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Translation, cross-cultural adaptation and reliability of the German version of the dizziness handicap inventory


Kurre, A; van Gool, C J A W; Bastiaenen, C H G; Gloor-Juzi, T; Straumann, D; de Bruin, E D (2009). Translation, cross-cultural adaptation and reliability of the German version of the dizziness handicap inventory. Otology and Neurotology, 30(3):359-367.

Abstract

To translate the Dizziness Handicap Inventory into German (DHI-G) and investigate reliability, assess the association between selected items of the University of California Los Angeles Dizziness Questionnaire and the DHI-G, and compare the scores of patients and healthy participants. STUDY DESIGN:: Cross-sectional design. SETTING:: Tertiary center for vertigo, dizziness, or balance disorders. PATIENTS:: One hundred forty-one patients with vertigo, dizziness, and unsteadiness associated with a vestibular disorder, with a mean age (standard deviation) of 51.5 (13.2) years, and 52 healthy individuals participated. INTERVENTIONS:: Fourteen patients participated in the cognitive debriefing; 127 patients completed the questionnaires once or twice within 1 week. MAIN OUTCOME MEASURES:: The DHI-G assesses disability caused by dizziness and unsteadiness; the items of the University of California Los Angeles Dizziness Questionnaire assess dizziness and impact on everyday activities. Internal consistency was estimated using Cronbach alpha, reproducibility by calculating Bland-Altman limits of agreement and intraclass correlation coefficients. Associations were estimated by Spearman correlation coefficients. RESULTS:: Patients filled out the DHI-G without problem and found that their self-perceived disabilities were mostly included. Cronbach alpha values for the DHI-G and the functional, physical, and emotional subscales were 0.90, 0.80, 0.71, and 0.82, respectively. The limits of agreement were +/-12.4 points for the total scale (maximum, 100 points). Intraclass correlation coefficients ranged from 0.90 to 0.95. The DHI-G correlated moderately with the question assessing functional disability (0.56) and fairly with the questions quantifying dizziness (0.43, 0.35). The DHI-G discriminated significantly between healthy participants and patients. CONCLUSION:: The DHI-G demonstrated good reliability and is recommended as a measure of disability in patients with dizziness and unsteadiness.

To translate the Dizziness Handicap Inventory into German (DHI-G) and investigate reliability, assess the association between selected items of the University of California Los Angeles Dizziness Questionnaire and the DHI-G, and compare the scores of patients and healthy participants. STUDY DESIGN:: Cross-sectional design. SETTING:: Tertiary center for vertigo, dizziness, or balance disorders. PATIENTS:: One hundred forty-one patients with vertigo, dizziness, and unsteadiness associated with a vestibular disorder, with a mean age (standard deviation) of 51.5 (13.2) years, and 52 healthy individuals participated. INTERVENTIONS:: Fourteen patients participated in the cognitive debriefing; 127 patients completed the questionnaires once or twice within 1 week. MAIN OUTCOME MEASURES:: The DHI-G assesses disability caused by dizziness and unsteadiness; the items of the University of California Los Angeles Dizziness Questionnaire assess dizziness and impact on everyday activities. Internal consistency was estimated using Cronbach alpha, reproducibility by calculating Bland-Altman limits of agreement and intraclass correlation coefficients. Associations were estimated by Spearman correlation coefficients. RESULTS:: Patients filled out the DHI-G without problem and found that their self-perceived disabilities were mostly included. Cronbach alpha values for the DHI-G and the functional, physical, and emotional subscales were 0.90, 0.80, 0.71, and 0.82, respectively. The limits of agreement were +/-12.4 points for the total scale (maximum, 100 points). Intraclass correlation coefficients ranged from 0.90 to 0.95. The DHI-G correlated moderately with the question assessing functional disability (0.56) and fairly with the questions quantifying dizziness (0.43, 0.35). The DHI-G discriminated significantly between healthy participants and patients. CONCLUSION:: The DHI-G demonstrated good reliability and is recommended as a measure of disability in patients with dizziness and unsteadiness.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Neuroscience Center Zurich
04 Faculty of Medicine > Center for Integrative Human Physiology
04 Faculty of Medicine > University Hospital Zurich > Rheumatology Clinic and Institute of Physical Medicine
04 Faculty of Medicine > University Hospital Zurich > Clinic for Neurology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Language:English
Date:April 2009
Deposited On:12 Mar 2009 07:52
Last Modified:05 Apr 2016 13:04
Publisher:Lippincott Wiliams & Wilkins
ISSN:1531-7129
Publisher DOI:10.1097/MAO.0b013e3181977e09
PubMed ID:19225437
Permanent URL: http://doi.org/10.5167/uzh-15828

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