Development and Validation of Perceived Stigma of Delirium Scale

Kim, Seon Young; Kim, Sung Wan; Kim, Jae Min; Shin, Il Seon; Yoon, Jin Sang

Abstract

OBJECTIVES
This study developed and validated the Perceived Stigma of Delirium Scale(PSDS), which is designed to measure perceived stigma associated with delirium in patients suffering from that disorder.
METHODS
Based on a literature review of scales assessing stigma, a preliminary scale comprising seven items was developed. After recovering from delirium, 128 patients completed the PSDS and the Distress Thermometer (DT). Factor analysis was used to examine construct validity, and internal consistency and test-retest reliability were examined to ensure reliability. Concurrent validity was assessed using the correlation between the total scores on the PSDS and the DT.
RESULTS
Factor analysis yielded a single-factor structure from the seven candidate items. One item was excluded due to low factor loading. The internal consistency was computed and Cronbach's Î± was 0.85 for the total score. The overall test-retest reliability was 0.71, with items ranging from 0.58 to 0.83. The total score on the PSDS was significantly correlated with the DT score.
CONCLUSIONS
The PSDS may be a reliable, valid instrument for evaluating perceived stigma in patients who have recovered from delirium. Further study of the perceived stigma by delirium patients is required to assess the implications of the PSDS for clinical practice and research.