Dados do Trabalho

Título

ASSOCIATION BETWEEN SLEEP AND INTRINSIC CAPACITY IN OLDER ADULTS IN PETROLINA

Introdução

Intrinsic capacity (IC), defined as the combination of an individual's physical and mental capacities, has been recognized as a valuable predictor of adverse health outcomes in the elderly population. Although the association between sleep quality and outcomes such as quality of life, cognitive function and mortality is well defined in the literature, its relationship with IC remains uncertain.

Objetivo

The objective of this study was to investigate the association between sleep quality and intrinsic capacity in older adults.

Métodos

This cross-sectional study utilized data from the FREVO (Risk Factors for Aging) cohort, which prospectively assessed elderly people in Petrolina, Brazil. The sample comprised 246 elderly participants (77% women; mean age 70.3±6.6 years; mean BMI 26.9±4.76 kg/m2; 23% with more than 12 years of education). Sleep quality was assessed using the Pittsburgh Sleep Quality Index (0-21 points). The six domains of IC (cognition, locomotion, vitality, vision, hearing and psychological state) was individually assessed using the Montreal Cognitive Assessment (0-30 points), Short Physical Performance Battery (0-12 points), Mini Nutritional Assessment (0-14 points), Snellen Chart (0-10 points), Whisper Test (0-8 points), and Geriatric Depression Scale (0-15 points). For the final IC score, the six domains were dichotomized, with a total score ranging from 0-6 points. Descriptive statistics and a multiple regression analysis adjusted for sex, age, BMI and education level were performed using Jamovi software version 2.5.6.0.

Resultados

The mean sleep score was 5.6±3.5 and the mean IC score was 3.4±1. The mean scores for the IC domains were 19.3±5.3 for cognition, 9.9 ± 1.8 for locomotion, 12.1±1.8 for vitality, 5.4±2.7 for vision, 5.3±2.5 for hearing and 3.0±2.5 for psychological state. The statistically significant models showed that sleep quality (r=0.25; p<0.001) and age (r=0.25; p<0.001) had weak positive correlation with IC.

Conclusões

The results indicated that elderly people with poorer sleep quality and older age had worse IC.

Palavras -chave

Aging; Intrinsic capacity; Sleep.