Key result
Swedish Orthostatic Hypotension Questionnaire shows acceptable scaling and reliability in patients with parkinsonism.
Why the study?
The Orthostatic Hypotension Questionnaire is a proposed patient-reported tool, but it required translation into Swedish and assessment of its psychometric properties.
Is the Swedish translation of the Orthostatic Hypotension Questionnaire (OHQ) a valid and reliable tool for assessing orthostatic hypotension in patients with parkinsonism?
Cross-Sectional (n=35)
Is the Swedish translation of the Orthostatic Hypotension Questionnaire (OHQ) a valid and reliable tool for assessing orthostatic hypotension in patients with parkinsonism?
The Swedish translation of the OHQ is a valid and reliable patient-reported tool for assessing orthostatic hypotension in parkinsonian disorders.
Answers are grounded in this paper and cite their sources.
May support OH symptom assessment in Swedish parkinsonism patients; leaves open need for broader validation studies.
BACKGROUND: Orthostatic hypotension (OH) is common among older people and in particular in conditions like Parkinson's disease (PD). The OH Questionnaire (OHQ) has been proposed as a useful patient-reported assessment tool consisting of the OH Symptom Assessment (OHSA), OH Daily Activity Scale (OHDAS), and a composite score. AIMS OF THE STUDY: To translate the OHQ into Swedish and assess its psychometric properties. METHODS: Following forward-backward translation, the Swedish OHQ was field-tested (n = 6) for relevance, comprehensibility, and respondent burden. It was then tested regarding scaling assumptions, targeting, reliability, and construct validity in persons with PD (n = 27) and multiple system atrophy (n = 2). RESULTS: The Swedish OHQ was considered relevant and easy to use, with a mean completion time of 5.3 min. Scaling assumptions were acceptable for OHSA and OHDAS (corrected item-total correlations, .30-.67) but not for the total score (.12-.69). Floor/ceiling effects were ≤3.4% and reliability was >.64. Construct validity was supported by expected correlations with the SCOPA-AUT, RAND-36, and blood pressure measurements. CONCLUSIONS: The Swedish OHQ was well received, and psychometric results suggest that the OHQ (particularly the OHDAS) is a useful tool for OH assessment in parkinsonian disorders. Further testing in larger samples is needed.
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Olsson et al. (2020) conducted a cross-sectional in Parkinsonism (n=35). Swedish Orthostatic Hypotension Questionnaire (OHQ) was evaluated on Psychometric properties including scaling assumptions, targeting, reliability, and construct validity. The Swedish Orthostatic Hypotension Questionnaire demonstrated acceptable scaling assumptions for subscales (item-total correlations .30-.67) and reliability >.64 in patients with parkinsonism.
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