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J Aging Health. 2014 Apr;26(3):495-515. doi: 10.1177/0898264314523448. Epub 2014 Mar 5.

Evaluation of the Late-Life Disability Instrument (LLDI) in low-income older populations.

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1
Queen's University, Kingston, Ontario, Canada.

Abstract

OBJECTIVE:

To assess the construct and convergent validity of the 16 items of the Late-Life Disability Instrument (LLDI) in Latin American seniors.

METHOD:

Exploratory and confirmatory factor analyses were performed to assess the factor structure of frequency and limitation sub-scales of the LLDI. ANOVA and t test were used to determine the convergent and construct validity of the LLDI by exploring associations with physical performance tests, mobility limitations, depression, cognition, self-reported health, as well as with sex, education, and income.

RESULTS:

Factor analysis resulted in one-factor solution and acceptable model fit. Participants with better physical function, less mobility limitations, better self-reported health, and intact cognition reported more frequent activities and fewer limitations, indicating good convergent and construct validity of our measure.

CONCLUSION:

LLDI is a good instrument to assess disability in low-income populations. Further research is needed to include culturally acceptable activities for the frequency sub-scale.

KEYWORDS:

Latin America; confirmatory factor analysis; exploratory factor analysis; late-life disability; older adults

PMID:
24599908
DOI:
10.1177/0898264314523448
[Indexed for MEDLINE]
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