Analysis of Glaucoma Quality of Life 17 based on the item response theory
10.3760/cma.j.issn.1674-2907.2019.25.010
- VernacularTitle:中文版青光眼患者生活质量量表的项目反应理论分析
- Author:
Qiyuan LYU
1
;
Wenmin HUANG
;
Gaofeng LI
;
Weixin ZHENG
;
Huiming XIAO
Author Information
1. 中山大学护理学院护理学基础教研室
- Keywords:
Glaucoma;
Quality of life;
Scale;
Item Response Theory
- From:
Chinese Journal of Modern Nursing
2019;25(25):3211-3214
- CountryChina
- Language:Chinese
-
Abstract:
Objective? To evaluate the Chinese version of Glaucoma Quality of Life 17 (Glau-QoL17) by item analysis on each item using item response theory(IRT), so as to provide tools in life quality evaluation in patients with glaucoma in China. Methods? By convenience sampling, 198 glaucoma patients admitted in the outpatient department of Opthalmic Center affiliated to Sun Yat-Sen University from May 2017 to July 2018 were selected and their life quality were evaluated by using the Chinese version of Glau-QoL17. MULTILOG 7.0 was used to analyze the collected data in IRT and calculate the discrimination and difficulty parameters of each item. Results? The Chinese version of Glau-QoL17 had good discrimination. The discrimination parameter (α) ranged from 1.50 to 5.23, and the difficulty increased monotonously. Except for the entry "Are you afraid of surgeries?", the other items ranged from-3 to 3; the coverage area under the item information curve was relatively large except for item "Currently, I am very well-informed about my visual problems." Conclusions? The Chinese version of Glau-QoL17 can be used in the evaluation of the glaucoma patients' quality of life in our country, however, it still needs further modification on its content so as to improve the accuracy of the evaluation.
