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Validation of the brain injury associated visual impairment - impact questionnaire (BIVI-IQ).

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Title: Validation of the brain injury associated visual impairment - impact questionnaire (BIVI-IQ).
Authors: Hepworth, L. R. (AUTHOR), Kirkham, J.J. (AUTHOR), Perkins, E. (AUTHOR), Helliwell, B. (AUTHOR), Howard, C. (AUTHOR), Liptrot, M. (AUTHOR), Tawana, S. (AUTHOR), Wilson, E. (AUTHOR), Rowe, F. J. (AUTHOR)
Source: Quality of Life Research. Mar2024, Vol. 33 Issue 3, p777-791. 15p.
Subjects: Vision disorders, Brain injuries, Stroke units, Rasch models, Stroke patients
Abstract: Purpose: The Brain Injury associated Visual Impairment - Impact Questionnaire (BIVI-IQ) was developed to assess the impact of post-stroke visual impairment. The development of the questionnaire used robust methods involving stroke survivors and clinicians. The aim of this study was to assess the validity of the BIVI-IQ in a stroke population. Methods: Stroke survivors with visual impairment were recruited from stroke units, outpatient clinics and non-healthcare settings. Participants were asked to complete questionnaire sets on three separate occasions; the BIVI-IQ at each visit with additional questionnaires at baseline and visit 2. Vision assessment and anchor questions from participants and clinicians were collected. The analysis included assessment of missing data, acceptability, Rasch model analysis, test–retest reliability, construct validity (NEI VFQ-25, EQ-5D-5L) and responsiveness to change. Results: 316 stroke survivors completed at least one questionnaire of the 326 recruited. Mean age was 67 years and 64% were male. Adequate fit statistics to the Rasch model were reached (χ2 = 73.12, p = 0.02) with two items removed and thresholds of two adjusted, indicating validity and unidimensionality. Excellent test–retest reliability was demonstrated (ICC = 0.905) with a 3-month interval. Construct validity was demonstrated with a strong significant correlation to the NEI VFQ-25 (r = 0.837, p < 0.01). The BIVI-IQ also demonstrated responsiveness to change with significant differences identified between groups based on participant and clinician anchor questions (X2 = 23.29, p < 0.001; X2 = 24.56, p < 0.001). Conclusion: The BIVI-IQ has been shown to be valid and practical for 'everyday' use by clinicians and researchers to monitor vision-related quality of life in stroke survivors with visual impairment. [ABSTRACT FROM AUTHOR]
Copyright of Quality of Life Research is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Validation of the brain injury&#160;associated visual impairment&#160;- impact questionnaire&#160;(BIVI-IQ).
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Hepworth%2C+L%2E+R%2E%22&quot;&gt;Hepworth, L. R.&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Kirkham%2C+J%2EJ%2E%22&quot;&gt;Kirkham, J.J.&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Perkins%2C+E%2E%22&quot;&gt;Perkins, E.&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Helliwell%2C+B%2E%22&quot;&gt;Helliwell, B.&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Howard%2C+C%2E%22&quot;&gt;Howard, C.&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Liptrot%2C+M%2E%22&quot;&gt;Liptrot, M.&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Tawana%2C+S%2E%22&quot;&gt;Tawana, S.&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Wilson%2C+E%2E%22&quot;&gt;Wilson, E.&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Rowe%2C+F%2E+J%2E%22&quot;&gt;Rowe, F. J.&lt;/searchLink&gt; (AUTHOR)
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Quality+of+Life+Research%22&quot;&gt;Quality of Life Research&lt;/searchLink&gt;. Mar2024, Vol. 33 Issue 3, p777-791. 15p.
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  Data: &lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Vision+disorders%22&quot;&gt;Vision disorders&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Brain+injuries%22&quot;&gt;Brain injuries&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Stroke+units%22&quot;&gt;Stroke units&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Rasch+models%22&quot;&gt;Rasch models&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Stroke+patients%22&quot;&gt;Stroke patients&lt;/searchLink&gt;
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  Data: Purpose: The Brain Injury associated Visual Impairment - Impact Questionnaire (BIVI-IQ) was developed to assess the impact of post-stroke visual impairment. The development of the questionnaire used robust methods involving stroke survivors and clinicians. The aim of this study was to assess the validity of the BIVI-IQ in a stroke population. Methods: Stroke survivors with visual impairment were recruited from stroke units, outpatient clinics and non-healthcare settings. Participants were asked to complete questionnaire sets on three separate occasions; the BIVI-IQ at each visit with additional questionnaires at baseline and visit 2. Vision assessment and anchor questions from participants and clinicians were collected. The analysis included assessment of missing data, acceptability, Rasch model analysis, test–retest reliability, construct validity (NEI VFQ-25, EQ-5D-5L) and responsiveness to change. Results: 316 stroke survivors completed at least one questionnaire of the 326 recruited. Mean age was 67 years and 64% were male. Adequate fit statistics to the Rasch model were reached (χ2 = 73.12, p = 0.02) with two items removed and thresholds of two adjusted, indicating validity and unidimensionality. Excellent test–retest reliability was demonstrated (ICC = 0.905) with a 3-month interval. Construct validity was demonstrated with a strong significant correlation to the NEI VFQ-25 (r = 0.837, p &lt; 0.01). The BIVI-IQ also demonstrated responsiveness to change with significant differences identified between groups based on participant and clinician anchor questions (X2 = 23.29, p &lt; 0.001; X2 = 24.56, p &lt; 0.001). Conclusion: The BIVI-IQ has been shown to be valid and practical for &#39;everyday&#39; use by clinicians and researchers to monitor vision-related quality of life in stroke survivors with visual impairment. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of Quality of Life Research is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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