Associations between levels of physical activity and mortality in older adults: a prospective cohort study

Gomes, Igor C. and de Oliveira Tavares, Vagner D. and de Oliveira Neto, Leônidas and de Moraes Dutra Agrícola, Pedro and Jenkins, Matthew and Smith, Lee and de Oliveira Duarte, Yeda A. (2022) Associations between levels of physical activity and mortality in older adults: a prospective cohort study. Sport Sciences for Health. ISSN 1825-1234

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Official URL: https://doi.org/10.1007/s11332-021-00891-z

Abstract

Background- Research using objectively measured physical activity (PA) in older adults to assess relationship between PA levels and mortality is scarce. Objective- To investigate associations between level of physical activity and mortality in older adults over a 4-year period. Methods- The population-based cohort study was carried out including 554 older participants (mean age: 76.2 ± 8.05 years) using data from the SABE study (Health, well-being and aging). Levels of physical activity were measured using accelerometers and participants were divided into tertiles and then categorized into two groups: (I) low level of physical activity and (II) intermediate/high level of physical activity. The dependent variable was mortality between 2010 and 2014. Control variables included socio-demographic and clinical factors. Multiple regression analysis was used from a hierarchical model, grouping the variables into two blocks ordered according to the magnitude of their effect. Results- Our results showed that mortality rate in participants with low level of physical activity was 20/1000 person/year and for those with intermediate/high levels of physical activity was 14/1000 person/year. In the adjusted model, by sociodemographic and clinical variables, those with low levels of physical activity presented a higher risk for mortality (OR = 2.79, 95%CI = 1.71–4.57) when compared to individuals with intermediate/high levels of physical activity. Conclusion- Older adults with low levels of physical activity have a higher chance of mortality as compared to those with intermediate/high levels of physical activity, regardless of sociodemographic and clinical variables.

Item Type: Journal Article
Keywords: Physical activity, Mortality, Older adults, Longitudinal study
Faculty: Faculty of Science & Engineering
SWORD Depositor: Symplectic User
Depositing User: Symplectic User
Date Deposited: 04 Jan 2022 10:03
Last Modified: 16 Mar 2022 16:21
URI: https://arro.anglia.ac.uk/id/eprint/707222

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