Prevalência e fatores associados às limitações funcionais na mobilidade de idosos cadastrados na Estratégia de Saúde da Família do Município de Uberaba, MG

Abstract

Objective: To identify the prevalence of functional limitations in mobility and the association with sociodemographic variables, variables of health, functional and behavioral aspects in the elderly and estimate cutoff points of time sitting for functional limitations in mobility of lower limbs. Methodology: it was held a populationbased study with a cross-sectional design, with a sample of 621 individuals representing the population of 10,683 elderly (≥ 60 years) registered in 35 Family Health Teams in the urban area of Uberaba, MG. The data collection was performed by means of a questionnaire and physical performance tests. The procedures used descriptive statistics (frequency, mean and standard deviation) and inferential analysis with the use of Poisson Regression in the identification of factors associated with functional limitations in mobility of the lower limbs, with estimates of prevalence ratios. Were estimated cut-off points of time sitting during the week and weekend as a discriminator of reduced mobility by means of Receiver Operating Characteristic (ROC) for men and women. For all analyzes were considered the significance level p≤0.05 and confidence interval (CI) of 95%. Results: Among the elderly included 20.0% had functional limitations in mobility of the lower limbs. After multivariate analysis was observed association of reduced mobility with increasing age, the condition of widowhood, lower economic class, hospitalization in the last six months, negative perception of sleep, dependence on basic and instrumental activities of daily living, increase in time sitting during the weekend, and physical inactivity. The cut-off points for reduced mobility were: > 590 minutes/day during a working day of the week (sensitivity 87.9 and specificity 57.6) and > 730 minutes/day in a day of the weekend (sensitivity 45.5 and specificity 79.9) for males and > 580 minutes/day (sensitivity 67 and specificity 69.6) during a working day of the week and > 690 minutes/day (sensitivity 47.3 and specificity 82.1) for one day of the weekend for the female sex. Conclusion: The elderly have a high prevalence of functional limitations presenting reduced mobility.