The Indonesian version of the Medical Outcome Survey ‐ Short Form 12 version 2 among patients with cardiovascular diseases

• Published in: International journal of nursing practice 2020-04, Vol.26 (2), p.e12804-n/a
• Main Authors: Wicaksana, Anggi Lukman, Maharani, Erika, Hertanti, Nuzul Sri
• Format: Article
• Language: English
• Subjects: Cardiovascular diseases; Discriminant validity; Health care; Indonesia; Nursing; Polls & surveys; Primary care; Principal components analysis; psychometrics; Quality of life; Quantitative psychology; Questionnaires; Readability; Reliability; SF‐12; Validity
• ISSN: 1322-7114; 1440-172X
• DOI: 10.1111/ijn.12804

Aim The aim of this study is to examine psychometric properties of the Indonesian version of Medical Outcome Survey Short Form 12 version 2 (SF12v2). Methods A cross‐sectional study was conducted in three primary healthcare units in Yogyakarta, Indonesia. Patients with cardiovascular diseases who were able to respond to questionnaires and provide their consent were invited. The validity test included face, content, discriminant, and construct validity. The internal consistency was used as the reliability indicator. Results The item and subscale of content validity index were 0.97 and 0.83, respectively. The instrument had 100% for equivalence and clarity outcomes, whereas the readability outcome was 91.7%. More than 80% of participants agreed and considered SF12v2 understandable. The correlations among physical and mental subscales were substantial, supporting discriminant validity. The Bartlett test of sphericity was significant with the Kaiser‐Meyer‐Olkin test of 0.74. The principal component analysis resulted in eight components, explaining 88.4% of total variance. α coefficients for subscale were ranging from.58 to.81, whereas the physical and mental component summaries were.77 and.67, respectively. Conclusions The Indonesian version of SF12v2 indicated a reliable and valid instrument. The SF12v2, available in a Bahasa Indonesia version, is an applicable instrument to assess quality of life on patients with cardiovascular diseases. SUMMARY STATEMENT What is already known about this topic? Quality of life plays an important role to evaluate the disease outcomes for patients with cardiovascular diseases. The translated version of the SF12v2 in Bahasa Indonesia is available, but there is no evidence of validity and reliability of the instruments. What this paper adds? This paper provides evidence of validity and reliability indicators for the Indonesian version of the SF12v2. The cross‐cultural adaptation process confirms that this is an unbiased and valid instrument. The implications of this paper: Nurses could apply the instrument to assess the quality of life among patients with cardiovascular diseases. Future studies concerning health‐related quality of life among the Indonesian population with cardiovascular diseases could be enhanced.