Table 4.

Characteristics of participants in treatment outcome studies for hoarding disorder.

	Number of overall medical and psychiatric comorbidities, mean (SD)	t	df	p
Attrition
Dropped out of treatment (n = 23)	4.43 (3.31)	1.48	98	0.072
Completed treatment (n = 83)	3.56 (2.21)
Treatment response on the savings inventory – revised (SI-R) total
Responder (n = 37)	3.26 (2.15)	1.48	98	0.072
Non-Responder (n = 69)	4.03 (2.67)
Treatment response on the clutter image rating (CIR)
Responder (n = 58)	3.19 (2.09)	2.47	98	0.008
Non-responder (n = 48)	4.40 (2.81)