Rasch Validation of the LVQOL Scale.

Q3 Medicine

Acta medica (Hradec Kralove) Pub Date : 2021-01-01 DOI:10.14712/18059694.2021.19

Ioanna Mylona, Vassilis Aletras, Nikolaos Ziakas, Ioannis Tsinopoulos

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引用次数: 0

Abstract

Aim: This study proceeds to rigorously examine and validate the Low Vision Quality-of-Life Questionnaire (LVQOL) on a Greek population of ophthalmic patients employing Rasch measurement techniques.

Methods: It is a prospective observational study of 150 cataract patients and 150 patients with other ophthalmic diseases, all followed longitudinally for a period of two months pending surgical or other corrective therapy, after which they were administered the LVQOL for a second time.

Results: The original 25-item LVQOL demonstrated high reliability and validity, excellent measurement precision and ordered response category thresholds. A small number of items carry an acceptable level of measurement error while three items had some differential functioning for gender, Age and underlying disorder that did not exceed the established thresholds.

Conclusions: This validation study is the first to employ Rasch measurement to examine the validity of the LVQOL and it supports its use with no changes to the original structure. The LVQOL can be employed in a large range of ophthalmic diseases and reliably assess improvements in quality-of-life following phacoemulsification surgery or any other intervention.

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LVQOL量表的Rasch验证。

目的:本研究严格检查和验证低视力生活质量问卷(LVQOL)在希腊人口眼科患者采用皮疹测量技术。方法:对150例白内障患者和150例其他眼科疾病患者进行前瞻性观察研究，随访2个月，等待手术或其他矫正治疗，第二次给予LVQOL。结果:原25项LVQOL量表信效度高，测量精度好，反应类别阈值有序。少数项目具有可接受的测量误差水平，而三个项目对性别，年龄和潜在障碍有一些不同的功能，但没有超过既定的阈值。结论:本研究首次采用Rasch测量法检验LVQOL的效度，支持其在不改变原结构的情况下使用。LVQOL可用于大范围的眼科疾病，并可靠地评估超声乳化手术或任何其他干预措施后生活质量的改善。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acta medica (Hradec Kralove) Medicine-Medicine (all)

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

20 weeks

期刊介绍： Acta Medica (Hradec Králové) is a multidisciplinary medical journal published by the Faculty of Medicine in Hradec Králové - Karolinum Press, the publishing house of Charles University. The journal is peer-reviewed and published quarterly in both paper and electronic form. The language of Acta Medica is English. Offerings include review articles, original articles, brief communications, case reports, announcements and notices. The journal was founded in 1958 under the title "A Collection of Scientific Works of the Charles University Faculty of Medicine in Hradec Kralove."