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J Aging Res. 2012;2012:680265. doi: 10.1155/2012/680265. Epub 2011 Aug 16.

Cost effectiveness of a home-based intervention that helps functionally vulnerable older adults age in place at home.

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Jefferson School of Population Health, Doris N. Grandon Center for Health Economics and Outcomes Research, 1015 Walnut Street, Suite 319, Philadelphia, PA 19107, USA.


Evaluating cost effectiveness of interventions for aging in place is essential for adoption in service settings. We present the cost effectiveness of Advancing Better Living for Elders (ABLE), previously shown in a randomized trial to reduce functional difficulties and mortality in 319 community-dwelling elders. ABLE involved occupational and physical therapy sessions and home modifications to address client-identified functional difficulties, performance goals, and home safety. Incremental cost-effectiveness ratio (ICER), expressed as additional cost to bring about one additional year of life, was calculated. Two models were then developed to account for potential cost differences in implementing ABLE. Probabilistic sensitivity analyses were conducted to account for variations in model parameters. By two years, there were 30 deaths (9: ABLE; 21: control). Additional costs for 1 additional year of life was $13,179 for Model 1 and $14,800 for Model 2. Investment in ABLE may be worthwhile depending on society's willingness to pay.

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