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Psychometric Properties of the Apathy Scale in Advanced Parkinson’s Disease
Joint Authors
Martinez-Martin, Pablo
Vallderiola, Francesc
Wetmore, John B.
Arbelo, José Matías
Catalán, María José
Rodriguez-Blazquez, Carmen
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-03-28
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Objectives.
To assess the psychometric attributes of the Apathy Scale- (AS-) Spanish version in patients with advanced Parkinson’s disease (APD).
Materials and Methods.
Over 6 months, 61 patients participated in a clinical study of levodopa-carbidopa intestinal gel (LCIG) and were evaluated using the AS and other clinical tools.
Various psychometric attributes of the AS were assessed.
Results.
Patients (60.7% men) were aged 68.02 ± 7.43 years, with 12.57 ± 5.97 years from PD diagnosis.
Median HY of patients in “on state” was 2 (range, 1–4), and mean levodopa equivalent daily dose was 1455.98 ± 456.00 mg.
Overall, the parameters of feasibility/acceptability were satisfactory, except for a moderate-to-high floor effect in AS items but not in its total score (both 3.3%).
Cronbach’s alpha was 0.78, while item homogeneity coefficient was 0.21.
Almost all items (11/14) reached acceptable item-total corrected correlations (rS = 0.16–0.50).
AS total score was moderately correlated with Beck Depression Inventory (0.34) and with Non-Motor Symptoms Scale domains 2 (sleep/fatigue, 0.35), 3 (mood/apathy, 0.56), and 5 (attention/memory, 0.41).
There were no significant differences between AS total scores by established groups of sex, time from diagnosis, HY, and Clinical Global Impression-Severity Scale.
Following LCIG treatment, there was no significant change in the AS total score.
The relative change was 5.56%, the standard error of the difference was 4.17, and Cohen’s d effect was 0.10.
Conclusions.
The AS showed satisfactory feasibility, acceptability, scaling assumptions, internal consistency, and convergent validity.
Responsiveness parameters were poor, probably due to the characteristics of the clinical study from which these data came.
This trial is registered with NCT02289729.
American Psychological Association (APA)
Wetmore, John B.& Arbelo, José Matías& Catalán, María José& Vallderiola, Francesc& Rodriguez-Blazquez, Carmen& Martinez-Martin, Pablo. 2019. Psychometric Properties of the Apathy Scale in Advanced Parkinson’s Disease. Parkinson’s Disease،Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1206859
Modern Language Association (MLA)
Wetmore, John B.…[et al.]. Psychometric Properties of the Apathy Scale in Advanced Parkinson’s Disease. Parkinson’s Disease No. 2019 (2019), pp.1-8.
https://search.emarefa.net/detail/BIM-1206859
American Medical Association (AMA)
Wetmore, John B.& Arbelo, José Matías& Catalán, María José& Vallderiola, Francesc& Rodriguez-Blazquez, Carmen& Martinez-Martin, Pablo. Psychometric Properties of the Apathy Scale in Advanced Parkinson’s Disease. Parkinson’s Disease. 2019. Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1206859
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1206859