Journal
SLEEP
Volume 38, Issue 7, Pages 1027-1037Publisher
OXFORD UNIV PRESS INC
DOI: 10.5665/sleep.4804
Keywords
cost effectiveness analysis; cost minimization analysis; home sleep testing; obstructive sleep apnea; operating margin; out-of-center testing; portable monitor; sleep medicine
Categories
Funding
- American Sleep Medicine Foundation [38-PM-07]
- ResMed
- Cephalon
- Apnex Medical
- Philips Respironics
- ResMed Inc.
- Dymedic, Inc.
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Study Objectives: We conducted an economic analysis of the HomePAP study, a multicenter randomized clinical trial that compared home-based versus laboratory-based testing for the diagnosis and management of obstructive sleep apnea (OSA). Design: A cost-minimization analysis from the payer and provider perspectives was performed, given that 3-mo clinical outcomes were equivalent. Setting: Seven academic sleep centers. Participants: There were 373 subjects at high risk for moderate to severe OSA. Interventions: Subjects were randomized to either home-based limited channel portable monitoring followed by unattended autotitration with continuous positive airway pressure (CPAP), versus a traditional pathway of in-laboratory sleep study and CPAP titration. Measurements and Results: From the payer perspective, per subject costs for the laboratory-based pathway were $1,840 (95% confidence interval [CI] $1,660, $2,015) compared to $1,575 (95% CI $1,439, $1,716) for the home-based pathway under the base case. Costs were $264 (95% CI $39, $496, P = 0.02) in favor of the home arm. From the provider perspective, per subject costs for the laboratory arm were $1,697 (95% CI $1,566, $1,826) compared to $1,736 (95% CI $1,621, $1,857) in the home arm, for a difference of $40 (95% CI -$213, $142, P = 0.66) in favor of the laboratory arm under the base case. The provider operating margin was $142 (95% CI $85, $202, P < 0.01) in the laboratory arm, compared to a loss of -$161 (95% CI -$202, -$120, P < 0.01) in the home arm. Conclusions: For payers, a home-based diagnostic pathway for obstructive sleep apnea with robust patient support incurs fewer costs than a laboratory-based pathway. For providers, costs are comparable if not higher, resulting in a negative operating margin.
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