Evaluation of quality of life instrument for nephrotic syndrome based on generalization theory and item response theory
10.3969/j.issn.1671-8348.2024.09.003
- VernacularTitle:基于概化理论与项目反应理论的肾病综合征生命质量测定量表评价
- Author:
Yue LIN
1
;
Xingshan ZHANG
;
Junhao GUO
;
Wendan CHEN
;
Chonghua WAN
;
Haiyan PAN
Author Information
1. 广东医科大学公共卫生学院,广东东莞 523808
- Keywords:
quality of life;
nephrotic syndrome;
generalization theory;
item response theory
- From:
Chongqing Medicine
2024;53(9):1295-1300
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the performance of the Quality of Life Instrument for Chronic Dis-ease Nephrotic Syndrome [QLICD-NS(V2.0)] in patients with nephrotic syndrome.Methods A total of 203 patients with nephrotic syndrome (NS) diagnosed in the Department of Nephrology,Affiliated Hospital of Guangdong Medical University from March 2021 to November 2021 were selected for QLICD-NS(V2.0) eval-uation,and the evaluation methods were generalization theory (GT) and item response theory (IRT).The dif-ficulty,discrimination coefficient and information amount of each item were obtained by using Multilog 7.0 software to analyze the grade response model (GRM) of IRT.Results The results of GT showed that the contribution ratio of the global total score in the four domains of QLICD-NS(V2.0) scale was evenly distribu-ted,and the generalization coefficient of the four domains was greater than 0.50.Except for social function,the variance component of the participants in the other three domains were greater than the item variance compo-nent,and the reliability index of each domain was greater than 0.50.The results of IRT showed that the dis-crimination degree of QLICD-NS(V2.0) scale was 0.82.Except for items TNS7 and TNS8,the difficulty coef-ficients of the other items ranged from -3 to 3 and increase monotonically.Conclusion The QLICD-NS (V2.0) scale has good reliability in physiological function and psychological function,and is acceptable in so-cial field and special function.The QLICD-NS(V2.0) scale developed in this study has good performance.
