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Gepubliceerd in: Tijdschrift voor Gerontologie en Geriatrie 3/2011

01-06-2011 | Oorspronkelijke artikelen

Psychometrische eigenschappen van drie screeningsinstrumenten voor kwetsbaarheid bij thuiswonende ouderen

Auteurs: S. F. Metzelthin, R. Daniels, E. van Rossum, L. P. de Witte, W. J. A. van den Heuvel, G. I. J. M. Kempen

Gepubliceerd in: Tijdschrift voor Gerontologie en Geriatrie | Uitgave 3/2011

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Samenvatting

Achtergrond Kwetsbaarheid kan leiden tot negatieve gezondheidsuitkomsten zoals beperkingen. Om deze te voorkomen zijn valide screeningsinstrumenten nodig om kwetsbare ouderen op te sporen. Doel van deze studie was de evaluatie en vergelijking van drie instrumenten: de Groningen Frailty Indicator (GFI), de Tilburg Frailty Indicator (TFI) en de Sherbrooke Postal Questionnaire (SPQ). Voor constructvalidering was de Groningen Activiteiten Restrictie Schaal (GARS) toegevoegd. Methode Een vragenlijst werd naar 687 ouderen (≥70 jaar) gestuurd. Geëvalueerd werden (1) de prevalentie van kwetsbaarheid, (2) de betrouwbaarheid, (3) de cumulatieve schaalbaarheid volgens het schaalmodel van Mokken, en (4) de constructvaliditeit.
Resultaten De respons bedroeg 77%. Prevalentieschattingen varieerden van 40% tot 59%. De grootste overeenstemming in kwetsbaarheid bestond tussen de GFI en TFI (Cohens kappa=0,74). Cronbachs alpha voor de GFI, TFI en SPQ bedroeg respectievelijk 0,73, 0,79 en 0,26. Geen van de ‘frailty’-instrumenten vormt een monotoon homogene set van items met een hiërarchie in de moeilijkheidsgraad van de items (Loevingers H-coëfficiënten voor GFI, TFI en SPQ: 0,28, 0,30 en 0,09). Er werden significante correlaties gevonden tussen de scores voor kwetsbaarheid onderling en tussen deze scores en die op de GARS.
Conclusie Vooral de GFI en TFI lijken bruikbaar voor het opsporen van kwetsbare ouderen. Aanvullend onderzoek naar het voorspellend vermogen van deze ‘frailty’-instrumenten voor beperkingen in het dagelijks leven is echter nog nodig.
De oorspronkelijke versie van dit vertaalde en bewerkte artikel van deze auteurs is verschenen in BMC Public Health, 2010;10:176.
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Metagegevens
Titel
Psychometrische eigenschappen van drie screeningsinstrumenten voor kwetsbaarheid bij thuiswonende ouderen
Auteurs
S. F. Metzelthin
R. Daniels
E. van Rossum
L. P. de Witte
W. J. A. van den Heuvel
G. I. J. M. Kempen
Publicatiedatum
01-06-2011
Uitgeverij
Springer-Verlag
Gepubliceerd in
Tijdschrift voor Gerontologie en Geriatrie / Uitgave 3/2011
Print ISSN: 0167-9228
Elektronisch ISSN: 1875-6832
DOI
https://doi.org/10.1007/s12439-011-0022-5

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