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Cost-effectiveness of out-of-hospital continuous positive airway pressure for acute respiratory failure : decision analytic modelling using data from a feasibility trial
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Thokala, Praveen, Fuller, Gordon W, Goodacre, Steve, Keating, Samuel, Herbert, Esther, Perkins, Gavin D., Rosser, Andy, Gunson, Imogen, Miller, Joshua, Ward, Matthew, Bradburn, Mike, Harris, Tim, Marsh, Maggie, Ren, Kate and Cooper, Cindy (2021) Cost-effectiveness of out-of-hospital continuous positive airway pressure for acute respiratory failure : decision analytic modelling using data from a feasibility trial. BMC Emergency Medicine, 21 (1). 13. doi:10.1186/s12873-021-00404-8 ISSN 1471-227X.
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Official URL: https://doi.org/10.1186/s12873-021-00404-8
Abstract
Standard prehospital management for Acute respiratory failure (ARF) involves controlled oxygen therapy. Continuous positive airway pressure (CPAP) is a potentially beneficial alternative treatment, however, it is uncertain whether this could improve outcomes and provide value for money. This study aimed to evaluate the cost-effectiveness of prehospital CPAP in ARF. A cost-utility economic evaluation was performed using a probabilistic decision tree model synthesising available evidence. The model consisted of a hypothetical cohort of patients in a representative ambulance service with undifferentiated ARF, receiving standard oxygen therapy or prehospital CPAP. Costs and quality adjusted life years (QALYs) were estimated using methods recommended by NICE. In the base case analysis, using CPAP effectiveness estimates form the ACUTE trial, the mean expected costs of standard care and prehospital CPAP were £15,201 and £14,850 respectively and the corresponding mean expected QALYs were 1.190 and 1.128, respectively. The mean ICER estimated as standard oxygen therapy compared to prehospital CPAP was £5685 per QALY which indicated that standard oxygen therapy strategy was likely to be cost-effective at a threshold of £20,000 per QALY (67% probability). The scenario analysis, using effectiveness estimates from an updated meta-analysis, suggested that prehospital CPAP was more effective (mean incremental QALYs of 0.157), but also more expensive (mean incremental costs of £1522), than standard care. The mean ICER, estimated as prehospital CPAP compared to standard care, was £9712 per QALY. At the £20,000 per QALY prehospital CPAP was highly likely to be the most cost-effective strategy (94%). Cost-effectiveness of prehospital CPAP depends upon the estimate of effectiveness. When based on a small pragmatic feasibility trial, standard oxygen therapy is cost-effective. When based on meta-analysis of heterogeneous trials, CPAP is cost-effective. Value of information analyses support commissioning of a large pragmatic effectiveness trial, providing feasibility and plausibility conditions are met.
| Item Type: | Journal Article | ||||||
|---|---|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School | ||||||
| SWORD Depositor: | Library Publications Router | ||||||
| Journal or Publication Title: | BMC Emergency Medicine | ||||||
| Publisher: | BioMed Central Ltd. | ||||||
| ISSN: | 1471-227X | ||||||
| Official Date: | 25 January 2021 | ||||||
| Dates: |
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| Volume: | 21 | ||||||
| Number: | 1 | ||||||
| Article Number: | 13 | ||||||
| DOI: | 10.1186/s12873-021-00404-8 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Open Access (Creative Commons) |
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