Volume 47 | Number 1pt2 | February 2012

Abstract List

Anirban Basu Ph.D., Romina Kee M.D., M.Ph., David Buchanan M.D., M.Ph., Laura S. Sadowski M.D., M.S.


To assess the costs of a housing and case management program in a novel sample—homeless adults with chronic medical illnesses.

Data Source

The study used data from multiple sources: (1) electronic medical records for hospital, emergency room, and ambulatory medical and mental health visits; (2) institutional and regional databases for days in respite centers, jails, or prisons; and (3) interviews for days in nursing homes, shelters, substance abuse treatment centers, and case manager visits. Total costs were estimated using unit costs for each service.

Study Design

Randomized controlled trial of 407 homeless adults with chronic medical illnesses enrolled at two hospitals in hicago, llinois, and followed for 18 months.

Principal Findings

Compared to usual care, the intervention group generated an average annual cost savings of (−)$6,307 per person (95 percent : −16,616, 4,002;  = .23). Subgroup analyses of chronically homeless and those with showed higher per person, annual cost savings of (−)$9,809 and (−)$6,622, respectively. Results were robust to sensitivity analysis using unit costs.


The findings of this comprehensive, comparative cost analyses demonstrated an important average annual savings, though in this underpowered study these savings did not achieve statistical significance.