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Related Concept Videos

Longitudinal Research02:20

Longitudinal Research

Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
Longitudinal Studies01:26

Longitudinal Studies

Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
The Effect of Aging on Tissues01:19

The Effect of Aging on Tissues

Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...

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Related Experiment Video

Updated: May 23, 2026

Assessment of Dependence in Activities of Daily Living Among Older Patients in an Acute Care Unit
06:52

Assessment of Dependence in Activities of Daily Living Among Older Patients in an Acute Care Unit

Published on: September 30, 2020

Hearing, mobility, and pain predict mortality: a longitudinal population-based study.

David Feeny1, Nathalie Huguet, Bentson H McFarland

  • 1Kaiser Permanente Northwest Center for Health Research, Portland, OR 97204-1030, USA. dafeeny@comcast.net

Journal of Clinical Epidemiology
|April 24, 2012
PubMed
Summary
This summary is machine-generated.

Health-related quality of life (HRQL) measures, specifically ambulation, hearing, and pain, are linked to mortality risk. This study highlights specific HRQL components that predict mortality, especially in older adults.

Related Experiment Videos

Last Updated: May 23, 2026

Assessment of Dependence in Activities of Daily Living Among Older Patients in an Acute Care Unit
06:52

Assessment of Dependence in Activities of Daily Living Among Older Patients in an Acute Care Unit

Published on: September 30, 2020

Area of Science:

  • Health Services Research
  • Epidemiology
  • Gerontology

Background:

  • Health-related quality of life (HRQL) assessments, such as the Health Utilities Index Mark 3 (HUI3), are recognized predictors of mortality.
  • The HUI3 instrument evaluates eight distinct attributes: vision, hearing, speech, ambulation, dexterity, cognition, emotion, and pain/discomfort, each with varying levels of disability.

Purpose of the Study:

  • To investigate the association between individual Health Utilities Index Mark 3 (HUI3) attributes and mortality.
  • To identify specific components of HRQL that independently predict mortality risk.

Main Methods:

  • Utilized baseline and 12-year follow-up data from the 1994/95 Canadian National Population Health Survey, a closed longitudinal cohort.
  • Included 12,375 adults aged 18 and older.
  • Employed Cox proportional hazards regression models, adjusting for established health determinants and risk factors.

Main Results:

  • Ambulation (HR=0.10), hearing (HR=0.18), and pain (HR=0.53) utility scores were significantly associated with increased mortality risk.
  • Ambulation and hearing deficits specifically predicted mortality in the cohort aged 60 and older.

Conclusions:

  • This research innovatively identifies hearing and pain as significant risk factors for mortality, areas less explored in previous studies.
  • Highlights the importance of specific HRQL components in predicting mortality.
  • Recommends further investigation into the mechanisms linking hearing and pain impairments to mortality.