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 .
Determinants of self-rated health in old age: A population-based, cross-sectional study using the International Classification of Functioning
Background Self-rated health ( SRH ) is a widely used indicator of general health and multiple studies have supported the predictive validity of SRH in older population s concerning future health , functional decline , disability , and mortality . The aim of this study was to use the theoretical framework of the International Classification of Functioning , Disability and Health ( ICF ) to create a better underst and ing of factors associated with SRH among community-dwelling older people in urban and rural areas . Methods The study design was population -based and cross-sectional . Participants were 185 Icel and ers , r and omly selected from a national registry , community-dwelling , 65 - 88 years old , 63 % urban residents , and 52 % men . Participants were asked : " In general , would you say your health is excellent , very good , good , fair , or poor ? " Associations with SRH were analyzed with ordinal logistic regression . Explanatory variables represented aspects of body functions , activities , participation , environmental factors and personal factors components of the ICF . Results Univariate analysis revealed that SRH was significantly associated with all analyzed ICF components through 16 out of 18 explanatory variables . Multivariate analysis , however , demonstrated that SRH had an independent association with five variables representing ICF body functions , activities , and personal factors components : The likelihood of a better SRH increased with advanced lower extremity capacity ( adjusted odds ratio [ adjOR ] = 1.05 , p < 0.001 ) , upper extremity capacity ( adjOR = 1.13 , p = 0.040 ) , household physical activity ( adjOR = 1.01 , p = 0.016 ) , and older age ( adjOR = 1.09 , p = 0.006 ) ; but decreased with more depressive symptoms ( adjOR = 0.79 , p < 0.001 ) . Conclusions The results highlight a collection of ICF body functions , activities and personal factors associated with higher SRH among community-dwelling older people . Some of these , such as physical capacity , depressive symptoms , and habitual physical activity are of particular interest due to their potential for change through public health interventions . The use of ICF conceptual framework and widely accepted st and ardized assessment s should make these results comparable and relevant in an international context
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 .