Minimal important change and minimal detectable change in activities of daily living in community-living older people

Autor: Jacqueline J. Suijker, S.E. de Rooij, M. van Rijn, Bianca M. Buurman, G. ter Riet, E. P. Moll van Charante
Přispěvatelé: General practice, APH - Personalized Medicine, APH - Aging & Later Life, APH - Health Behaviors & Chronic Diseases, ACS - Amsterdam Cardiovascular Sciences, Other Research, Geriatrics, APH - Quality of Care, AMS - Amsterdam Movement Sciences, ACS - Diabetes & metabolism, Lifelong Learning, Education & Assessment Research Network (LEARN)
Rok vydání: 2016
Předmět:
Male
Gerontology
Activities of daily living
Medicine (miscellaneous)
RESPONSIVENESS
Cohort Studies
03 medical and health sciences
Elderly
0302 clinical medicine
Quality of life
QUALITY-OF-LIFE
Surveys and Questionnaires
Community living
Cluster Analysis
Humans
Medicine
030212 general & internal medicine
Aged
Netherlands
Randomized Controlled Trials as Topic
Aged
80 and over
OUTCOMES
Nutrition and Dietetics
MEANINGFUL CHANGE
business.industry
DISABILITY
030503 health policy & services
ADULTS
PERFORMANCE
DIFFERENCE
patient reported outcome
HEALTH-STATUS QUESTIONNAIRES
Standard error
Socioeconomic Factors
Sample size determination
minimal important change
POPULATIONS
Female
Patient-reported outcome
Independent Living
Geriatrics and Gerontology
activities of daily living
0305 other medical science
business
Older people
human activities
Cohort study
Zdroj: journal of nutrition, health & aging, 21(2), 165-172. Springer Paris
The Journal of Nutrition, Health & Aging, 21(2), 165-172. SPRINGER FRANCE
ISSN: 1760-4788
1279-7707
DOI: 10.1007/s12603-016-0797-8
Popis: To estimate the minimal important change (MIC) and the minimal detectable change (MDC) of the Katz-activities of daily living (ADL) index score and the Lawton instrumental activities of daily living (IADL) scale.Data from a cluster-randomized clinical trial and a cohort study.General practices in the Netherlands.3184 trial participants and 51 participants of the cohort study with a mean age of 80.1 (SD 6.4) years.At baseline and after 6 months, the Katz-ADL index score (0-6 points), the Lawton IADL scale (0-7 points), and self-perceived decline in (I)ADL were assessed using a self-reporting questionnaire. MIC was assessed using anchor-based methods: the (relative) mean change score; and using distributional methods: the effect size (ES), the standard error of measurement (SEM), and 0.5 SD. The MDC was estimated using SEM, based on a test-retest study (2-week interval) and on the anchor-based method.Anchor-based MICs of the Katz-ADL index score were 0.47 points, while distributional MICs ranged from 0.18 to 0.47 points. Similarly, anchor-based MICs of the Lawton IADL scale were between 0.31 and 0.54 points and distributional MICs ranged from 0.31 to 0.77 points. The MDC varies by sample size. For the MIC to exceed the MDC at least 482 patients are needed.The MIC of both the Katz-ADL index and the Lawton IADL scale lie around half a point. The certainty of this conclusion is reduced by the variation across calculational methods.
Databáze: OpenAIRE
Externí odkaz: