PMID- 37760964 OWN - NLM STAT- Publisher LR - 20231003 IS - 2227-9059 (Print) IS - 2227-9059 (Electronic) IS - 2227-9059 (Linking) VI - 11 IP - 9 DP - 2023 Sep 13 TI - Minimal Clinically Important Differences in EQ-5D-5L Index and VAS after a Respiratory Muscle Training Program in Individuals Experiencing Long-Term Post-COVID-19 Symptoms. LID - 10.3390/biomedicines11092522 [doi] LID - 2522 AB - The primary aim of this study was to determine the minimal clinically important difference (MCID) for the EuroQol-5D questionnaire (EQ-5D-5L) index and visual analogic scale (VAS) in individuals experiencing long-term post-COVID-19 symptoms. In addition, it was pretended to determine which variable discriminates better and to compare changes between individuals classified by the MCID. DESIGN: Secondary analysis of a randomized controlled trial involving 42 individuals who underwent an 8-week intervention in a respiratory muscle training program. RESULTS: A change of at least 0.262 and 7.5 for the EQ-5D-5L index and VAS represented the MCID, respectively. Only the EQ-5D-5L VAS showed acceptable discrimination between individuals who were classified as "improved" and those classified as "stable/not improved" (area under the curve = 0.78), although with a low Youden index (Youden index, 0.39; sensitivity, 46.2%; specificity, 93.1%). Those individuals who exceeded the established MCID for EQ-5D-5L VAS had significantly greater improvements in inspiratory muscle function, exercise tolerance, and peripheral muscle strength compared to participants classified as "stable/not improved". CONCLUSIONS: Only the EQ-5D-5L VAS, especially when MCID was exceeded, showed an acceptable discriminative ability to evaluate the efficacy of an intervention in individuals with long-term post-COVID-19 symptoms. FAU - Del Corral, Tamara AU - Del Corral T AUID- ORCID: 0000-0002-3144-5411 AD - Department of Radiology, Rehabilitation and Physiotherapy, Faculty of Nursing, Physiotherapy and Podiatry, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain. AD - Instituto de Investigacion Sanitaria del Hospital Clinico San Carlos (IdISSC), 28040 Madrid, Spain. FAU - Fabero-Garrido, Raul AU - Fabero-Garrido R AUID- ORCID: 0000-0002-6565-4967 AD - Department of Radiology, Rehabilitation and Physiotherapy, Faculty of Nursing, Physiotherapy and Podiatry, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain. FAU - Plaza-Manzano, Gustavo AU - Plaza-Manzano G AUID- ORCID: 0000-0003-1596-5027 AD - Department of Radiology, Rehabilitation and Physiotherapy, Faculty of Nursing, Physiotherapy and Podiatry, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain. AD - Instituto de Investigacion Sanitaria del Hospital Clinico San Carlos (IdISSC), 28040 Madrid, Spain. FAU - Navarro-Santana, Marcos Jose AU - Navarro-Santana MJ AUID- ORCID: 0000-0002-6065-9283 AD - Department of Radiology, Rehabilitation and Physiotherapy, Faculty of Nursing, Physiotherapy and Podiatry, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain. FAU - Fernandez-de-Las-Penas, Cesar AU - Fernandez-de-Las-Penas C AUID- ORCID: 0000-0003-3772-9690 AD - Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, 28922 Alcorcon, Spain. FAU - Lopez-de-Uralde-Villanueva, Ibai AU - Lopez-de-Uralde-Villanueva I AUID- ORCID: 0000-0001-7474-5257 AD - Department of Radiology, Rehabilitation and Physiotherapy, Faculty of Nursing, Physiotherapy and Podiatry, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain. AD - Instituto de Investigacion Sanitaria del Hospital Clinico San Carlos (IdISSC), 28040 Madrid, Spain. LA - eng GR - IP.A.I. Covid-19 2020/03/Colegio Profesional de Fisioterapeutas de Madrid/ PT - Journal Article DEP - 20230913 PL - Switzerland TA - Biomedicines JT - Biomedicines JID - 101691304 PMC - PMC10526144 OTO - NOTNLM OT - SARS-CoV-2 OT - euroqol-5D-5L OT - health-related quality of life OT - minimal clinically important difference OT - responsiveness COIS- The authors declare no conflict of interest. EDAT- 2023/09/28 06:42 MHDA- 2023/09/28 06:42 PMCR- 2023/09/13 CRDT- 2023/09/28 01:09 PHST- 2023/07/23 00:00 [received] PHST- 2023/08/21 00:00 [revised] PHST- 2023/09/11 00:00 [accepted] PHST- 2023/09/28 06:42 [medline] PHST- 2023/09/28 06:42 [pubmed] PHST- 2023/09/28 01:09 [entrez] PHST- 2023/09/13 00:00 [pmc-release] AID - biomedicines11092522 [pii] AID - biomedicines-11-02522 [pii] AID - 10.3390/biomedicines11092522 [doi] PST - epublish SO - Biomedicines. 2023 Sep 13;11(9):2522. doi: 10.3390/biomedicines11092522.