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Núñez-Cortés R, Malhue-Vidal C, Gath F, Valdivia-Lobos G, Torres-Castro R, Cruz-Montecinos C, Martinez-Arnau FM, Pérez-Alenda S, López-Bueno R, Calatayud J. The Impact of Charlson Comorbidity Index on the Functional Capacity of COVID-19 Survivors: A Prospective Cohort Study with One-Year Follow-Up. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19127473. [PMID: 35742722 PMCID: PMC9223623 DOI: 10.3390/ijerph19127473] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/16/2022] [Accepted: 06/16/2022] [Indexed: 02/04/2023]
Abstract
Objective: To determine the association between the Charlson comorbidity index (CCI) score after discharge with 6-min walk test (6MWT) 1 year after discharge in a cohort of COVID-19 survivors. Methods: In this prospective study, data were collected from a consecutive sample of patients hospitalized for COVID-19. The CCI score was calculated from the comorbidity data. The main outcome was the distance walked in the 6MWT at 1 year after discharge. Associations between CCI and meters covered in the 6MWT were assessed through crude and adjusted linear regressions. The model was adjusted for possible confounding factors (sex, days of hospitalization, and basal physical capacity through sit-to-stand test one month after discharge). Results: A total of 41 patients were included (mean age 58.8 ± 12.7 years, 20/21 men/women). A significant association was observed between CCI and 6MWT (meters): (i) crude model: β = −18.7, 95% CI = −34.7 to −2.6, p < 0.05; (ii) model adjusted for propensity score including sex, days of hospitalization, and sit-to-stand: β = −23.0, 95% CI = −39.1 to −6.8, p < 0.05. Conclusions: A higher CCI score after discharge indicates worse performance on the 6MWT at 1-year follow-up in COVID-19 survivors. The CCI score could also be used as a screening tool to make important clinical decisions.
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Affiliation(s)
- Rodrigo Núñez-Cortés
- Physiotherapy in Motion Multispeciality Research Group (PTinMOTION), Department of Physiotherapy, University of Valencia, 46010 Valencia, Spain; (R.N.-C.); (C.C.-M.); (F.M.M.-A.); (S.P.-A.)
- Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago 8380286, Chile;
- Service of Physical Therapy, Hospital Clínico La Florida, Santiago 8240000, Chile; (C.M.-V.); (F.G.); (G.V.-L.)
| | - Constanza Malhue-Vidal
- Service of Physical Therapy, Hospital Clínico La Florida, Santiago 8240000, Chile; (C.M.-V.); (F.G.); (G.V.-L.)
| | - Florencia Gath
- Service of Physical Therapy, Hospital Clínico La Florida, Santiago 8240000, Chile; (C.M.-V.); (F.G.); (G.V.-L.)
| | - Gonzalo Valdivia-Lobos
- Service of Physical Therapy, Hospital Clínico La Florida, Santiago 8240000, Chile; (C.M.-V.); (F.G.); (G.V.-L.)
| | - Rodrigo Torres-Castro
- Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago 8380286, Chile;
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Carlos Cruz-Montecinos
- Physiotherapy in Motion Multispeciality Research Group (PTinMOTION), Department of Physiotherapy, University of Valencia, 46010 Valencia, Spain; (R.N.-C.); (C.C.-M.); (F.M.M.-A.); (S.P.-A.)
- Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago 8380286, Chile;
- Section of Research, Innovation and Development in Kinesiology, Kinesiology Unit, San José Hospital, Santiago 8380286, Chile
| | - Francisco M. Martinez-Arnau
- Physiotherapy in Motion Multispeciality Research Group (PTinMOTION), Department of Physiotherapy, University of Valencia, 46010 Valencia, Spain; (R.N.-C.); (C.C.-M.); (F.M.M.-A.); (S.P.-A.)
| | - Sofía Pérez-Alenda
- Physiotherapy in Motion Multispeciality Research Group (PTinMOTION), Department of Physiotherapy, University of Valencia, 46010 Valencia, Spain; (R.N.-C.); (C.C.-M.); (F.M.M.-A.); (S.P.-A.)
| | - Rubén López-Bueno
- Department of Physical Medicine and Nursing, University of Zaragoza, 50009 Zaragoza, Spain
- National Research Centre for the Working Environment, 2100 Copenhagen, Denmark;
- Correspondence:
| | - Joaquín Calatayud
- National Research Centre for the Working Environment, 2100 Copenhagen, Denmark;
- Exercise Intervention for Health Research Group (EXINH-RG), Department of Physiotherapy, University of Valencia, 46010 Valencia, Spain
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