Journal of Clinical Epidemiology
Volume 58, Issue 2 , Pages 138-141, February 2005

A cohort study found the RAND-12 and Health Utilities Index Mark 3 demonstrated construct validity in high-risk primary care patients

  • David Feeny, PhD

      Affiliations

    • Institute of Health Economics, #1200, 10405 Jasper Avenue, Edmonton, Alberta, T5J 3N4, Canada
    • Departments of Economics and Public Health Sciences, University of Alberta, Edmonton, Alberta, T6G 2G3, Canada
    • Health Utilities Incorporated, 88 Sydenham St, Dundas, ON L9H 2V3, Canada
    • Corresponding Author InformationCorresponding author. Northwest and Hawaii Kaiser Permanente, Northwest Region, Center for Health Research, 3800 North Interstate Ave., Portland, OR 97227-1110.
    • ,
  • Karen Farris, PhD

      Affiliations

    • College of Pharmacy, University of Iowa, Iowa City, IA 52242-1112, USA
    • ,
  • Isabelle Côté, PhD

      Affiliations

    • Innovus Research Inc., 1016-A Sutton Drive, Burlington, Ontario, L7L 6B8, Canada
    • ,
  • Jeffrey A. Johnson, PhD

      Affiliations

    • Department of Public Health Sciences, University of Alberta, Edmonton, Alberta, T6G 2G3, Canada
    • ,
  • Ross T. Tsuyuki, PharmD, MSc

      Affiliations

    • EPICORE Centre, Division of Cardiology, 220 College Plaza, University of Alberta, Edmonton, Alberta, T6G 2C8, Canada
    • ,
  • Ken Eng, MA

      Affiliations

    • Institute of Health Economics, #1200, 10405 Jasper Avenue, Edmonton, Alberta, T5J 3N4, Canada

Accepted 2 August 2004.

Abstract 

Objective

The Short Form 12 (SF-12) is widely used in primary care settings. The RAND-12 Health Status Inventory (HSI) and the Health Utilities Index Mark 3 (HUI3) have not been as widely used in such settings. The objective of this study was to examine the construct validity of the RAND-12 and HUI3 in the context of high-risk primary care patients.

Study design and setting

The SF-12, HUI2, and HUI3 were administered to a cohort of high-risk primary care patients. RAND-12 summary scores for physical and mental health were generated. Single-attribute utility scores for each dimension of health status and overall health in HUI3 were computed. A priori hypotheses were specified.

Results

In general, the relationships among RAND-12 and HUI3 scores were consistent with construct validity. Twelve of 24 a priori predictions were confirmed. However, predictions about the correlations between the number of medical conditions and the number of medications and the measures of health-related quality of life were, in general, not confirmed.

Conclusions

The RAND-12 and HUI3 seem to be useful among primary care patients with diverse chronic conditions. Further investigation is warranted.

To access this article, please choose from the options below

Login to an existing account or Register a new account.

  • Purchase this article for 31.50 USD (You must login/register to purchase this article)

    Online access for 24 hours. The PDF version can be downloaded as your permanent record.

  • Subscribe to this title

    Get unlimited online access to this article and all other articles in this title 24/7 for one year.

  • Claim access now

    For current subscribers with Society Membership or Account Number.

  • Visit SciVerse ScienceDirect to see if you have access via your institution.
 

 David Feeny has proprietary interest in Health Utilities Incorporated, which distributes copyrighted Health Utilities Index materials.Financial support for the study of primary healthcare teams was provided by a grant from the Health Transition Fund Alberta Health and Wellness. Financial support for the analyses presented in this paper was provided by a grant from the Merck Company Foundation to the Institute of Health Economics. The HTF, Merck Company Foundation, and IHE played no role in the design, interpretation, or analysis of the project reported here and have not reviewed or approved of this manuscript.

PII: S0895-4356(04)00233-1

doi:10.1016/j.jclinepi.2004.08.005

Journal of Clinical Epidemiology
Volume 58, Issue 2 , Pages 138-141, February 2005

Article Tools