Validity and reliability of MOS short form health survey (SF-36) for use in India

Background: Health is defined as the state of complete physical, mental and social well-being than just the absence of disease or infirmity. In order to measure health in the community, a reliable and validated instrument is required. Objectives: To adapt and translate the Medical Outcomes Study Sho...

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Bibliographic Details
Published in:Indian journal of community medicine 2013-01, Vol.38 (1), p.22-26
Main Authors: Sinha, Richa, van den Heuvel, Wim, Arokiasamy, Perianayagam
Format: Article
Language:English
Subjects:
Demographic aspects
Evaluation
Health surveys
Methods
Original
Outcome and process assessment (Health Care)
quality of life
questionnaires
reliability
translations
validity
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Summary:Background: Health is defined as the state of complete physical, mental and social well-being than just the absence of disease or infirmity. In order to measure health in the community, a reliable and validated instrument is required. Objectives: To adapt and translate the Medical Outcomes Study Short-Form Health Survey (SF-36) for use in India, to study its validity and reliability and to explore its higher order factor structure. Materials and Methods: Face-to-face interviews were conducted in 184 adult subjects by two trained interviewers. Statistical analyses for establishing item-level validity, scale-level validity and reliability and tests of known group comparison were performed. The higher order factor structure was investigated using principal component analysis with varimax rotation. Results: The questionnaire was well understood by the respondents. Item-level validity was established using tests of item internal consistency, equality of item-scale correlations and item-discriminant validity. Tests of scale-level validity and reliability performed well as all the scales met the required internal consistency criteria. Tests of known group comparison discriminated well across groups differing in socio-demographic and clinical variables. The higher order factor structure was found to comprise of two factors, with factor loadings being similar to those observed in other Asian countries. Conclusion: The item-and scale-level statistical analyses supported the validity and reliability of SF-36 for use in India.
ISSN:0970-0218
1998-3581
DOI:10.4103/0970-0218.106623