PMID- 33947205 OWN - NLM STAT- MEDLINE DCOM- 20211015 LR - 20220531 IS - 1941-7705 (Electronic) IS - 1941-7713 (Print) IS - 1941-7713 (Linking) VI - 14 IP - 5 DP - 2021 May TI - Establishing Thresholds for Minimal Clinically Important Differences for the Peripheral Artery Disease Questionnaire. PG - e007232 LID - 10.1161/CIRCOUTCOMES.120.007232 [doi] AB - BACKGROUND: Understanding minimum clinically important differences (MCID) in patient-reported outcomes is essential in interpreting the magnitude of changes in these measures. No MCID from patients' perspectives has ever been published for peripheral artery disease-specific health status assessment tools. The Peripheral Artery Questionnaire (PAQ) is a commonly used, validated peripheral artery disease-specific health status instrument for which we sought to prospectively establish its MCID from patients' perspectives. METHODS AND RESULTS: Patients presenting to vascular clinics with new or worsened claudication in the US cohort of the PORTRAIT (Patient-Centered Outcomes Related to Treatment Practices in Peripheral Arterial Disease: Investigating Trajectories) registry who completed baseline and follow-up PAQ assessments along with the Global Assessment of Functioning scale were included. Mean change in PAQ summary scores from 3- to 6-month follow-up was calculated according to Global Assessment of Functioning category. MCID was defined as the mean difference in scores between those with small improvement or deterioration and those with no change. Multivariable linear regression was used to provide an MCID estimate after adjusting for patients' 3-month PAQ score. Of the 483 patients who completed the Global Assessment of Functioning score at 6 months and who had available 3- and 6-month PAQ assessments, the mean age was 69 years, 42% were female, and 71% were White. The MCIDs for PAQ summary scale improvement and worsening were 8.7 (2.9-14.5) and -11.0 (-18.6 to -3.3), respectively. After multivariable adjustment, these were 8.9 (3.0-14.8) and -11.2 (-18.2 to -4.2), respectively. There was no significant interaction between treatment (invasive versus noninvasive) and Global Assessment of Functioning response (P=0.75). CONCLUSIONS: In patients with new or worsened claudication, a 10-point change in PAQ summary score represents an MCID. This estimate needs external validation and may inform the interpretation of PAQ scores when used as outcomes in clinical trials or in routine clinical care. Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT01419080. FAU - Peri-Okonny, Poghni A AU - Peri-Okonny PA AD - Department of Internal Medicine, University of Missouri, Kansas City (P.A.P.-O., D.A., M.B., J.A.S.). AD - Department of Cardiovascular Medicine, Saint Luke's Mid America Heart Institute, Kansas City, MO (P.A.P.-O., J.W., J.G., D.S, Y.T., M.B., J.A.S.). FAU - Wang, Jingyan AU - Wang J AD - Department of Cardiovascular Medicine, Saint Luke's Mid America Heart Institute, Kansas City, MO (P.A.P.-O., J.W., J.G., D.S, Y.T., M.B., J.A.S.). FAU - Gosch, Kensey L AU - Gosch KL FAU - Patel, Manesh R AU - Patel MR AD - Division of Cardiology, Duke University School of Medicine, Durham, NC (M.P.). FAU - Shishehbor, Mehdi H AU - Shishehbor MH AD - Harrington Heart & Vascular Institute and Case Western University School of Medicine, Cleveland, OH (M.H.S.). FAU - Safley, David L AU - Safley DL AD - Department of Internal Medicine, University of Missouri, Kansas City (P.A.P.-O., D.A., M.B., J.A.S.). AD - Department of Cardiovascular Medicine, Saint Luke's Mid America Heart Institute, Kansas City, MO (P.A.P.-O., J.W., J.G., D.S, Y.T., M.B., J.A.S.). FAU - Abbott, J Dawn AU - Abbott JD AD - Division of Cardiology, Department of Medicine, Brown University, Providence, RI (J.D.A., H.D.A.). FAU - Aronow, Herbert D AU - Aronow HD AD - Division of Cardiology, Department of Medicine, Brown University, Providence, RI (J.D.A., H.D.A.). FAU - Mena-Hurtado, Carlos AU - Mena-Hurtado C AD - Vascular Medicine Outcomes (VAMOS) Program, Section of Cardiovascular Medicine, Yale University, New Haven, CT (C.M.-H., Q.-U.-A.J., K.G.S.). FAU - Jelani, Qurat-Ul-Ain AU - Jelani QU AD - Vascular Medicine Outcomes (VAMOS) Program, Section of Cardiovascular Medicine, Yale University, New Haven, CT (C.M.-H., Q.-U.-A.J., K.G.S.). FAU - Tang, Yuanyuan AU - Tang Y AD - Department of Cardiovascular Medicine, Saint Luke's Mid America Heart Institute, Kansas City, MO (P.A.P.-O., J.W., J.G., D.S, Y.T., M.B., J.A.S.). FAU - Bunte, Matthew AU - Bunte M AD - Department of Internal Medicine, University of Missouri, Kansas City (P.A.P.-O., D.A., M.B., J.A.S.). AD - Department of Cardiovascular Medicine, Saint Luke's Mid America Heart Institute, Kansas City, MO (P.A.P.-O., J.W., J.G., D.S, Y.T., M.B., J.A.S.). FAU - Labrosciano, Clementine AU - Labrosciano C AD - Department of Medicine, Queen Elisabeth Hospital, Adelaide, Australia (C.L., J.F.B.). FAU - Beltrame, John F AU - Beltrame JF AD - Department of Medicine, Queen Elisabeth Hospital, Adelaide, Australia (C.L., J.F.B.). FAU - Spertus, John A AU - Spertus JA AD - Department of Internal Medicine, University of Missouri, Kansas City (P.A.P.-O., D.A., M.B., J.A.S.). AD - Department of Cardiovascular Medicine, Saint Luke's Mid America Heart Institute, Kansas City, MO (P.A.P.-O., J.W., J.G., D.S, Y.T., M.B., J.A.S.). FAU - Smolderen, Kim G AU - Smolderen KG AD - Vascular Medicine Outcomes (VAMOS) Program, Section of Cardiovascular Medicine, Yale University, New Haven, CT (C.M.-H., Q.-U.-A.J., K.G.S.). LA - eng SI - ClinicalTrials.gov/NCT01419080 GR - T32 HL110837/HL/NHLBI NIH HHS/United States GR - UL1 TR001863/TR/NCATS NIH HHS/United States PT - Clinical Trial PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20210505 PL - United States TA - Circ Cardiovasc Qual Outcomes JT - Circulation. Cardiovascular quality and outcomes JID - 101489148 SB - IM MH - Aged MH - Female MH - Humans MH - Intermittent Claudication/diagnosis/therapy MH - Minimal Clinically Important Difference MH - *Peripheral Arterial Disease/diagnosis/therapy MH - Quality of Life MH - Surveys and Questionnaires PMC - PMC8254614 MID - NIHMS1715509 OTO - NOTNLM OT - health status OT - minimal clinically important difference OT - patients OT - quality of life OT - registries EDAT- 2021/05/06 06:00 MHDA- 2021/10/16 06:00 PMCR- 2022/05/05 CRDT- 2021/05/05 05:30 PHST- 2021/05/06 06:00 [pubmed] PHST- 2021/10/16 06:00 [medline] PHST- 2021/05/05 05:30 [entrez] PHST- 2022/05/05 00:00 [pmc-release] AID - 10.1161/CIRCOUTCOMES.120.007232 [doi] PST - ppublish SO - Circ Cardiovasc Qual Outcomes. 2021 May;14(5):e007232. doi: 10.1161/CIRCOUTCOMES.120.007232. Epub 2021 May 5.