Table 3.

Predictive power of hypersomnia indices at baseline for IDS-C depressive symptoms at follow-up in the bipolar group (N=42).

Hypersomnia Index	Sensitivity	Specificity	Positive Predictive Value	Negative Predictive Value	d'	Area Under Curve
DSISDa	0.21	0.93	0.60	0.69	0.65	0.68
IDS-SRb	0.47	0.44	0.32	0.60	-0.22	0.43
IDS-Cc	0.46	0.86	0.67	0.83	0.92	0.74
BDI-IId	0.43	0.81	0.73	0.68	0.71	0.69
Sleep Diary Total Sleep Time	0.09	0.98	0.67	0.71	.073	0.70
Sleep Diary Time in Bed	0.36	0.64	0.31	0.70	0.01	0.50

^aDSISD = Duke University Structured Interview for Sleep Disorders

^bIDS-SR = Inventory of Depressive Symptomotology, Self Report Version

^cIDS-C = Inventory of Depressive Symptomotology, Clinician Version

^dBDI-II = Beck Depression Inventory, Second Edition