Cognition, physical function, and life purpose in the rural elderly population: A systematic review protocol

PLoS One. 2024 Jun 11;19(6):e0291699. doi: 10.1371/journal.pone.0291699. eCollection 2024.

Abstract

Introduction: Aging in rural settings worldwide, from the perspective of cognition, physical function, and life purpose essential constructs for a prosperous old age, still needs comprehensive discussion. This systematic review protocol aims to highlight the prevalence of cognitive decline, physical functioning, and life purpose in older adults aging in rural community settings.

Methods and analysis: We will include cross-sectional studies published until April 2023 found in 8 databases: Embase, MEDLINE, LILACS, PsycINFO, Scopus, SciELO, and Web of Science. Ryyan software will be used for the first selection, and the Observational Study Quality Evaluation (OSQE) will assess methodological quality and risk of bias. Primary analysis will involve titles and abstracts using MeSH descriptors such as "Physical functioning," "Cognition," "Cognitive function," "Life purpose," "Elderly," "Older," "Rural aging," "Rural population," "Communities, rural," "Distribution, rural spatial," "Medium communities," "Rural settlement," "Small community." If necessary, secondary analysis will include a complete reading of selected articles by two blinded reviewers, confirmed by a third person. Publication bias will be assessed using cross-sectional analytical study quality. Sensitivity analyses will identify manuscripts significantly influencing combined prevalence of endpoints.

MeSH terms

  • Aged
  • Aged, 80 and over
  • Aging / physiology
  • Cognition* / physiology
  • Cognitive Dysfunction / epidemiology
  • Cross-Sectional Studies
  • Humans
  • Rural Population* / statistics & numerical data
  • Systematic Reviews as Topic*

Grants and funding

Fundação de Amparo à Pesquisa do Estado do Amazonas, EDITAL N. 012/2021 – POSGFE Ms Hércules Lázaro Morais Campos anf Research scholarship from the Amazonas State Research Support Foundation - Brazil (FAPEAM). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.