The DOI matches its Crossref record; 14 of the 15 references it cites were found in a registry or an index.
Correlated physical and mental health summary scores for the SF-36 and SF-12 Health Survey, V.1
Open accessAbstract
BACKGROUND: The SF-36 and SF-12 summary scores were derived using an uncorrelated (orthogonal) factor solution. We estimate SF-36 and SF-12 summary scores using a correlated (oblique) physical and mental health factor model. METHODS: We administered the SF-36 to 7,093 patients who received medical care from an independent association of 48 physician groups in the western United States. Correlated physical health (PCSc) and mental health (MCSc) scores were constructed by multiplying each SF-36 scale z-score by its respective scoring coefficient from the obliquely rotated two factor solution. PCSc-12 and MCSc-12 scores were estimated using an approach similar to the one used to derive the original SF-12 summary scores. RESULTS: The estimated correlation between SF-36 PCSc and MCSc scores was 0.62. There were far fewer negative factor scoring coefficients for the oblique factor solution compared to the factor scoring coefficients produced by the standard orthogonal factor solution. Similar results were found for PCSc-12, and MCSc-12 summary scores. CONCLUSION: Correlated physical and mental health summary scores for the SF-36 and SF-12 derived from an obliquely rotated factor solution should be used along with the uncorrelated summary scores. The new scoring algorithm can reduce inconsistent results between the SF-36 scale scores and physical and mental health summary scores reported in some prior studies.(Subscripts C = correlated and UC = uncorrelated).
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“Factor analyses of scale scores for the SF-36 health survey, provided strong support for two underlying factors with physical health defined primarily by measures of physical functioning, pain, and role limitations due to physical health problems, and by mental health reflected primarily by measures of emotional well-being and role limitations caused by emotional problems [17–18].”
From PROMIS®-29 v2.0 profile physical and mental health summary scores (2018) · cites this paper as [17]
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“Allowing the underlying physical and mental health summary scores to be correlated reflects the reality of health and eliminates the inconsistency between scale scores and summary measures [17].”
From PROMIS®-29 v2.0 profile physical and mental health summary scores (2018) · cites this paper as [17]
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WARE, J. E., KOSINSKI, M., & KELLER, S. D. (1996) · Medical Care · doi:10.1097/00005650-199603000-00003 · Cited by 17,392
(1994) · Medical Entomology and Zoology · Cited by 4,156
The rand 36‐item health survey 1.0
Hays, R. D., Sherbourne, C. D., & Mazel, R. M. (1993) · Health Economics · doi:10.1002/hec.4730020305 · Cited by 2,971
Self-citationThe RAND-36 measure of health-related quality of life
Hays, R. D., & Morales, L. S. (2001) · Annals of Medicine · doi:10.3109/07853890109002089 · Cited by 1,460 · cited 1×
“[13] Summary scores that are forced to be uncorrelated may yield contradictory results compared to the scale scores.”
ResultSelf-citationThe Factor Structure of the SF-36 Health Survey in 10 Countries
Ware, J. E., Kosinski, M. R., Gandek, B., Aaronson, N. K., Apolone, G., Bech, P., Brazier, J. E., Bullinger, M., Kaasa, S., Leplège, A., et al. (1998) · Journal of Clinical Epidemiology · doi:10.1016/s0895-4356(98)00107-3 · Cited by 669
McHorney, C. A., Kosinski, M. R., & Ware, J. E. (1994) · Medical Care · doi:10.1097/00005650-199406000-00002 · Cited by 605
Interpreting SF&-36 summary health measures: A response
Ware, J. E., & Kosinski, M. R. (2001) · Quality of Life Research · doi:10.1023/a:1012588218728 · Cited by 569
Do SF-36 summary component scores accurately summarize subscale scores?
Taft, C., Karlsson, J., & Sullivan, M. (2001) · Quality of Life Research · doi:10.1023/a:1012552211996 · Cited by 392
SF-36 Summary Scores: Are Physical and Mental Health Truly Distinct
Simon, G. E., Revicki, D. A., Grothaus, L., & Vonkorff, M. (1998) · Medical Care · doi:10.1097/00005650-199804000-00012 · Cited by 211
Performance of the RAND-12 and SF-12 summary scores in type 2 diabetes
Johnson, J. A., & Maddigan, S. L. (2004) · Quality of Life Research · doi:10.1023/b:qure.0000018494.72748.cf · Cited by 65
Member Ratings of Health Care Provided by 48 Physician Groups
Hays, R. D., Brown, J. A., Spritzer, K. L., Dixon, W., & Brook, R. H. (1998) · Archives of Internal Medicine · doi:10.1001/archinte.158.7.785 · Cited by 34
Self-citationCunningham, W. E., Nakazono, T. T., Tsai, K., & Hays, R. D. (2003) · Quality of Life Research · doi:10.1023/a:1026191016380 · Cited by 32
Self-citationWiklund, I. E., Wir�n, L., Erling, A., KARLBERG, J. P. E., & Albertsson-Wikland, K. G. (1994) · Quality of Life Research · doi:10.1007/bf00435397 · Cited by 32
Blanchard, C. M., Côté, I., & Feeny, D. H. (2004) · International Journal of Technology Assessment in Health Care · doi:10.1017/s0266462304001011 · Cited by 21
Research works printed but not linked: 5
- Ware JE, Kosinski M, Gandek B: SF-36 ® Health Survey: Manual & Interpretation Guide. Lincoln, RI: QualityMetric Incorporated;1993; 2000.
- Ware JE, Kosinski M, Turner-Bowker DM, Gandek B: How to Score Version 2 of the SF-12 Health Survey (With a Supplement Documenting Version 1). Lincoln, RI: QualityMetric Incorporated; 2002.
- Taft C: Reply to Drs Ware and Kosinski. Qual Life Res 2001, 10: 415–420. 10.1023/A:1012552211996 · DOI · Paper page
- Hays RD, Morales LS: The RAND-36 measure of health-related quality of life. Ann Med 2001, 33: 350–357. · DOI · Paper page
- Hays RD, Prince-Embury S, Chen H: R-36 HIS: RAND-36 Health Status Inventory. San Antonio, TX: The Psychological Corporation; 1998.
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Hays, R. D., Bjorner, J. B., Revicki, D. A., Spritzer, K. L., & Cella, D. (2009) · Quality of Life Research · doi:10.1007/s11136-009-9496-9 · Cited by 1,957
Self-citationSF-36 total score as a single measure of health-related quality of life: Scoping review
Lins-Kusterer, L., & Carvalho, F. M. (2016) · SAGE Open Medicine · doi:10.1177/2050312116671725 · Cited by 1,258
PROMIS®-29 v2.0 profile physical and mental health summary scores
Hays, R. D., Spritzer, K. L., Schalet, B. D., & Cella, D. (2018) · Quality of Life Research · doi:10.1007/s11136-018-1842-3 · Cited by 684
Self-citationGreen, B. B. (2008) · JAMA · doi:10.1001/jama.299.24.2857 · Cited by 653
Scoring the SF-36 in Orthopaedics: A Brief Guide
Laucis, N. C., Hays, R. D., & Bhattacharyya, T. (2015) · Journal of Bone and Joint Surgery · doi:10.2106/jbjs.o.00030 · Cited by 438
Self-citation
Metadata
- Authors
- Farivar, S. S., Cunningham, W. E., & Hays, R. D.
- Affiliations
- Amgen (United States) (US)
- University of California, Los Angeles (US)
- RAND Corporation (US)
- Corresponding author
- Farivar, Sepideh S
- Venue
- Health and Quality of Life Outcomes
- Published
- 2007-09-07
- Volume
- 5
- Issue
- 1
- Pages
- 54-54
- ISSN
- 1477-7525 (ISSN-L)
- PMC
- PMC2065865
- OpenAlex
- W2097456882
- Cited by
- 412
- References
- 15
- Citations by year
- 2026: 19 · 2025: 35 · 2024: 40 · 2023: 30 · 2022: 33 · 2021: 43 · 2020: 35 · 2019: 29 · 2018: 23 · 2017: 28 · 2016: 17 · 2015: 18 · 2014: 7 · 2013: 10 · 2012: 7
- FWCI
- 22.29
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Health and Quality of Life Outcomes (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- eScholarship (California Digital Library) (submittedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- Funders
- National Institutes of Health (5p20md000148-05)
- National Institute on Aging (AG20679-01, P01AG020679)
- National Institute on Minority Health and Health Disparities (P20-MD00148-01, P20-MD000148)
- Topics
- Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Health Systems, Economic Evaluations, Quality of Life
- Social Sciences › Decision Sciences › Management Science and Operations Research › Psychometric Methodologies and Testing
- Health Sciences › Health Professions › Physical Therapy, Sports Therapy and Rehabilitation › Musculoskeletal pain and rehabilitation
- Keywords
- SF-36, SF-12, health-related quality of life, patient-reported outcomes
- MeSH terms
- Adolescent, Adult, Algorithms, Female, Health Services Accessibility, Health Status Indicators, Humans, Independent Practice Associations, Male, Mental Health, Middle Aged, Quality of Life, Surveys and Questionnaires, United States, Utilization Review, Sickness Impact Profile
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