Standardization of the Colombian version of the PHQ-4 in the general population

BMC Psychiatry

Andreas Hinz¹  Leon Sautier³  William Jimenez-Leal²  Carolyn Finck²  Rüya-Daniela Kocalevent³ 

[1]Department of Medical Psychology and Medical Sociology, University of Leipzig, Ph.-Rosenthal-Str. 55, 04103 Leipzig, Germany

[2]Department of Psychology, Universidad de Los Andes, Bogotá, Colombia

[3]Institute and Policlinic for Medical Psychology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany

关键词: General population;    PHQ-4;    Standardized data;    Depression;   

Others  :  1123457
DOI  :  10.1186/1471-244X-14-205

 received in 2014-04-07, accepted in 2014-07-11,  发布年份 2014

【 摘 要 】

Background

The PHQ-4 is a widely used open access screening instrument for depression and anxiety in different health care and community settings; however, empirical evidence of its psychometric quality in Colombia is lacking. The objectives of the current study were to generate normative data and to further investigate the construct validity and factorial structure of the PHQ-4 in the general population.

Methods

A nationally representative face-to-face household survey was conducted in Colombia in 2012 (n = 1,500). The item characteristics of the PHQ-4 items, including the inter-item correlations and inter-subscale correlations, were investigated. To measure the scale’s reliability, the internal consistency (Cronbach’s α) was assessed. For factorial validity, the factor structure of the PHQ-4 was examined with confirmatory factor analysis (CFA).

Results

The Cronbach’s alpha coefficient for the PHQ-4 was 0.84. The confirmatory factor analysis supported a two-factor model, which was structurally invariant between different age and gender groups. Normative data for the PHQ-4 were generated for both genders and different age levels. Women had significantly higher mean scores compared with men [1.4 (SD: 2.1) vs. 1.1 (SD: 1.9), respectively]. The results supported the discriminant validity of the PHQ-4.

Conclusions

The normative data provide a framework for the interpretation and comparisons of the PHQ-4 with other populations in Colombia. The evidence supports the reliability and validity of the two-factor PHQ-4 as a measure of anxiety and depression in the general Colombian population.

【 授权许可】

   
2014 Kocalevent et al.; licensee BioMed Central Ltd.

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