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  • Title: A cost-effectiveness analysis of a peak flow-based asthma education and self-management plan in a high-cost population.
    Author: de Asis ML, Greene R.
    Journal: J Asthma; 2004 Aug; 41(5):559-65. PubMed ID: 15360065.
    Abstract:
    BACKGROUND: Asthma education and action plans (AP) have been recognized as important components in the optimal management of asthma. Studies have differed on the importance of a peak flow-based self-management plans in reducing health care costs and use due to asthma exacerbation. OBJECTIVE: To analyze the cost-effectiveness of peak flow-based action plans in reducing costs associated with ER visits and hospitalizations due to acute asthma exacerbation in a population of high-risk and high-cost patients, defined as patients with moderate to severe asthma with a history of recent urgent treatment in the ER or hospitalization due to asthma. METHODS: A literature review of randomized clinical trials comparing peak flow-based (PFB) action plans, symptom-based (SB) action plans, and usual care/no action plan (NAP) was performed. Probability values regarding the effectiveness of each alternative (as measured by increase/decrease in ER visits and hospitalizations over a 6-month period) were derived. Incremental cost-effectiveness and cost-benefit ratios were calculated for each alternative. Sensitivity analyses were performed. RESULTS: For high-risk and high-cost asthma patients, our analysis revealed that the most cost-effective alternative for reducing ER visits was a peak flow-based self-management plan. The peak flow-based self-management program had an incremental cost-effectiveness (C/E) ratio of $ 60.57 per ER visit averted compared to usual care/NAP and a C/E ratio of $31.46 compared to the SB-AP. The PFB-AP was also the most cost-effective in reducing asthma hospitalization costs with an incremental C/E ratio of $300 per hospitalization prevented, compared with usual care and a C/E ratio of $311, compared to a SB-AP. Analysis yielded a cost-benefit ratio of 13.79 for the PFB-AP compared to NAP; the SB-AP had a cost-benefit ratio of 11.53 compared to NAP. CONCLUSION: Cost-effectiveness and cost-benefit analyses reveal that for high-cost patients, a peak flow-based asthma education and self-management plan program is the most cost-effective alternative in reducing costs associated with ER visits and hospitalizations due to asthma exacerbation. Further refinements to this cost-effectiveness analysis including measuring changes in drug use and costs and patients' productivity losses need to be pursued and may demonstrate additional cost-savings due to peak flow-based asthma education plans.
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