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Related Concept Videos

Classification of Illness01:17

Classification of Illness

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The meaning of illness is individualized to each person who experiences an alteration in health. In contrast, disease is a medical term indicating a pathological change in the structure and function of the body or mind. It is a condition that has specific symptoms and boundaries.
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The person's health status fluctuates continually, varying from being in good health to becoming ill and returning to being healthy. To understand the concept of illness prevention, there are two models. First, the health-illness continuum model is a graphic representation of an individual's wellness. It states that a person is considered healthy in the absence of physical disease and the presence of good emotional health.
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The hazard rate, also known as the hazard function or failure rate, is a statistical measure used to describe the instantaneous rate at which an event occurs, given that the event has not yet happened. From a probabilistic perspective, it represents the likelihood that a subject will experience the event in a very small time interval, conditional on surviving up to the beginning of that interval. In terms of frequency, the hazard rate can be viewed as the ratio of the number of events to the...
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Intellectual disability (ID) is a neurodevelopmental condition characterized by deficits in intellectual and adaptive functioning that manifest during the developmental period. This condition encompasses challenges in reasoning, memory, problem-solving, and learning, accompanied by impairments in everyday life skills, such as communication, self-care, and social interactions. Intellectual disability affects approximately 1% of the population in the United States, impacting an estimated 5...
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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...
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Related Experiment Video

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Health status changes with transitory disability over time.

Andrew Myers1, Bryce Ward1, Jennifer Wong2

  • 1University of Montana, Missoula, MT, USA.

Social Science & Medicine (1982)
|November 6, 2019
PubMed
Summary
This summary is machine-generated.

The American Community Survey disability questions capture both long-term and temporary disabilities. Changes in disability status correlate with changes in health-related quality of life, indicating real health shifts.

Keywords:
American Community SurveyDisability measurementHealth statusLongitudinal

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Area of Science:

  • Public Health
  • Sociology
  • Health Services Research

Background:

  • The six-question disability set from the American Community Survey is the national standard for measuring disability.
  • This set is intended to identify individuals with long-term disabilities.
  • Inconsistent responses over time suggest it may also capture transitory disability.

Purpose of the Study:

  • To investigate if inconsistent disability responses are associated with changes in health status.
  • To explore the correlation between changes in health-related quality of life and changes in disability status.

Main Methods:

  • Recruited 525 participants for a longitudinal survey over 18 months.
  • Administered the six disability questions, health-related quality of life measures, and mobility equipment use surveys.
  • Computed within-person changes in health-related quality of life to assess associations with disability status changes.

Main Results:

  • Half or fewer respondents consistently reported disability status.
  • Individuals who changed disability responses also reported changes in health-related quality of life.
  • Transitioning into walking disability decreased quality of life (avg. -0.18 s.d.), while transitioning out increased it (avg. 0.27 s.d.).

Conclusions:

  • The six-question set identifies both enduring and transitory disability.
  • Changes in health status correlate with changes in disability status.
  • Observed disability transitions reflect genuine changes in perceived health and impairment.