAS	Any anxiety disorders	12.5	88.6%	79.9%	0.847
Persistent anxiety subscale	Generalized anxiety disorder	9.5	89.3%	81.2%	0.875
Episodic anxiety subscale	Panic disorder	4.5	92.1%	81.5%	0.921
Avoidant anxiety subscale	Avoidant anxiety disorders	3.5	78.4%	82.4%	0.835

Anxiety disorders characterized by avoidance are agoraphobia and social phobia (here taken together as avoidant anxiety disorders). ROC = receiver operating characteristics; AUC = area under the curve; PAS = Parkinson Anxiety Scale.