Further validation of Zagazig depression scale shortened form (ZDS-SF) and depression diagnosis in a United Kingdom (UK) student population

IBRAHIM, AK, KELLY, Shona and GLAZEBROOK, C (2012). Further validation of Zagazig depression scale shortened form (ZDS-SF) and depression diagnosis in a United Kingdom (UK) student population. International Journal of Medicine and Medical Sciences, 2 (11), 221-227.

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Abstract

The Zagazig Depression Scale has been validated in Egyptian populations and the shortened form (ZDS-SF) found high rates of depression in Egyptian students. Preliminary research has supported the validity and reliability of the measure in a UK student but further work is needed. The study aimed to determine the criterion validity of the ZDS-SF against a clinical interview and its test-retest reliability in a UK student sample. Participants (n=20) completed online measures of the Patient Health Questionnaire and the ZDS-SF at time 1. At time 2 (median follow-up 15 days) they were interviewed using the Clinical Assessment in Neuropsychiatry (SCAN) to establish a clinical diagnosis of depression, followed by re-administration of the online measures. There was excellent (95%)agreement for diagnosis of depression between time 2 ZDS-SF and SCAN (Kappa = 0.89). The sensitivity of the ZDS-SF was 100% and the specificity 93.3%, giving an overall positive predictive value of 83.3%. The ZDS-SF symptom score also had good response stability over a two week interval (ICC = 0.66). ZDS-SF scale is a valid measure of depression for use in a UK university student cohort with good psychometric properties and can be used for cross-cultural comparison studies.

Item Type: Article
Research Institute, Centre or Group: Centre for Health and Social Care Research
Depositing User: Shona Kelly
Date Deposited: 24 Jan 2013 14:27
Last Modified: 24 Jan 2013 14:27
URI: http://shura.shu.ac.uk/id/eprint/6650

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