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Validity and Responsiveness of At-Home Touch Screen Assessments in Advanced Parkinson's Disease
School of Technology and Business Studies, Computer Engineering, Dalarna University, Falun, Sweden.ORCID iD: 0000-0002-2372-4226
Department of Neuroscience, Neurology, Uppsala University, Uppsala, Sweden.
Department of Clinical Neuroscience, Neurology, Karolinska Institutet, Stockholm, Sweden.
Department of Neurology, Karolinska University Hospital, Stockholm, Sweden.
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2015 (English)In: IEEE journal of biomedical and health informatics, ISSN 2168-2194, E-ISSN 2168-2208, Vol. 19, no 6, p. 1829-1834Article in journal (Refereed) Published
Abstract [en]

The aim of this study was to investigate if a telemetry test battery can be used to measure effects of Parkinson's disease (PD) treatment intervention and disease progression in patients with fluctuations. Sixty-five patients diagnosed with advanced PD were recruited in an open longitudinal 36-month study; 35 treated with levodopa-carbidopa intestinal gel (LCIG) and 30 were candidates for switching from oral PD treatment to LCIG. They utilized a test battery, consisting of self-assessments of symptoms and fine motor tests (tapping and spiral drawings), four times per day in their homes during week-long test periods. The repeated measurements were summarized into an overall test score (OTS) to represent the global condition of the patient during a test period. Clinical assessments included ratings on unified PD rating scale (UPDRS) and 39-item PD questionnaire (PDQ-39) scales. In LCIG-naïve patients, the mean OTS compared to baseline was significantly improved from the first test period on LCIG treatment until month 24. In LCIG-nonnaïve patients, there were no significant changes in the mean OTS until month 36. The OTS correlated adequately with total UPDRS (rho = 0.59) and total PDQ-39 (0.59). Responsiveness measured as effect size was 0.696 and 0.536 for OTS and UPDRS, respectively. The trends of the test scores were similar to the trends of clinical rating scores but the dropout rate was high. Correlations between OTS and clinical rating scales were adequate indicating that the test battery contains important elements of the information of well-established scales. The responsiveness and reproducibility were better for OTS than for total UPDRS.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2015. Vol. 19, no 6, p. 1829-1834
Keywords [en]
Home assessment; levodopa infusion; Parkinson's; disease (PD); remote monitoring; telemedicine
National Category
Computer and Information Sciences
Research subject
Informatics
Identifiers
URN: urn:nbn:se:oru:diva-61016DOI: 10.1109/JBHI.2015.2468088ISI: 000364857000007PubMedID: 26285227Scopus ID: 2-s2.0-84959209820OAI: oai:DiVA.org:oru-61016DiVA, id: diva2:1141378
Note

Funding Agencies:

Swedish Knowledge Foundation, Abbot Product Operations AG, Allschwil, Switzerland  

Nordforce Technology AB, Stockholm, Sweden 

Available from: 2017-09-14 Created: 2017-09-14 Last updated: 2018-01-13Bibliographically approved

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Memedi, Mevludin

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