PMID- 33563262
OWN - NLM
STAT- MEDLINE
DCOM- 20210505
LR  - 20230919
IS  - 1477-7525 (Electronic)
IS  - 1477-7525 (Linking)
VI  - 19
IP  - 1
DP  - 2021 Feb 9
TI  - The Malay version of SF-36 health survey instrument: testing data quality, 
      scaling assumptions, reliability and validity in post-coronary artery bypass 
      grafting (CABG) surgery patients at the National Heart Institute (Institut 
      Jantung Negara-IJN), Kuala Lumpur.
PG  - 50
LID - 10.1186/s12955-020-01658-9 [doi]
LID - 50
AB  - BACKGROUND: The Short Form 36 (SF-36) is a scoring system comprising of 36 items 
      categorized into eight constructs corresponding to patients' health-related 
      quality of life. It has been used extensively in various countries on different 
      sub-populations and used to indicate the health status and help to ascertain the 
      effect of clinical interventions on the particular population. OBJECTIVE: To 
      examine the psychometric properties of the Malay version of SF-36 (Malay SF-36) 
      summated rating scales and validate the scale among post-coronary artery bypass 
      grafting surgery (CABG) patients at the National Heart Institute (IJN), Kuala 
      Lumpur. METHODS: Five hundred and nine post-CABG patients at the IJN, Malaysia 
      completed the questionnaires between 1 July and 31 December 2017. Psychometric 
      tests endorsed by the "International Quality of Life Assessment Project" were 
      utilised. RESULTS: The data quality was excellent with a high questionnaire 
      completion rate (100%). As hypothesized, the ordering of item means within scales 
      was clustered. In unison, scaling assumptions were satisfied. Good discriminant 
      validity was shown between subsets of patients with various levels of health 
      status. Notwithstanding, there were probably translation issues of the Physical 
      Functioning scale which showed small ceiling effects. We clearly observed high 
      ceiling and floor effects in both Role Physical and Role Emotional scale most 
      probably attributed to the dichotomous style of their choice of responses. 
      Cronbach alpha values of the eight scales ranged from 0.73 to 0.90, showing good 
      internal consistency reliability. Confirmatory Factor Analysis (CFA) confirmed 
      the 8-factor solution and Composite Reliability revealed internal consistency 
      reliability except for Vitality and Social Functioning. Based on the Average 
      Variance Extracted (AVE), convergent validity was adequate except for two 
      domains. Discriminant Validity is good for the eight constructs as the  radicalAVE are 
      generally higher than the correlation coefficients between the latent constructs. 
      CONCLUSION: The scoring for the Malay SF-36 based on the summated ratings method 
      was proven to be valid to be applied in our local clinical population. The CFA, 
      fitness estimates, reliability and validity assessments suggest that the Malay 
      version of SF36 is a valid and reliable instrument. However, further work is 
      warranted to further refine the convergent validity and reliability of some 
      scales.
FAU - Musa, Ahmad Farouk
AU  - Musa AF
AUID- ORCID: 0000-0002-2303-7813
AD  - Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 
      Bandar Sunway, Malaysia. farouk@monash.edu.
FAU - Yasin, Mohamed Shajahan Mohamed
AU  - Yasin MSM
AD  - Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 
      Bandar Sunway, Malaysia.
FAU - Smith, Julian
AU  - Smith J
AD  - Department of Surgery, School of Clinical Sciences at Monash Health, Monash 
      University, Clayton, Australia.
AD  - Department of Cardiothoracic Surgery, Monash Health, Melbourne, Australia.
FAU - Yakub, Mohd Azhari
AU  - Yakub MA
AD  - Department of Cardiothoracic Surgery, National Heart Institute, Kuala Lumpur, 
      Malaysia.
FAU - Nordin, Rusli Bin
AU  - Nordin RB
AD  - School of Medicine, Faculty of Health and Medical Sciences, Taylor's University, 
      Subang Jaya, Malaysia.
LA  - eng
GR  - MMRD-MS-1801/HOVID/
GR  - MMRD-MS-2001/Malaysian Palm Oil Board (MPOB)/
PT  - Journal Article
PT  - Validation Study
DEP - 20210209
PL  - England
TA  - Health Qual Life Outcomes
JT  - Health and quality of life outcomes
JID - 101153626
SB  - IM
MH  - Adult
MH  - Coronary Artery Bypass/*psychology
MH  - Female
MH  - Humans
MH  - Malaysia
MH  - Male
MH  - Middle Aged
MH  - *Quality of Life
MH  - Reproducibility of Results
MH  - Surveys and Questionnaires/*standards
MH  - Translations
PMC - PMC7874445
OTO - NOTNLM
OT  - Composite reliability
OT  - Confirmatory factor analysis (CFA)
OT  - Convergent validity
OT  - Cronbach alpha
OT  - Data quality
OT  - Discriminant validity
OT  - Internal consistency
OT  - Malay version of SF-36
OT  - Reliability
OT  - Scaling assumptions
OT  - Validity
COIS- No competing interests were disclosed.
EDAT- 2021/02/11 06:00
MHDA- 2021/05/06 06:00
PMCR- 2021/02/09
CRDT- 2021/02/10 05:36
PHST- 2020/03/21 00:00 [received]
PHST- 2020/12/21 00:00 [accepted]
PHST- 2021/02/10 05:36 [entrez]
PHST- 2021/02/11 06:00 [pubmed]
PHST- 2021/05/06 06:00 [medline]
PHST- 2021/02/09 00:00 [pmc-release]
AID - 10.1186/s12955-020-01658-9 [pii]
AID - 1658 [pii]
AID - 10.1186/s12955-020-01658-9 [doi]
PST - epublish
SO  - Health Qual Life Outcomes. 2021 Feb 9;19(1):50. doi: 10.1186/s12955-020-01658-9.