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Single item self-rated general health: SF-36 based observations from 16,910 spine surgery procedures
Örebro University, School of Medical Sciences. Department of Orthopedics, Örebro University Hospital, Örebro, Sweden.ORCID iD: 0000-0002-7931-9617
Clinical and Molecular Osteoporosis Research Unit, Department of Clinical Sciences and Orthopaedics, Lund University, Skåne University Hospital, Malmö, Sweden.
Örebro University, School of Medical Sciences. Örebro University Hospital. Department of Orthopedics, Örebro University Hospital, Örebro, Sweden.ORCID iD: 0000-0002-7376-4664
Örebro University, School of Medical Sciences. Örebro University Hospital. University Health Care Research Center.ORCID iD: 0000-0002-2559-5456
2022 (English)In: Quality of Life Research, ISSN 0962-9343, E-ISSN 1573-2649, Vol. 31, no 6, p. 1819-1828Article in journal (Refereed) Published
Abstract [en]

PURPOSE: In spine surgery single item patient-reported outcome assessment has been used for many years. Items 1 and 2 of SF-36 are used for assessment of general health. We used these items to explore single item, self-rated, general health assessment after spine surgery.

METHODS: Patients operated for lumbar disc herniation or lumbar spinal stenosis between 2007 and 2017, were recruited from the national Swedish spine register. A total of 16,910 procedures were eligible for analysis. The responsiveness of the SF-36 general health assessment items to surgical treatment was evaluated with the standardized response mean (SRM). Improvement in self-rated general health was used to dichotomize SF-36 profiles and EQ VAS distributions.

RESULTS: For disc herniation, 5852 (83%) patients reported improvement in general health 1 year after surgery. For spinal stenosis, the corresponding numbers were 6,482 (66%). The additional improvement after year 1 was small. The responsiveness of the SF-36 item 2 (the health transition item) to surgical treatment of disc herniation or spinal stenosis was substantial. There was a clear association between improvement in SF-36 item 2 and improvements in all domains of SF-36.

CONCLUSIONS: Surgery for disc herniation or spinal stenosis improve patients' perception of general health 1 year after surgery. The improvement in general health after year 1 is limited. The SF-36 item 2 is a responsive measure of self-rated general health that may be used for dichotomization of SF-36 and EQ VAS data when evaluating surgical outcome in spine surgery.

Place, publisher, year, edition, pages
Springer, 2022. Vol. 31, no 6, p. 1819-1828
Keywords [en]
Disc herniation, EQ VAS, EQ-5D, Health transition item, Health-related quality of life, Responsiveness, SF-36, Single item self-rated general health, Spinal stenosis
National Category
Orthopaedics
Identifiers
URN: urn:nbn:se:oru:diva-95662DOI: 10.1007/s11136-021-03048-0ISI: 000722559900001PubMedID: 34825299Scopus ID: 2-s2.0-85119868703OAI: oai:DiVA.org:oru-95662DiVA, id: diva2:1615006
Available from: 2021-11-29 Created: 2021-11-29 Last updated: 2024-01-02Bibliographically approved

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Joelson, AndersSigmundsson, Freyr GautiKarlsson, Jan

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