Date Presented 04/06/19
Prospective memory (PM) error negatively impacts daily function in people with Parkinson’s disease (PD). Sixty-one people with PD reported the frequency and severity of daily PM errors. Instrumental activities of daily living (IADL) PM errors were more frequent, but not more severe than basic activities of daily living (ADL) PM errors. Greater PM error correlated with decreased quality of life (QOL). Intervention should target PM to positively impact function and QOL of people with PD.
Primary Author and Speaker: Blair Holck
Additional Authors and Speakers: Erin Foster
PURPOSE: To investigate self-reported prospective memory (PM) errors and the relationship to health-related quality of life (HR-QOL) in people with Parkinson’s disease (PD). Individuals with PD experience decreased PM performance. These PM deficits can negatively affect daily activities including instrumental activities of daily living (IADLs). Self-report measures provide insight into how frequently and severely PM errors manifest in the everyday lives of individuals with PD.
DESIGN: The study was an observational, cross sectional study. Sixty-one non-demented participants with mild to moderate PD (Hoehn & Yahr stages I to III) who were ≥50 years old were recruited from the Movement Disorders Clinic.
METHODS: The Comprehensive Assessment of Prospective Memory (CAPM) measured perceived daily life PM error frequency and the severity. Items were classified into two subscales: IADLs and Basic Activities of Daily Living (BADLs). Additionally, participants completed the Parkinson’s Disease Questionnaire (PDQ-39) to measure HR-QOL. A general linear model with planned pairwise comparisons was used to identify differences between the CAPM subscales. Bi-variate correlations analyzed relationships between the CAPM and PDQ-39 subscales.
RESULTS: IADL PM errors were more frequent than BADL PM errors (p < 0.001). However, IADL PM errors were not more severe than BADL errors. Greater IADL PM error frequency was associated with greater BADL PM error frequency (r = 0.734, p < 0.001), and greater IADL PM error severity was associated with greater BADL PM error severity (r = 0.897, p < 0.001). However, there were no correlations between PM error frequency and severity. Finally, PM error frequency was correlated with HR-QOL cognitive impairment, communication, and summary subscales (r ≥ 0.307, p < 0.01).
SIGNIFICANCE AND IMPACT: Individuals with PD report more frequent IADL PM errors, such as forgetting to take medications or purchase items at the grocery store, than BADL PM errors, such as forgetting to complete grooming activities. However, they do not necessarily perceive IADL PM errors as more severe than BADL PM errors. Thus, in addition to the frequency of occurrence, importance of activities and severity of consequences should be considered when addressing PM error. Targeting PM improvement in daily occupations may positively impact HR-QOL for people with PD.
References
Foster, E. R., McDaniel, M. A., Repovš, G., & Hershey, T. (2009). Prospective memory in Parkinson disease across laboratory and self-reported everyday performance. Neuropsychology, 23(3), 347. DOI: 10.1037/a0014692
Pirogovsky, E., Woods, S. P., Filoteo, J. V., & Gilbert, P. E. (2012). Prospective memory deficits are associated with poorer everyday functioning in Parkinson's disease. Journal of the International Neuropsychological Society, 18(6), 986-995. DOI: 10.1017/S1355617712000781
Costa, A., Peppe, A., Caltagirone, C., & Carlesimo, G. A. (2008). Prospective memory impairment in individuals with Parkinson's disease. Neuropsychology, 22(3), 283. DOI: 10.1037/0894-4105.22.3.283.
