Prevalence of sarcopenia components and associated socioeconomic factors among older adults living in rural areas in the state of Ceará, Brazil

Cien Saude Colet. 2023 Nov;28(11):3159-3168. doi: 10.1590/1413-812320232811.17642022. Epub 2023 Mar 12.
[Article in Portuguese, English]

Abstract

The aim is to determine the prevalence of sarcopenia components and associations with socioeconomic variables in older persons living in rural areas in the state of Ceará, Brazil. We conducted a cross-sectional study with 274 older adults. Muscle mass was assessed using muscle mass index (MMI), measured by bioelectrical impedance analysis and calf circumference. Muscle strength (MS) was assessed using the handgrip test. Physical performance was measured using the walk test to calculate gait speed (GS) and the timed up-and-go test. Probable sarcopenia was defined as the presence of low MS, while confirmed sarcopenia was defined as the presence of low MS and low MMI. Severe sarcopenia was defined as the presence of the latter two criteria and slow GS. We tested for associations between sociodemographic characteristics and lifestyle habits and the components of sarcopenia. The logistic regression produced the following results: i) prevalence of low MS was higher among men, individuals aged >69 years, and in those not working at the time of the study; ii) the prevalence of low MMI was higher in individuals aged >69 years, those not living with a spouse, and those with an inadequate level of physical activity; iii) the prevalence of slow GS was higher in individuals aged >69 years, those who had lived in rural areas for less than 30 years, and those not working at the time of the study.

O objetivo é estimar prevalência de componentes da sarcopenia e associações com variáveis socioeconômicas em idosos de população rural do Ceará. Estudo transversal com 274 idosos. Massa muscular foi determinada por Índice de Massa Muscular (IMM) por bioimpedância elétrica e por circunferência da panturrilha; força muscular (FM) por teste de preensão palmar; e desempenho físico por testes da caminhada (VC) e Timed-up-and-go. Provável sarcopenia foi caracterizada por diminuição da FM, sarcopenia quando associada a diminuição do IMM, e sarcopenia grave quando estes dois foram acompanhados de baixa VC. Foram estimadas associações entre condições sociodemográficas, hábitos de vida e componentes da sarcopenia. Na regressão logística, foi observada frequência mais elevada: i) no sexo masculino, idade>69 anos, e nos que não trabalham, entre os idosos com FM diminuída; ii) com idade>69 anos, nos que não moram com o cônjuge, e nos que não praticam atividade física num nível adequado, entre os idosos com IMM diminuído; iii) com idade>69 anos, nos que residem na zona rural há menos que 30 anos, e nos que não trabalham, entre os idosos com VC diminuída.

MeSH terms

  • Aged
  • Aged, 80 and over
  • Brazil / epidemiology
  • Cross-Sectional Studies
  • Geriatric Assessment
  • Hand Strength / physiology
  • Humans
  • Male
  • Muscle Strength / physiology
  • Prevalence
  • Sarcopenia* / epidemiology
  • Socioeconomic Factors