Association between cardiorespiratory fitness and mortality risk in the chilean population

e202503015

Authors

  • Jaime Vásquez-Gómez Centro de Investigación de Estudios Avanzados del Maule (CIEAM); Universidad Católica del Maule. Talca. Chile. / Laboratorio de Rendimiento Humano; Universidad Católica del Maule. Talca. Chile. https://orcid.org/0000-0003-0597-793X
  • Yeny Concha-Cisternas Escuela de Kinesiología; Facultad de Salud; Universidad Santo Tomás. Talca. Chile. / Pedagogía en Educación Física; Facultad de Educación; Universidad Autónoma de Chile. Talca. Chile. https://orcid.org/0000-0001-7013-3894
  • Solange Parra-Soto Departamento de Nutrición y Salud Pública; Facultad de Ciencias de la Salud y de los Alimentos; Universidad del Bío-Bío. Chillán. Chile. https://orcid.org/0000-0002-8443-7327
  • Daniel Reyes-Molina Escuela de Kinesiología; Facultad de Salud; Universidad Santo Tomás. Los Ángeles. Chile. / Doctorado en Psicología; Facultad de Ciencias Sociales; Universidad de Concepción. Concepción. Chile. https://orcid.org/0000-0003-0068-2438
  • Felipe Díaz-Toro Department of Epidemiology; Mailman School of Public Health; Columbia University. Nueva York. Estados Unidos. / Facultad de Enfermería; Universidad Andrés Bello. Santiago. Chile. https://orcid.org/0000-0002-7955-8183
  • Fanny Petermann-Rocha School of Cardiovascular and Metabolic Health; University of Glasgow. Glasgow. Reino Unido. / Centro de Investigación Biomédica; Facultad de Medicina; Universidad Diego Portales. Santiago. Chile. https://orcid.org/0000-0002-4384-4962
  • Carlos Celis-Morales Laboratorio de Rendimiento Humano; Universidad Católica del Maule. Talca. Chile. / High-Altitude Medicine Research Centre (CEIMA); Universidad Arturo Prat. Iquique. Chile. https://orcid.org/0000-0003-2612-3917

Keywords:

Cardiorespiratory Fitness, Mortality, Health Surveys, Adult, Epidemiology

Abstract

Background: The aim was to evaluate the relationship between equation-estimated cardiorespiratory fitness and all-cause mortality in the Chilean population of both genders according to data from the 2009-2010 National Health Survey (NHS).

Methods: Data from 4.749 participants from the 2009-2010 NHS were analysed after 10.9 years of follow-up. Fitness was estimated with the Myers et al. equation and classified into quintiles. All-cause mortality records were obtained from the Chilean Civil Registry and Identification until 2020. Cox regression models adjusted for confounding variables (demographics, nutritional status, lifestyle and comorbidities) were used to assess the association between fitness and mortality.

Results: During the 10.9 years (IQR: 10.8; 11.4) of follow-up 506 (10.6%) people died. Compared to the lowest fitness quintile (<7 METs) those classified in the highest quintile (>12 METs) had a 95% lower risk of mortality (HR: 0.05; 95% CI: 0.03, 0.09) and the risk of mortality was 28% lower for every 1-METs increase in fitness (HR: 0.72 95% CI: 0.69, 0.75). All these associations were independent of confounders.

Conclusions: Fitness has a strong association with all-cause mortality in the Chilean population, i.e. the reduction in risk of death varies between 28% and 95% with increasing and reaching a higher level of fitness, respectively.

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Published

2025-03-20 — Updated on 2025-03-20

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How to Cite

1.
Vásquez-Gómez J, Concha-Cisternas Y, Parra-Soto S, Reyes-Molina D, Díaz-Toro F, Petermann-Rocha F, et al. Association between cardiorespiratory fitness and mortality risk in the chilean population: e202503015. Rev Esp Salud Pública [Internet]. 2025 Mar. 20 [cited 2026 Apr. 1];99(1):12 páginas. Available from: https://ojs.sanidad.gob.es/index.php/resp/article/view/476