PMID- 32449602 OWN - NLM STAT- MEDLINE DCOM- 20211008 LR - 20211008 IS - 1749-4486 (Electronic) IS - 1749-4478 (Linking) VI - 45 IP - 5 DP - 2020 Sep TI - Characterising the potential for recall bias in anchor-based MCID calculation of patient-reported outcome measures for chronic rhinosinusitis. PG - 768-774 LID - 10.1111/coa.13589 [doi] AB - OBJECTIVE: Anchor-based methods to calculate the minimal clinically important difference (MCID) of a patient-reported outcome measure (PROM) may suffer from recall bias. This has never been investigated for otolaryngic PROMs. We sought to identify evidence of recall bias in calculation of MCIDs of PROMs for patients with chronic rhinosinusitis (CRS). DESIGN: Retrospective analysis of data from two previous studies calculating the MCID of the 22-item Sinonasal Outcome Test (SNOT-22) and 5-dimensonal EuroQol questionnaire (EQ-5D) in CRS patients. SETTING: Tertiary rhinology clinic. PARTICIPANTS: Adults with CRS. MAIN OUTCOME MEASURES: SNOT-22 score, and EQ-5D visual analog scale scores (EQ-5D VAS) and health utility values (EQ-5D HUV) before and after medical treatment for CRS. After treatment, participants were asked to rate the change in sinonasal symptoms and general health (the anchor question) as "Much worse," "A little worse," "About the same," "A little better" or "Much better." Participants' responses to the anchor question were checked for association with post-treatment and pre-treatment scores using ordinal regression. RESULTS: On univariate association, post-treatment SNOT-22 and EQ-5D scores were associated with respective participants' anchor question responses (P < .001 in all cases). Only pre-treatment SNOT-22 score was associated with anchor question responses (P = .017) on univariate association, in contrast to pre-treatment EQ-5D scores. Pre-treatment EQ-5D scores only associated with anchor question responses when controlling for post-treatment scores. CONCLUSION: The anchor-based MCIDs of the SNOT-22, which reflects disease-specific QOL, and the EQ-5D, which reflects general health-related QOL, appear to be largely free of recall bias. CI - (c) 2020 John Wiley & Sons Ltd. FAU - McCann, Adam C AU - McCann AC AD - Department of Otolaryngology - Head & Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA. FAU - Phillips, Katie M AU - Phillips KM AD - Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, CA, USA. FAU - Trope, Michal AU - Trope M AD - Department of Otolaryngology - Head & Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA. FAU - Caradonna, David S AU - Caradonna DS AD - Harvard Medical School, Boston, MA, USA. AD - Division of Otolaryngology, Beth Israel Deaconess Medical Center, Boston, MA, USA. FAU - Gray, Stacey T AU - Gray ST AD - Harvard Medical School, Boston, MA, USA. AD - Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, MA, USA. FAU - Sedaghat, Ahmad R AU - Sedaghat AR AUID- ORCID: 0000-0001-6331-2325 AD - Department of Otolaryngology - Head & Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA. LA - eng PT - Journal Article DEP - 20200614 PL - England TA - Clin Otolaryngol JT - Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery JID - 101247023 SB - IM MH - Chronic Disease MH - Female MH - Follow-Up Studies MH - Humans MH - Male MH - Middle Aged MH - *Minimal Clinically Important Difference MH - *Patient Reported Outcome Measures MH - Retrospective Studies MH - Rhinitis/complications/*diagnosis MH - Sinusitis/complications/*diagnosis MH - Surveys and Questionnaires OTO - NOTNLM OT - MCID OT - anchor-based OT - chronic rhinosinusitis OT - limitations OT - minimal clinically important difference OT - recall bias EDAT- 2020/05/26 06:00 MHDA- 2021/10/09 06:00 CRDT- 2020/05/26 06:00 PHST- 2020/04/04 00:00 [received] PHST- 2020/05/03 00:00 [revised] PHST- 2020/05/17 00:00 [accepted] PHST- 2020/05/26 06:00 [pubmed] PHST- 2021/10/09 06:00 [medline] PHST- 2020/05/26 06:00 [entrez] AID - 10.1111/coa.13589 [doi] PST - ppublish SO - Clin Otolaryngol. 2020 Sep;45(5):768-774. doi: 10.1111/coa.13589. Epub 2020 Jun 14.