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Disaggregating pain and its effect on physical functional limitations

M J Lichtenstein1, R Dhanda, J E Cornell

  • 1Division of Geriatrics and Gerontology, University of Texas Health Science Center, San Antonio. lichtenstei@uthscsa.edu

The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
|October 1, 1998
PubMed
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Pain location significantly impacts physical function in older adults. The McGill Pain Map (MPM) effectively identifies pain regions, revealing location as a key factor in functional limitations.

Area of Science:

  • Gerontology
  • Pain Research
  • Biomedical Science

Background:

  • Pain is a prevalent impairment affecting older adults' functional abilities.
  • Understanding pain's characteristics is crucial for addressing limitations in this demographic.

Purpose of the Study:

  • To map pain distribution using the McGill Pain Map (MPM) in older adults.
  • To group pain areas into regions and assess pain dimensions (intensity, frequency, location).
  • To determine the contribution of pain dimensions to physical functional limitations.

Main Methods:

  • Study included 833 adults aged 65-79, with 373 reporting pain.
  • Utilized the McGill Pain Map (MPM) for pain location and McGill Pain Questionnaire for intensity/frequency.
  • Employed confirmatory factor analysis to group pain areas and Nagi scale for functional limitations.

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Main Results:

  • Pain was reported across all MPM areas, grouped into 7 regions.
  • Pain dimensions (intensity, frequency, location) showed weak inter-associations.
  • Pain location was the strongest predictor of physical functional limitations, accounting for 9-14% variance.

Conclusions:

  • Pain location is a critical determinant of self-reported physical functional limitations in older adults.
  • The MPM methodology is valuable for population and clinical studies on pain.
  • Future research should link specific diseases to pain pathways influencing functional decline and disability.