scholarly journals Reliability and Validity of the Korean Late-Life Function and Disability Instrument

Healthcare ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1200
Author(s):  
Da Sol Park ◽  
Hae Yean Park
Keyword(s):  
Older Adults ◽  
Reliability And Validity ◽  
Late Life ◽  
Factor Loading ◽  
Community Dwelling ◽  
Cultural Validity ◽  
High Internal Consistency ◽  
Community Dwelling Older Adults ◽  
Very High ◽  
Life Function

The purpose of this study was to develop the Korean version of the Late-Life Function and Disability Instrument (K-LLFDI) and verify its reliability and validity. Fifty community-dwelling older adults aged 65 years and above with independent mobility were surveyed. The reliability and validity of the instrument were verified. The overall cultural validity of 48 items was evaluated as very high (0.95), and only one item that was not appropriate was revised. The reliability of the remaining six domains was either high or very high. Internal consistency was high (α = 0.859) in the Disability component of the instrument and very high (α = 0.914) in the Function component. The factor loading for 42 out of 48 items was above 0.04. Overall, each component was well reflected by the sub-items. The K-LLFDI is expected to be instrumental in solving the rapidly growing problems of community-dwelling older adults.

Extending the Range of Functional Assessment in Older Adults: Development of the Late-Life Function and Disability Instrument

2002 ◽  
Vol 10 (4) ◽  
pp. 453-465 ◽  
Author(s):  
Stephen M. Haley ◽  
Larry H. Ludlow ◽  
Jill T. Kooyoomjian
Keyword(s):  
Older Adults ◽  
Physical Functioning ◽  
Late Life ◽  
Theory Model ◽  
Community Dwelling ◽  
Activity Assessment ◽  
Sf 36 ◽  
Community Dwelling Older Adults ◽  
Content Range ◽  
Life Function

As a preliminary step in developing the physical-functioning measure of the Late-Life Function and Disability Instrument (LLFDI), the authors compared its items with the physical-functioning items (PF-10) on the SF-36 Health Survey. They compared the item coverage, hierarchy, and scale-separation properties of the PF-10 items with those of the physical-functioning items of the LLFDI. Both questionnaires were administered to 50 community-dwelling older adults. A partial-credit, 1-parameter, item-response-theory model was used to scale the items. The LLFDI improved the range of ability of daily activities that was encompassed by the PF-10 items by 46%. By sequentially deleting new items with poor fit to the overall scale and items with redundant content, the authors developed a scale more capable of accurately assessing low-functioning activities. The LLFDI function component incorporates a broader content range and better person and item separation than the PF-10 items. It appears to have potential as a comprehensive functional-activity assessment for community-dwelling older adults.

scholarly journals Meaningful Change Estimates for the Late-Life Function and Disability Instrument in Older Adults

2018 ◽  
Vol 74 (4) ◽  
pp. 556-559 ◽  
Author(s):  
Marla K Beauchamp ◽  
Rachel E Ward ◽  
Alan M Jette ◽  
Jonathan F Bean
Keyword(s):  
Older Adults ◽  
Lower Extremity ◽  
Community Dwelling ◽  
Minimal Detectable Change ◽  
Global Rating ◽  
Mobility Limitations ◽  
Meaningful Change ◽  
Patient Reported ◽  
Community Dwelling Older Adults ◽  
Life Function

Abstract Background The Late-Life Function and Disability Instrument (LLFDI) is a well-validated and frequently used patient-reported outcome for older adults. The aim of this study was to estimate the minimal clinically important difference (MCID) of the LLFDI-Function Component (LLFDI-FC) and its subscales among community-dwelling older adults with mobility limitations. Methods We performed a secondary analysis of the Boston Rehabilitative Impairment Study of the Elderly, a longitudinal cohort study of older adults with mobility limitations residing in the community. The MCID for each LLFDI-FC scale over 1 year of follow-up was estimated using both anchor- and distribution-based methods, including mean change scores on a patient-reported global rating of change in function scale, the standard error of measurement (SEM), and the minimal detectable change with 90% confidence (MDC90). Results Data from 320 older adults were used in the analysis (mean age 76 years, 69% female, mean of four chronic conditions). Meaningful change estimates for “small change” based on the global rating of change and SEM were 2, 3, 4, and 4 points for the LLFDI-FC overall function scale and basic lower-extremity, advanced lower-extremity, and upper-extremity subscales, respectively. Estimates for “substantial change” based on the global rating of change and minimal detectable change with 90% confidence were 5, 6, 9, and 10 points for the overall function scale and basic lower-extremity, advanced lower-extremity, and upper-extremity subscales, respectively. Conclusion This study provides the first MCID estimates for the LLFDI-FC, a widely used patient-reported measure of function. These values can be used to interpret the outcomes of longitudinal investigations of functional status in similar populations of community-dwelling older adults.

Development and Psychometrics Test of Home Environment Assessment Checklist for Community-Dwelling Older Adults with Dementia

2020 ◽  
Vol 77 (4) ◽  
pp. 1389-1396
Author(s):  
Yi Wang ◽  
Liyu Li ◽  
Shuangyue Tian ◽  
Jie Wu ◽  
Zhiwen Wang
Keyword(s):  
Older Adults ◽  
Home Environment ◽  
Visual Cues ◽  
Reliability And Validity ◽  
Living Environment ◽  
Community Dwelling ◽  
Rater Reliability ◽  
Environment Assessment ◽  
People With Dementia ◽  
Community Dwelling Older Adults

Background: Home environment is a core domain in the care of community-dwelling older adults with dementia, but there is no suitable instrument to measure it in China. Objective: To develop and psychometrically test the home environment assessment checklist for community-dwelling older adults with dementia. Methods: A three-step process was performed to develop and test this instrument: 1) based on the evidence-based theory, the checklist was summarized as the main points of evidence from living environment settings among older adults with dementia, 2) the draft tool was assigned to an iterative process of evaluation by a panel of examiners consisting of experts from treatment, nursing and caring, people with dementia and their caregivers, 3) inter-rater reliability and internal consistency were calculated with a sample of 348 caregivers of the older adults with dementia. Results: The HEAC consisted of 71 items in domains addressing safety, stability and familiarity, visual cues, and sensory stimulation. Psychometric evaluation showed that this tool demonstrated sound reliability and validity. Content validity was 0.969 which was established by a panel of experts (n = 10). Inter-rater reliability of two researchers was 0.978, and 0.848 for researchers and caregivers. Test-retest reliability was excellent (ICC = 0.757–0.877) in community-dwelling older adults with dementia 2 week apart. Conclusion: The HEAC is a new tool to help collect the reliable information on the barriers and facilitators of home environment for community-dwelling older adults with dementia and to precipitate the home modification process to improve the quality of care for people with dementia and their caregivers in daily life.

scholarly journals Reliability and Validity of the Activity Diversity Questionnaire for Older Adults in Japan

2020 ◽  
Vol 17 (7) ◽  
pp. 2384
Author(s):  
Junta Takahashi ◽  
Hisashi Kawai ◽  
Hiroyuki Suzuki ◽  
Yoshinori Fujiwara ◽  
Yutaka Watanabe ◽  
...  
Keyword(s):  
Older Adults ◽  
Science And Technology ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Correlation Coefficients ◽  
Community Dwelling ◽  
Assessment Tools ◽  
Tokyo Metropolitan ◽  
Community Dwelling Older Adults ◽  
Tokyo Metropolitan Institute

Recent research has suggested that the breadth and evenness of activity and activity diversity contribute to health outcomes among older adults. However, few established assessment tools for activity diversity have been developed. This study developed an Activity Diversity Questionnaire (ADQ) for older adults through expert consultation and a preliminary survey among 18 community-dwelling older adults. The diversity score was calculated according to Shannon’s entropy. In study 1, the intraclass correlation coefficients (ICC) of the diversity scores were determined for community-dwelling older adults (n = 30). In study 2, concurrent validity was tested with participants receiving comprehensive health checkups at the Itabashi ward in Japan in 2018 (n = 766). The correlation coefficients of the diversity scores were then calculated in reference to the Tokyo Metropolitan Institute of Gerontology Index of Competence and Japan Science and Technology Agency Index of Competence. The final version of the ADQ consisted of 20 total items with excellent test-retest reliability (ICC = 0.84) and moderate correlations with both the Tokyo Metropolitan Institute of Gerontology Index of Competence and Japan Science and Technology Agency Index of Competence (r = 0.48 and 0.60, respectively). The ADQ was developed through scientific procedures and revealed sufficient reliability and validity. As such, it is a scientifically validated tool for assessing activity diversity among older adults.

Reliability and Validity of Responses to Submaximal All-Extremity Semirecumbent Exercise in Older Adults

2007 ◽  
Vol 15 (2) ◽  
pp. 184-194 ◽  
Author(s):  
Marissa E. Mendelsohn ◽  
Denise M. Connelly ◽  
Tom J. Overend ◽  
Robert J. Petrella
Keyword(s):  
Older Adults ◽  
Reliability And Validity ◽  
Submaximal Exercise ◽  
Community Dwelling ◽  
Clinical Settings ◽  
Retest Reliability ◽  
Exercise Mode ◽  
Three Stages ◽  
Test Retest Reliability ◽  
Community Dwelling Older Adults

Although popular in clinical settings, little is known about the utility of all-extremity semirecumbent exercise machines for research. Twenty-one community-dwelling older adults performed two exercise trials (three 4-min stages at increasing workloads) to evaluate the reliability and validity of exercise responses to submaximal all-extremity semirecumbent exercise (BioStep). Exercise responses were measured directly (Cosmed K4b2) and indirectly through software on the BioStep. Test–retest reliability (ICC2,1) was moderate to high across all three stages for directly measured METs (.92, .87, and .88) and HR (.91, .83, and .86). Concurrent criterion validity between the K4b2and BioStep MET values was moderate to very good across the three stages on both Day 1 (r= .86, .71, and .83) and Day 2 (r= .73, .87, and .72). All-extremity semirecumbent submaximal exercise elicited reliable and valid responses in our sample of older adults and thus can be considered a viable exercise mode.

The modified sphygmomanometer test for assessment of muscle strength of community-dwelling older adults in clinical practice: reliability and validity

2020 ◽  
pp. 1-8
Author(s):  
Sherindan Ayessa Ferreira de Brito ◽  
Marina de Melo Santana ◽  
Poliana do Amaral Benfica ◽  
Larissa Tavares Aguiar ◽  
Gisele de Cássia Gomes ◽  
...  
Keyword(s):  
Older Adults ◽  
Clinical Practice ◽  
Muscle Strength ◽  
Reliability And Validity ◽  
Community Dwelling ◽  
Community Dwelling Older Adults
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