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Qual Life Res. 2011 Sep;20(7):1023-34. doi: 10.1007/s11136-010-9840-0. Epub 2011 Jan 12.

Development of a frequent heartburn index.

Author information

  • 1United BioSource Corporation, 7101 Wisconsin Ave, Suite 600, Bethesda, MD 20814, USA. Donald.Stull@unitedbiosource.com

Abstract

PURPOSE:

The aim of this study is to develop and validate a brief instrument for the measurement of overall psychosocial impact of frequent heartburn (heartburn experienced 2+ times weekly) in the general U.S. population, yielding a single, composite score.

METHODS:

Item reduction and psychometric analyses of an existing Frequent Heartburn (FHB) Survey, a 52-item, 13-domain, patient-reported outcomes (PRO) survey assessing the impact of frequent heartburn on psychosocial quality of life.

RESULTS:

Item reduction resulted in 9 items from the original FHB Survey measuring all domains. All retained items in this full Frequent Heartburn Index (FHBI-Full) had moderate to strong factor loadings on the underlying factor (range: 0.66-0.85) and acceptable overall model fit (CFI = 0.93, SRMR = 0.04). Coefficient alpha was 0.92. A shorter FHBI (FHBI-Brief) was created that excludes the two employment-related items. The FHBI-Brief had a coefficient alpha of 0.90.

CONCLUSIONS:

Both FHBI versions have good psychometric properties and capture a full range of psychosocial effects of frequent heartburn. Normed national scores for the FHBI are available against which an individual can compare their own FHBI score. The FHBI-Full and FHBI-Brief show promise as PRO instruments that may help individuals and clinicians better understand the effect of frequent heartburn on psychosocial functioning.

PMID:
21225349
[PubMed - indexed for MEDLINE]
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