PMID- 30515599 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 2509-8020 (Electronic) IS - 2509-8020 (Linking) VI - 2 IP - 1 DP - 2018 Dec 4 TI - Application of a Bayesian graded response model to characterize areas of disagreement between clinician and patient grading of symptomatic adverse events. PG - 56 LID - 10.1186/s41687-018-0086-x [doi] LID - 56 AB - BACKGROUND: Traditional concordance metrics have shortcomings based on dataset characteristics (e.g., multiple attributes rated, missing data); therefore it is necessary to explore supplemental approaches to quantifying agreement between independent assessments. The purpose of this methodological paper is to apply an Item Response Theory (IRT) -based framework to an existing dataset that included unidimensional clinician and multiple attribute patient ratings of symptomatic adverse events (AEs), and explore the utility of this method in patient-reported outcome (PRO) and health-related quality of life (HRQOL) research. METHODS: Data were derived from a National Cancer Institute-sponsored study examining the validity of a measurement system (PRO-CTCAE) for patient self-reporting of AEs in cancer patients receiving treatment (N = 940). AEs included 13 multiple attribute patient-reported symptoms that had corresponding unidimensional clinician AE grades. A Bayesian IRT Model was fitted to calculate the latent grading thresholds between raters. The posterior mean values of the model-fitted item responses were calculated to represent model-based AE grades obtained from patients and clinicians. RESULTS: Model-based AE grades showed a general pattern of clinician underestimation relative to patient-graded AEs. However, the magnitude of clinician underestimation was associated with AE severity, such that clinicians' underestimation was more pronounced for moderate/very severe model-estimated AEs, and less so with mild AEs. CONCLUSIONS: The Bayesian IRT approach reconciles multiple symptom attributes and elaborates on the patterns of clinician-patient non-concordance beyond that provided by traditional metrics. This IRT-based technique may be used as a supplemental tool to detect and characterize nuanced differences in patient-, clinician-, and proxy-based ratings of HRQOL and patient-centered outcomes. TRIAL REGISTRATION: ClinicalTrials.gov NCT01031641 . Registered 1 December 2009. FAU - Atkinson, Thomas M AU - Atkinson TM AUID- ORCID: 0000-0002-4965-3913 AD - Department of Psychiatry & Behavioral Sciences, Memorial Sloan Kettering Cancer Center, 641 Lexington Ave., 7th Floor, New York, NY, 10022, USA. atkinsot@mskcc.org. FAU - Reeve, Bryce B AU - Reeve BB AD - Duke University Medical Center, Durham, NC, USA. FAU - Dueck, Amylou C AU - Dueck AC AD - Mayo Clinic, Scottsdale, AZ, USA. FAU - Bennett, Antonia V AU - Bennett AV AD - University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. FAU - Mendoza, Tito R AU - Mendoza TR AD - University of Texas M.D. Anderson Cancer Center, Houston, TX, USA. FAU - Rogak, Lauren J AU - Rogak LJ AD - Department of Psychiatry & Behavioral Sciences, Memorial Sloan Kettering Cancer Center, 641 Lexington Ave., 7th Floor, New York, NY, 10022, USA. FAU - Basch, Ethan AU - Basch E AD - Department of Psychiatry & Behavioral Sciences, Memorial Sloan Kettering Cancer Center, 641 Lexington Ave., 7th Floor, New York, NY, 10022, USA. AD - University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. FAU - Li, Yuelin AU - Li Y AD - Department of Psychiatry & Behavioral Sciences, Memorial Sloan Kettering Cancer Center, 641 Lexington Ave., 7th Floor, New York, NY, 10022, USA. LA - eng SI - ClinicalTrials.gov/NCT01031641 GR - P30 CA8748-50/National Institutes of Health/ GR - P30 CA008748/CA/NCI NIH HHS/United States GR - HHSN261200800043C/CA/NCI NIH HHS/United States GR - HHSN261201000063C/CA/NCI NIH HHS/United States GR - HHSN261200800001E/National Cancer Institute/ GR - HHSN261201000063C/National Cancer Institute/ GR - HHSN261200800001C/RC/CCR NIH HHS/United States GR - HHSN261200800043C/National Cancer Institute/ GR - HHSN261200800001E/CA/NCI NIH HHS/United States PT - Journal Article DEP - 20181204 PL - Germany TA - J Patient Rep Outcomes JT - Journal of patient-reported outcomes JID - 101722688 PMC - PMC6279753 OTO - NOTNLM OT - Clinician-patient agreement OT - Item response theory OT - Neoplasms OT - Patient-reported outcomes COIS- ETHICS APPROVAL AND CONSENT TO PARTICIPATE: The study was approved by the institutional review boards at the National Cancer Institute and all participating sites. All study participants provided written informed consent. CONSENT FOR PUBLICATION: Not applicable. COMPETING INTERESTS: The authors declare that they have no competing interests. PUBLISHER'S NOTE: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. EDAT- 2018/12/06 06:00 MHDA- 2018/12/06 06:01 PMCR- 2018/12/04 CRDT- 2018/12/06 06:00 PHST- 2018/03/23 00:00 [received] PHST- 2018/11/18 00:00 [accepted] PHST- 2018/12/06 06:00 [entrez] PHST- 2018/12/06 06:00 [pubmed] PHST- 2018/12/06 06:01 [medline] PHST- 2018/12/04 00:00 [pmc-release] AID - 10.1186/s41687-018-0086-x [pii] AID - 86 [pii] AID - 10.1186/s41687-018-0086-x [doi] PST - epublish SO - J Patient Rep Outcomes. 2018 Dec 4;2(1):56. doi: 10.1186/s41687-018-0086-x.