PMID- 30455158 OWN - NLM STAT- MEDLINE DCOM- 20200504 LR - 20220129 IS - 1873-5126 (Electronic) IS - 1353-8020 (Linking) VI - 61 DP - 2019 Apr TI - The minimum clinically important difference (MCID) for a falls intervention in Parkinson's: A delphi study. PG - 106-110 LID - S1353-8020(18)30489-9 [pii] LID - 10.1016/j.parkreldis.2018.11.008 [doi] AB - BACKGROUND: Falls are common in Parkinson's disease so any intervention that reduced falls risk would be of value. One potential intervention is the use of cholinesterase inhibitor (ChEi) drugs. OBJECTIVE: To establish the minimum clinically important difference (MCID) for fall rates to inform the effect estimate for sample size calculations of future clinical trials. METHODS: We performed a Delphi study assembling a panel of experts in Parkinson's disease from academic and clinical medicine in order to reach a consensus of opinion. Responses from a panel were summarised and resent to the group, until consensus was reached. RESULTS: 780 clinicians, who had been caring for people with Parkinson's for an average of 14 years, were contacted via three routes. The median (Interquartile range (IQR)) MCID after round 1 was 25% (IQR 20-30%) which equates to the prevention of 5 (IQR 4-6) falls per year. Increasing consensus after round two confirmed the MCID of 25%, narrowing the (IQ) range to 20%-25%. This was unchanged when the panel were shown the number of participants that would need to be recruited to a clinical trial in order to achieve this difference. CONCLUSIONS: We have established that an expert panel of PD specialists consider that an intervention that demonstrated a 25% (IQR 20-25%) relative reduction in falls rate would be clinically meaningful. This estimate can be used to help determine the sample size for any future clinical trial. CI - Copyright (c) 2018. Published by Elsevier Ltd. FAU - Henderson, Emily J AU - Henderson EJ AD - Department of Population Health Sciences, Bristol Medical School, University of Bristol, 39 Whatley Road, Bristol, BS8 2PS, United Kingdom; Royal United Hospitals NHS Foundation Trust Bath, BA1 3NG, United Kingdom. Electronic address: Emily.henderson@bristol.ac.uk. FAU - Morgan, Gemma S AU - Morgan GS AD - Department of Population Health Sciences, Bristol Medical School, University of Bristol, 39 Whatley Road, Bristol, BS8 2PS, United Kingdom. FAU - Amin, Jigisha AU - Amin J AD - Faculty of Health Sciences, Bristol Medical School, University of Bristol, Bristol, BS8 2PS, United Kingdom. FAU - Gaunt, Daisy M AU - Gaunt DM AD - Bristol Randomised Trials Collaboration (BRTC), Department of Population Health Sciences, Bristol Medical School, University of Bristol, 39 Whatley Road, Bristol, BS8 2PS, United Kingdom. FAU - Ben-Shlomo, Yoav AU - Ben-Shlomo Y AD - Department of Population Health Sciences, Bristol Medical School, University of Bristol, 39 Whatley Road, Bristol, BS8 2PS, United Kingdom. LA - eng GR - F-1003/PUK_/Parkinson's UK/United Kingdom GR - J-0901/PUK_/Parkinson's UK/United Kingdom PT - Journal Article DEP - 20181108 PL - England TA - Parkinsonism Relat Disord JT - Parkinsonism & related disorders JID - 9513583 RN - 0 (Cholinesterase Inhibitors) SB - IM MH - Accidental Falls/*prevention & control MH - Cholinesterase Inhibitors/therapeutic use MH - Delphi Technique MH - Geriatricians MH - Humans MH - *Minimal Clinically Important Difference MH - Neurologists MH - Parkinson Disease/*rehabilitation OTO - NOTNLM OT - Cholinesterase inhibitors OT - Delphi technique OT - Falls OT - Parkinson disease OT - Sample size EDAT- 2018/11/21 06:00 MHDA- 2020/05/06 06:00 CRDT- 2018/11/21 06:00 PHST- 2018/08/14 00:00 [received] PHST- 2018/10/19 00:00 [revised] PHST- 2018/11/05 00:00 [accepted] PHST- 2018/11/21 06:00 [pubmed] PHST- 2020/05/06 06:00 [medline] PHST- 2018/11/21 06:00 [entrez] AID - S1353-8020(18)30489-9 [pii] AID - 10.1016/j.parkreldis.2018.11.008 [doi] PST - ppublish SO - Parkinsonism Relat Disord. 2019 Apr;61:106-110. doi: 10.1016/j.parkreldis.2018.11.008. Epub 2018 Nov 8.