Implementation and evaluation of a community-based treatment for late-life hoarding.

Objectives: The objective of this paper was to examine the implementation and effectiveness of a community-based intervention for hoarding disorder (HD) using Cognitive Rehabilitation and Exposure/Sorting Therapy (CREST).

Design: This was a mixed-method, pre-post quasi-experimental study informed by the Practical, Robust Implementation and Sustainability Model for implementation science.

Setting: Program activities took place in San Diego County, mainly within clients' homes or community, with some activities in-office.