Rasch analysis of the hospital anxiety and depression scale among Chinese cataract patients.

ABSTRACT:

Purpose

To analyze the validity of the Hospital Anxiety and Depression Scale (HADS) among Chinese cataract population.

Methods

A total of 275 participants with unilateral or bilateral cataract were recruited to complete the Chinese version of HADS. The patients' demographic and ophthalmic characteristics were documented. Rasch analysis was conducted to examine the model fit statistics, the thresholds ordering of the polytomous items, targeting, person separation index and reliability, local dependency, unidimentionality, differential item functioning (DIF) and construct validity of the HADS individual and summary measures.

Results

Rasch analysis was performed on anxiety and depression subscales as well as HADS-Total score respectively. The items of original HADS-Anxie

SUBMITTER: Lin X 

PROVIDER: S-EPMC5614566 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature