Prevalence of Cognitive Impairment in Older Adults with Heart Failure

Authors

  • Tanya R. Gure MD,

    Corresponding author
    • Division of Geriatric and Palliative Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
    Search for more papers by this author
  • Caroline S. Blaum MD, MS,

    1. Division of Geriatric and Palliative Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
    2. Geriatric Research, Clinical and Education Center, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan
    Search for more papers by this author
  • Bruno Giordani PhD,

    1. Department of Psychiatry, University of Michigan, Ann Arbor, Michigan
    Search for more papers by this author
  • Todd M. Koelling MD,

    1. Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
    Search for more papers by this author
  • Andrzej Galecki MD, PhD,

    1. Division of Geriatric and Palliative Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
    2. Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
    3. Institute of Gerontology, University of Michigan, Ann Arbor, Michigan
    Search for more papers by this author
  • Susan J. Pressler PhD,

    1. School of Nursing, University of Michigan, Ann Arbor, Michigan
    Search for more papers by this author
  • Scott L. Hummel MD, MS,

    1. Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
    2. Division of Cardiology, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan
    Search for more papers by this author
  • Kenneth M. Langa MD, PhD

    1. Division of General Internal Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
    2. Center for Practice Management and Outcomes Research, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan
    3. Institute for Social Research, University of Michigan, Ann Arbor, Michigan
    Search for more papers by this author

Address correspondence to Tanya R. Gure, Division of Geriatric and Palliative Medicine, Department of Internal Medicine, University of Michigan, 300 North Ingalls Bldg., Rm. 901, Ann Arbor, MI 48109. E-mail: tanruff@umich.edu

Abstract

Objectives

To determine the prevalence of cognitive impairment in older adults with heart failure (HF).

Design

Cross-sectional analysis of the 2004 wave of the nationally representative Health and Retirement Study linked to 2002 to 2004 Medicare administrative claims.

Setting

United States, community.

Participants

Six thousand one hundred eighty-nine individuals aged 67 and older.

Measurements

An algorithm was developed using a combination of self- and proxy report of a heart problem and the presence of one or more Medicare claims in administrative files using standard HF diagnostic codes. On the basis of the algorithm, three categories were created to characterize the likelihood of a HF diagnosis: high or moderate probability of HF, low probability of HF, and no HF. Cognitive function was assessed using a screening measure of cognitive function or according to proxy rating. Age-adjusted prevalence estimates of cognitive impairment were calculated for the three groups.

Results

The prevalence of cognitive impairment consistent with dementia in older adults with HF was 15%, and the prevalence of mild cognitive impairment was 24%. The odds of dementia in those with HF were significantly higher, even after adjustment for age, education level, net worth, and prior stroke (odds ratio = 1.52, 95% confidence interval = 1.14–2.02).

Conclusion

Cognitive impairment is common in older adults with HF and is independently associated with risk of dementia. A cognitive assessment should be routinely incorporated into HF-focused models of care.

Ancillary