Toker Ebru, Onal Sumru, Eraslan Muhsin, Eyriparmak Merih
Department of Ophthalmology, Marmara University School of Medicine, Istanbul, Turkey.
Qual Life Res. 2008 Dec;17(10):1269-76. doi: 10.1007/s11136-008-9407-5. Epub 2008 Nov 2.
To translate the original 42-item National Eye Institute Refractive Error Quality of Life Questionnaire (NEI-RQL-42) into Turkish and to investigate its validity and reliability.
The linguistic translation followed the international guidelines of forward and backward translation. Ninety-five consecutive subjects (37 myopes, 18 hyperopes and 40 emmetropes) who had a visual acuity of 0.8 or better in the worse eye completed the NEI-RQL-42 and the Turkish version of the 25-item National Eye Institute Visual Functioning Questionnaire (NEI-VFQ-25). Eighty patients completed the NEI-RQL-42 for a second time within 2 weeks. Psychometric evaluation of the Turkish NEI-RQL-42 involved the assessment of internal consistency, test-retest reliability, convergent and known-groups validity.
Internal consistency was generally high (Cronbach's alpha = 0.83-0.95), with the exception of three subscales (glare, alpha = 0.65; suboptimal correction, alpha = 0.66; appearance, alpha = 0.62). Test-retest reliability, assessed by the intraclass correlation coefficient was good (ICC = 0.74-0.95) except for the subscale suboptimal correction (ICC = 0.61). Almost all subscales and the overall score showed significant inter-correlations. Low to moderate correlations were found between the subscales of the NEI-RQL-42 and the NEI-VFQ-25, which measure similar constructs. The NEI-RQL-42 showed good construct validity in terms of refractive error (myopia, hyperopia and emmetropia) and mode of refractive correction (spectacles, contact lens and no correction) discrimination.
The Turkish version of the NEI-RQL-42 is a reliable and valid measure of vision-related quality of life in patients with refractive error.
将最初的42项美国国立眼科研究所屈光不正生活质量问卷（NEI-RQL-42）翻译成土耳其语，并调查其有效性和可靠性。
语言翻译遵循正向和反向翻译的国际准则。95名连续受试者（37名近视者、18名远视者和40名正视者）较差眼的视力为0.8或更好，他们完成了NEI-RQL-42以及25项美国国立眼科研究所视觉功能问卷（NEI-VFQ-25）的土耳其语版本。80名患者在2周内再次完成了NEI-RQL-42。土耳其语NEI-RQL-42的心理测量评估包括内部一致性、重测信度、收敛效度和已知群体效度的评估。
内部一致性总体较高（克朗巴哈系数α = 0.83 - 0.95），但有三个分量表除外（眩光，α = 0.65；矫正欠佳，α = 0.66；外观，α = 0.62）。通过组内相关系数评估的重测信度良好（ICC = 0.74 - 0.95），但矫正欠佳分量表除外（ICC = 0.61）。几乎所有分量表和总分都显示出显著的相互相关性。在测量相似结构的NEI-RQL-42和NEI-VFQ-25的分量表之间发现了低到中度的相关性。NEI-RQL-42在屈光不正（近视、远视和正视）和屈光矫正方式（眼镜、隐形眼镜和无矫正）鉴别方面显示出良好的结构效度。
NEI-RQL-42的土耳其语版本是一种可靠且有效的测量屈光不正患者视力相关生活质量的工具。
