A psychometric evaluation of a Swedish version of the Quality of Life in Late-Stage Dementia (QUALID) scale.
Artikel i vetenskaplig tidskrift, 2007

BACKGROUND: The aim of the present study was to evaluate the validity, reliability and responsiveness of a Swedish translation of the Quality of Life in Late-Stage Dementia (QUALID) Scale. METHOD: A total of 169 elderly residents at 19 dementia special care units in eight long-term care facilities in the Gothenburg city region participated in the study. Assessments were made by 107 proxy informants. RESULTS: Results showed satisfactory levels of internal consistency reliability (Cronbach's alpha coefficients 0.74), acceptable inter-rater reliability between informants (0.69), and high test-retest reliability (0.86). As hypothesized, QUALID scores were also associated with those from other quality-of-life (QoL) indices (criterion validity), as well as with use of psychoactive drugs, and with tests of cognitive impairment (clinical validity). The responsiveness of the questionnaire was also acceptable. CONCLUSIONS: As important clinical decisions may derive from perceived QoL effects, it is vital that the QoL data be reliable, valid and sensitive to change. Our evaluations of the psychometric properties of the Swedish QUALID indicate that it satisfactorily meets the need for an instrument to assess QoL in late-stage dementia in Sweden, in a wide range of settings and applications.

Homes for the Aged

Health Status Indicators

Questionnaires

Sweden

Male

psychology

Reproducibility of Results

Mental Status Schedule

statistics & numerical data

Aged

Female

Cross-Cultural Comparison

Humans

80 and over

statistics & numerical data

Psychometrics

Nursing Homes

Language

Dementia

drug therapy

psychology

Activities of Daily Living

Aged

psychology

Quality of Life

Författare

Hanna Falk

Göteborgs universitet

Lars-Olof Persson

Göteborgs universitet

Helle Wijk

Göteborgs universitet

International Psychogeriatrics

1041-6102 (ISSN) 1741-203X (eISSN)

Vol. 19 6 1040-50

Ämneskategorier

Omvårdnad

DOI

10.1017/S1041610207005777

PubMed

17697438