High test-retest reliability was found for the Function component , while results for the Disability component were more variable .
Conclusions There is extensive evidence to support the construct validity and sensitivity to change of the LLFDI among various clinical population s of community-dwelling older adults .
Background The choice of measure for use as a primary outcome in geriatric research is contingent upon the construct of interest and evidence for its psychometric properties .
The Late-Life Function and Disability Instrument ( LLFDI ) has been widely used to assess functional limitations and disability in studies with older adults .
The primary aim of this systematic review was to evaluate the current available evidence for the psychometric properties of the LLFDI .
Community environmental factors are associated with disability in older adults with functional limitations: the MOST study.
BACKGROUND There is limited evidence supporting the hypothesized environment-disability link . The objectives of this study were to ( a ) identify the prevalence of community mobility barriers and transportation facilitators and ( b ) examine whether barriers and facilitators were associated with disability among older adults with functional limitations . METHODS Four hundred and thirty-five participants aged 65 + years old with functional limitations were recruited from the Multicenter Osteoarthritis Study , a prospect i ve study of community-dwelling adults with or at risk of developing symptomatic knee osteoarthritis . Presence of community barriers and facilitators was ascertained by the Home and Community Environment survey . Two domains of disability , ( a ) daily activity limitation ( DAL ) and ( b ) daily activity frequency ( DAF ) , were assessed with the Late-Life Disability Instrument . Covariates included age , gender , education , race , comorbidity , body mass index , knee pain , and functional limitation . Multivariable logistic regression was used to examine adjusted associations of community factors with presence of DAL and DAF . RESULTS Approximately one third of the participants lived in a community with high mobility barriers and low transportation facilitators .  High mobility barriers was associated with greater odds of DAL ( odds ratio [ OR ] = 2.0 , 95 % confidence interval [ CI ] 1.2 - 3.1 ) after adjusting for covariates , and high transportation facilitators was associated with lower odds of DAL ( OR = 0.5 , 95 % CI 0.3 - 0.8 ) but not with DAF in adjusted models . CONCLUSION People with functional limitations who live in communities that were more restrictive felt more limited in doing daily activities but did not perform these daily activities any less frequently
High test-retest reliability was found for the Function component , while results for the Disability component were more variable .
Conclusions There is extensive evidence to support the construct validity and sensitivity to change of the LLFDI among various clinical population s of community-dwelling older adults .
Background The choice of measure for use as a primary outcome in geriatric research is contingent upon the construct of interest and evidence for its psychometric properties .
The Late-Life Function and Disability Instrument ( LLFDI ) has been widely used to assess functional limitations and disability in studies with older adults .
The primary aim of this systematic review was to evaluate the current available evidence for the psychometric properties of the LLFDI .