1. Patient and physician shared decision-making behaviors in oncology: Evidence on adequate measurement properties of the iSHARE questionnaires
- Author
-
Bomhof-Roordink, H., Stiggelbout, A.M., Gartner, F.R., Portielje, J.E.A., Kroon, C.D. de, Peeters, K.C.M.J., Neelis, K.J., Dekker, J.W.T., Weijden, T. van der, Pieterse, A.H., Boer, S.M. de, Boersma, L.J., Huinink, D.T., Buijsen, J., Cloos-van Balen, M., Gelderblom, H., Leeuwen-Snoeks, L. van, Lips, I.M., Ramai, S.R.S., Roshani, H., Slingerland, M., Vanneste, B.G.L., Wiltink, L.M., iSHARE Study Grp, Family Medicine, RS: CAPHRI - R6 - Promoting Health & Personalised Care, RS: GROW - R3 - Innovative Cancer Diagnostics & Therapy, and Radiotherapie
- Subjects
Oncology ,medicine.medical_specialty ,MEASUREMENT INSTRUMENTS ,Decision Making ,COMMUNICATION ,Decisional Conflict Scale ,VALIDATION ,Formative assessment ,PERCEIVED EFFICACY ,Internal medicine ,Physicians ,Surveys and Questionnaires ,medicine ,Risk communication ,Humans ,COSMIN ,Hypotheses testing ,Formative ,In patient ,Shared decision-making ,Physician-Patient Relations ,Construct validity ,Questionnaire ,Outcome measures ,CONFLICT SCALE ,General Medicine ,Test-retest agreement ,Clinical Practice ,SYSTEMATIC REVIEWS ,Inter-rater reliability ,PSYCHOMETRIC PROPERTIES ,AGREEMENT ,Patient Participation ,Psychology ,METHODOLOGICAL QUALITY ,Inter-rater agreement - Abstract
Objectives: We have developed two Dutch questionnaires to assess the shared decision-making (SDM) process in oncology; the iSHAREpatient and iSHAREphysician. In this study, we aimed to determine: scores, construct validity, test-retest agreement (iSHAREpatient), and inter-rater (iSHAREpatient-iSHAREphysician) agreement.Methods: Physicians from seven Dutch hospitals recruited cancer patients, and completed the iSHAREphysician and SDM-Questionnaire-physician version. Their patients completed the: iSHAREpatient, nine-item SDM-Questionnaire, Decisional Conflict Scale, Combined Outcome Measure for Risk communication And treatment Decision-making Effectiveness, and five-item Perceived Efficacy in Patient-Physician Interactions. We formulated, respectively, one (iSHAREphysician) and 10 (iSHAREpatient) a priori hypotheses regarding correlations between the iSHARE questionnaires and questionnaires assessing related constructs. To assess test-retest agreement patients completed the iSHAREpatient again 1-2 weeks later.Results: In total, 151 treatment decision-making processes with unique patients were rated. Dimension and total iSHARE scores were high both in patients and physicians. The hypothesis on the iSHAREphysician and 9/10 hypotheses on the iSHAREpatient were confirmed. Test-retest and inter-rater agreement were >.60 for most items.Conclusions: The iSHARE questionnaires show high scores, have good construct validity, substantial test-retest agreement, and moderate inter-rater agreement.Practice implications: Results from the iSHARE questionnaires can inform both physician- and patient-directed efforts to improve SDM in clinical practice. (C) 2021 The Author(s). Published by Elsevier B.V. CC_BY_4.0
- Published
- 2022