Establishing the reliability and validity of the Zagazig Depression Scale in a UK student population: an online pilot study

BMC Psychiatry

Research Article

Shona J Kelly¹  Ahmed K Ibrahim²  Emily C Challenor³  Cris Glazebrook⁴ 

[1] Centre for Intergenerational Health Research, University of South Australia, Division of Health Sciences, Social Epidemiology Unit, City East Campus, Adelaide, Australia;Community Health School, Faculty of Medicine, Assiut University, Assiut, Egypt;Division of Epidemiology, Community Health Sciences School, D Floor, West Block, Queens Medical Centre, University of Nottingham, Nottingham, UK;Division of Epidemiology, Community Health Sciences School, D Floor, West Block, Queens Medical Centre, University of Nottingham, Nottingham, UK;Division of Psychiatry, Community Health Sciences School, A Floor, South Block, Queens Medical Centre, University of Nottingham, Nottingham, UK;

关键词: Depressive Symptom;    Patient Health Questionnaire;    Severe Depressive Symptom;    Family Affluence Scale;    Hamilton Depression Scale;   

DOI  :  10.1186/1471-244X-10-107

 received in 2010-07-21, accepted in 2010-12-10,  发布年份 2010

来源: Springer

【 摘 要 】

BackgroundIt is thought that depressive disorders will be the second leading cause of disability worldwide by 2020. Recently, there is a steady increase in the number of university students diagnosed and treated as depression patients. It can be assumed that depression is a serious mental health problem for university students because it affects all age groups of the students either younger or older equally. The current study aims to establish the reliability and validity of the Zagazig Depression scale in a UK sample.MethodsThe study was a cross-sectional online survey. A sample of 133 out of 275 undergraduate students from a range of UK Universities in the academic year 2008-2009, aged 20.3 ± 6.3 years old were recruited. A modified back translated version of Zagazig Depression scale was used. In order to validate the Zagazig Depression scale, participants were asked to complete the Patient Health Questionnaire. Statistical analysis includes Kappa analysis, Cronbach's alpha, Spearman's correlation analysis, and Confirmatory Factor analysis.ResultsUsing the recommended cut-off of Zagazig Depression scale for possible minor depression it was found that 30.3% of the students have depression and higher percentage was identified according to the Patient Health Questionnaire (37.4%). Females were more depressed. The mean ZDS score was 8.3 ± 4.2. Rates of depression increase as students get older. The reliability of The ZDS was satisfactory (Cronbach's alpha was .894). For validity, ZDS score was strongly associated with PHQ, with no significant difference (p-value > 0.05), with strong positive correlation (r = +.8, p-value < 0.01).ConclusionThe strong, significant correlation between the PHQ and ZDS, along with high internal consistency of the ZDS as a whole provides evidence that ZDS is a reliable measure of depressive symptoms and is promising for the use of the translated ZDS in a large-scale cross-culture study.

【 授权许可】

CC BY   
© Ibrahim et al; licensee BioMed Central Ltd. 2010. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.