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Related Experiment Videos

Two depression rating instruments in Nigerian patients.

G T Okulate1, O B E Jones

  • 1Department of Psychiatry, Nigerian Army Base Hospital, P. M. B. 2004, Yaba, Lagos, Nigeria.

The Nigerian Postgraduate Medical Journal
|August 7, 2002
PubMed
Summary

The Hamilton Depression Rating Scale (HDRS) and Zung Self-Rating Scale (ZS) are useful for assessing depression in Nigeria. Modifications may improve their cultural applicability and predictive accuracy for major depressive disorder.

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Area of Science:

  • Psychiatry
  • Clinical Psychology
  • Cross-cultural Psychiatry

Background:

  • The Hamilton Depression Rating Scale (HDRS) and Zung Self-Rating Scale (ZS) were developed in foreign cultures, raising questions about their applicability in Nigeria.
  • Assessing the predictive capabilities of scale items for depression severity and the concurrence between HDRS and ZS in Nigerian patients is crucial.

Purpose of the Study:

  • To evaluate the cultural relevance of HDRS and ZS items for depression symptoms in Nigeria.
  • To determine the predictive value of individual scale items for overall depression severity.
  • To assess the inter-scale correlation between HDRS and ZS in a Nigerian population.

Main Methods:

  • Seventy-eight patients diagnosed with major depressive disorder (ICD 10 criteria) completed the ZS, and the HDRS was administered.

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  • Case records of these patients and six additional individuals were examined to extract depression symptoms.
  • Statistical analyses included calculating predictive values of scale items and inter-scale correlations.

    • Main Results:

    • Sleeplessness, somatic symptoms, and sad mood were the most frequent symptoms. The ZS also identified joylessness and indecisiveness.
    • The HDRS captured somatic symptoms more effectively than the ZS.
    • Items on the ZS generally showed better predictive value for overall depression severity compared to HDRS items.

    Conclusions:

    • Both the HDRS and ZS are valuable tools for depression assessment in Nigeria.
    • However, modifications and additions to these scales are recommended to enhance their cultural applicability and accuracy.
    • Specific items showed varying degrees of correlation, indicating potential areas for scale refinement.