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Effect of new disability subtype on 3-year mortality in Chinese older adults.

Publication ,  Journal Article
Feng, Q; Hoenig, HM; Gu, D; Yi, Z; Purser, JL
Published in: J Am Geriatr Soc
October 2010

OBJECTIVES: To examine a new method of classifying disability subtypes by combining self-reported and performance-based tools to predict mortality in older Chinese adults. DESIGN: Prospective cohort study. SETTING: Community-dwelling older adults. PARTICIPANTS: Sixteen thousand twenty Chinese adults aged 65 and older from the Chinese Longitudinal Healthy Longevity Survey (CLHLS). MEASUREMENTS: Self-reported activities of daily living (ADLs) and physical performance (PP) tests (chair standing, lifting a book from floor, turning 360°) cross-classified to create mutually exclusive disability subtypes: subtype 0 (no limitations in PP or ADLs), subtype 1 (limitations in PP, no limitations in ADLs), subtype 2 (no limitations in PP, limitations in ADLs), and subtype 3 (limitations in PP and ADLs). Outcome was mortality over 3 years. RESULTS: Cox proportional hazard models, controlling for sociodemographic variables, living situation, healthcare access, social support, health status, and life-style, showed that older adults without any limitations in ADLs or PP had significantly lower mortality risk than those with other disability subtypes and that there was a graded pattern of greater mortality according to subtype 1 (hazard ratio (HR)=1.31, 95% confidence interval (CI)=1.20-1.42), 2 (HR=1.39, 95% CI=1.23-1.59), and 3 (HR=1.88, 95% CI=1.72-2.05). When compared with the average survival curve in the cohort, subtypes of isolated performance deficits or self-reported disability did not substantially discriminate risks of death over 3 years. CONCLUSION: Combined use of self-reported and PP tools is necessary when screening for mutually exclusive disability subtypes that confer significantly higher or lower mortality risks on a population of older adults.

Duke Scholars

Published In

J Am Geriatr Soc

DOI

EISSN

1532-5415

Publication Date

October 2010

Volume

58

Issue

10

Start / End Page

1952 / 1958

Location

United States

Related Subject Headings

  • Time Factors
  • Survival Rate
  • Risk Assessment
  • Prospective Studies
  • Proportional Hazards Models
  • Motor Activity
  • Male
  • Humans
  • Geriatrics
  • Follow-Up Studies
 

Citation

APA
Chicago
ICMJE
MLA
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Feng, Q., Hoenig, H. M., Gu, D., Yi, Z., & Purser, J. L. (2010). Effect of new disability subtype on 3-year mortality in Chinese older adults. J Am Geriatr Soc, 58(10), 1952–1958. https://doi.org/10.1111/j.1532-5415.2010.03013.x
Feng, Qiushi, Helen M. Hoenig, Danan Gu, Zeng Yi, and Jama L. Purser. “Effect of new disability subtype on 3-year mortality in Chinese older adults.J Am Geriatr Soc 58, no. 10 (October 2010): 1952–58. https://doi.org/10.1111/j.1532-5415.2010.03013.x.
Feng Q, Hoenig HM, Gu D, Yi Z, Purser JL. Effect of new disability subtype on 3-year mortality in Chinese older adults. J Am Geriatr Soc. 2010 Oct;58(10):1952–8.
Feng, Qiushi, et al. “Effect of new disability subtype on 3-year mortality in Chinese older adults.J Am Geriatr Soc, vol. 58, no. 10, Oct. 2010, pp. 1952–58. Pubmed, doi:10.1111/j.1532-5415.2010.03013.x.
Feng Q, Hoenig HM, Gu D, Yi Z, Purser JL. Effect of new disability subtype on 3-year mortality in Chinese older adults. J Am Geriatr Soc. 2010 Oct;58(10):1952–1958.
Journal cover image

Published In

J Am Geriatr Soc

DOI

EISSN

1532-5415

Publication Date

October 2010

Volume

58

Issue

10

Start / End Page

1952 / 1958

Location

United States

Related Subject Headings

  • Time Factors
  • Survival Rate
  • Risk Assessment
  • Prospective Studies
  • Proportional Hazards Models
  • Motor Activity
  • Male
  • Humans
  • Geriatrics
  • Follow-Up Studies