Item reduction and validation of the Chinese version of diabetes quality-of-life measure (DQOL).

ABSTRACT:

Background

The Diabetes Quality-of-Life (DQOL) Measure is a 46-item diabetes-specific quality of life instrument. The original English version of the DQOL has been translated into Chinese after cultural adaption, and the Chinese DQOL has been validated in the Chinese diabetic patient population and used in diabetes-related studies. There are two recognized problems with the Chinese DQOL: 1) the instrument is too long, and 2) the non-response rate of certain items is relatively high. This study aimed to develop and validate a short version for the Chinese DQOL.

Methods

Item reduction was conducted based on the classical test theory (CTT) and item response theory (IRT), each combined with exploratory factor analysis (EFA). The confirmatory factor analysis (CFA) and Spearman co

SUBMITTER: Jin X 

PROVIDER: S-EPMC5921810 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature