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Development and clinimetric assessment of a nurse-administered screening tool for movement disorders in psychosis

Balint, Bettina and Killaspy, Helen and Marston, Louise and Barnes, Thomas and Latorre, Anna and Joyce, Eileen and Clarke, Caroline and De Micco, Rosa and Edwards, Mark and Erro, Roberto and Foltynie, Thomas and Hunter, Rachel and Nolan, Fiona M and Schrag, Anette and Freemantle, Nick and Foreshaw, Yvonne and Green, Nicholas and Bhatia, Kailash and Martino, Davide (2018) 'Development and clinimetric assessment of a nurse-administered screening tool for movement disorders in psychosis.' BJPsych Open, 4 (5). pp. 404-410. ISSN 2056-4724

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Background: Movement disorders (MD) associated with exposure to antipsychotic drugs (AP). MD are common and stigmatising, but underdiagnosed. Methods: We developed a screening procedure for AP-MD for administration by mental health (MH) nurses. Item selection and content validity assessment were conducted by a panel of neurologists, psychiatrists and a MH nurse, who operationalised a 31-item screening procedure (ScanMove instrument). Inter-rater reliability was measured on ratings from ten MH nurses evaluating video-recordings of the procedure on 30 patients with psychosis. Criterion and concurrent validity were tested comparing the ScanMove instrument-based rating of thirteen MH nurses of 635 community patients from MH services to diagnostic judgement of a MD neurologist based on the ScanMove instrument and a reference procedure comprising a selection of commonly used rating scales. Results: Inter-reliability analysis showed no systematic difference between raters in their prediction of any AP-MD category. On criterion validity testing, the ScanMove instrument showed good sensitivity for parkinsonism (94%) and hyperkinesia (89%), but not for akathisia (38%), whereas specificity was low for parkinsonism and hyperkinesia, and moderate for akathisia. Mixed effect regression models showed low concurrent validity of quantitative scores obtained from the ScanMove instrument. Conclusions: The ScanMove instrument demonstrated good feasibility and inter-rater reliability, and acceptable sensitivity as MH nurse-administered screening tool for parkinsonism and hyperkinesia.

Item Type: Article
Uncontrolled Keywords: Drug interactions and side effects; antipsychotics; clinical neurology
Subjects: R Medicine > RA Public aspects of medicine > RA790 Mental Health
Divisions: Faculty of Science and Health
Faculty of Science and Health > Health and Social Care, School of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 07 Sep 2018 11:33
Last Modified: 18 Aug 2022 13:20

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