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Health and Quality of Life Outcomes
Published in: Health and Quality of Life Outcomes 1/2015

Open Access 01-12-2015 | Research

Translation, cross-cultural adaptation and psychometric evaluation of yoruba version of the short-form 36 health survey

Authors: Chidozie Emmanuel Mbada, Gafar Atanda Adeogun, Michael Opeoluwa Ogunlana, Rufus Adesoji Adedoyin, Adesanmi Akinsulore, Taofeek Oluwole Awotidebe, Opeyemi Ayodiipo Idowu, Olumide Ayoola Olaoye

Published in: Health and Quality of Life Outcomes | Issue 1/2015

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Abstract

Background and objective

The Short-Form Health Survey (SF-36) is a valid quality of life tool often employed to determine the impact of medical intervention and the outcome of health care services. However, the SF-36 is culturally sensitive which necessitates its adaptation and translation into different languages. This study was conducted to cross-culturally adapt the SF-36 into Yoruba language and determine its reliability and validity.

Methods

Based on the International Quality of Life Assessment project guidelines, a sequence of translation, test of item-scale correlation, and validation was implemented for the translation of the Yoruba version of the SF-36. Following pilot testing, the English and the Yoruba versions of the SF-36 were administered to a random sample of 1087 apparently healthy individuals to test validity and 249 respondents completed the Yoruba SF-36 again after two weeks to test reliability. Data was analyzed using Pearson’s product moment correlation analysis, independent t-test, one-way analysis of variance, multi trait scaling analysis and Intra-Class Correlation (ICC) at p < 0.05.

Results

The concurrent validity scores for scales and domains ranges between 0.749 and 0.902 with the highest and lowest scores in the General Health (0.902) and Bodily Pain (0.749) scale. Scale-level descriptive result showed that all scale and domain scores had negative skewness ranging from −2.08 to −0.98. The mean scores for each scales ranges between 83.2 and 88.8. The domain scores for Physical Health Component and Mental Health Component were 85.6 ± 13.7 and 85.9 ± 15.4 respectively. The convergent validity was satisfactory, ranging from 0.421 to 0.907. Discriminant validity was also satisfactory except for item ‘1’. The ICC for the test-retest reliability of the Yoruba SF-36 ranges between 0.636 and 0.843 for scales; and 0.783 and 0.851 for domains.

Conclusion

The data quality, concurrent and discriminant validity, reliability and internal consistency of the Yoruba version of the SF-36 are adequate and it is recommended for measuring health-related quality of life among Yoruba population.
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Metadata
Title
Translation, cross-cultural adaptation and psychometric evaluation of yoruba version of the short-form 36 health survey
Authors
Chidozie Emmanuel Mbada
Gafar Atanda Adeogun
Michael Opeoluwa Ogunlana
Rufus Adesoji Adedoyin
Adesanmi Akinsulore
Taofeek Oluwole Awotidebe
Opeyemi Ayodiipo Idowu
Olumide Ayoola Olaoye
Publication date
01-12-2015
Publisher
BioMed Central
Published in
Health and Quality of Life Outcomes / Issue 1/2015
Electronic ISSN: 1477-7525
DOI
https://doi.org/10.1186/s12955-015-0337-y

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