Validation of the Backbone Oncology Examine Group-Outcomes Questionnaire to evaluate high quality of life in sufferers with metastatic backbone illness.
Backbone J. 2017 Jun;17(6):768-776
Authors: Janssen SJ, Teunis T, van Dijk E, Ferrone ML, Shin JH, Hornicek F, Schwab JH
BACKGROUND CONTEXT: Normal questionnaires are sometimes used to evaluate high quality of life in sufferers with backbone metastases, though a disease-specific survey didn’t exist till just lately. The Backbone Oncology Examine Group has developed an outcomes questionnaire (SOSG-OQ) to measure high quality of life in these sufferers. Nevertheless, a scoring system was not developed, and the questionnaire was not validated in a bunch of sufferers, nor was it in contrast with different basic high quality of life questionnaires such because the EuroQol 5 Dimensions (EQ-5D) questionnaire.
PURPOSE: Our major null speculation is that there is no such thing as a affiliation between the SOSG-OQ and EQ-5D. Our secondary null speculation is that there is no such thing as a distinction in protection and inside consistency between the SOSG-OQ and EQ-5D. We additionally assess protection, consistency, and validity of the domains inside the SOSG-OQ.
STUDY DESIGN/SETTING: A survey examine from a tertiary care backbone referral middle was used for this examine.
PATIENT SAMPLE: The affected person pattern consisted of 82 sufferers with backbone metastases, myeloma, or lymphoma.
OUTCOME MEASURES: The SOSG-OQ (27 questions, 6 domains) rating ranges from Zero to 80, with the next rating indicating worse high quality of life. The EQ-5D (5 questions, 5 domains) index rating ranges from Zero to 1, with the next rating indicating higher high quality of life.
METHODS: The affiliation between the SOSG-OQ and EQ-5D index rating was assessed utilizing the Spearman rank correlation. Instrument protection and precision had been assessed by figuring out merchandise completion price, median rating with vary, and flooring and ceiling impact. Inside consistency was assessed utilizing Cronbach alpha. Multitrait evaluation and exploratory issue evaluation had been used to research properties of the person domains within the SOSG-OQ.
RESULTS: The Spearman rank correlation between the SOSG-OQ and EQ-5D questionnaire was excessive (r=-Zero.83, p<.001). Inside consistency of the SOSG-OQ (Zero.92, 95% CI: Zero.89-Zero.94) was larger as in comparison with the inner consistency of the EQ-5D (Zero.73, 95% CI: Zero.63-Zero.84; p<.001). The SOSG-OQ rating had no flooring or ceiling impact indicating good protection (median 30, vary Three-64), whereas the EQ-5D had a ceiling impact of 10% (median Zero.71, vary Zero.05-1).
CONCLUSIONS: In conclusion, our examine proposes a scoring methodology-after reversing 4 inversely scored items-for the SOSG-OQ and reveals that the questionnaire is a legitimate device for the evaluation of high quality of life in sufferers with metastatic backbone illness. The SOSG-OQ is superior to the EQ-5D when it comes to protection and inside consistency however consists of extra questions.
PMID: 26254565 [PubMed – indexed for MEDLINE]