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Int J Qual Health Care. 2005 Feb;17(1):23-30.

Development of the multi-attribute Pediatric Asthma Health Outcome Measure (PAHOM).

Author information

  • 1Cerner Health Insights, Beverly Hills, CA 90212, USA. cchiou@amgen.com

Abstract

OBJECTIVE:

To develop a multi-attribute outcome measure for children with asthma that allows for the calculation of quality-adjusted life years in cost-effectiveness studies and can also be used to assign preference weights to asthma-symptom-free days.

STUDY DESIGN:

A literature review and two interviewer-administered surveys.

SETTING:

Homes or community centers of participants in Seattle, United States.

MAIN MEASURE:

Visual analog scale (VAS), standard gamble (SG), and relative risk attitude equation techniques were used to estimate two sets of preference weights for 10 health states. The PAHOM was used to record health states of pediatric asthma patients.

RESULTS:

A total of 94 subjects provided complete responses without any illogical ratings to VAS questions and 101 provided the same to SG questions. The VAS preference weights of the health states range from a maximum of 1 for perfect health to a minimum of 0.03 for severe asthma symptoms, emotional problems, and activity limitations. Those based on the relative risk attitude equation constructed with both VAS and SG preference weights range from 1 to 0.06. The mean PAHOM scores of pediatric asthma patients based on VAS and converted SG preference weights were 0.70 and 0.83, respectively.

CONCLUSIONS:

The PAHOM calendar can be used to identify asthma patients' health outcomes, to calculate the preference weights of asthma patients' health states, and to estimate the number of symptom-free days. These factors make the PAHOM a promising instrument for use in effectiveness and cost-effectiveness studies in children with asthma.

PMID:
15668307
DOI:
10.1093/intqhc/mzh086
[PubMed - indexed for MEDLINE]
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