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Open AccessArticle

Sleep Duration and Sleep Quality Associated with Dietary Index in Free-Living Very Old Adults

1
Faculty of Kinesiology, University of Zagreb, 10 000 Zagreb, Croatia
2
Department of Orthopedics, General Medical Hospital ‘Sveti Duh’, 10 000 Zagreb, Croatia
*
Author to whom correspondence should be addressed.
Nutrients 2018, 10(11), 1748; https://doi.org/10.3390/nu10111748
Received: 15 October 2018 / Revised: 6 November 2018 / Accepted: 11 November 2018 / Published: 13 November 2018
(This article belongs to the Special Issue Older Individuals' Nutrition)
The main purpose of the present study was to determine the associations between sleep duration and sleep quality with respect to dietary habits. In this cross-sectional study, 810 free-living older adults aged ≥85 years were recruited from six neighborhoods from the city of Zagreb. Diet, sleep duration and sleep quality were assessed using self-reported questionnaires. The associations between sleep duration and sleep quality with respect to dietary habits were examined using generalized estimating equations with Poisson regression analyses. After adjusting for body-mass index, self-rated health, psychological distress, physical activity, socioeconomic status, chronic disease/s, sex and age, we revealed that ‘short’ (<7 h; Rate Ratio (RR) = 0.43; 95% CI(confident interval) 0.30 to 0.64) and ‘long’ (>8 h; RR = 0.26; 95% CI 0.11 to 0.48) sleep durations and ‘good’ sleep quality (RR = 1.13; 95% CI 1.06 to 1.20) were associated with a ‘moderate-to-high’ healthy diet. When sleep duration and sleep quality were entered simultaneously into Model 3, ‘short’ (RR = 0.28; 95% CI 0.16 to 0.44 and ‘long’ (RR = 0.27; 95% CI 0.15 to 0.52) sleep duration and ‘good’ sleep quality (RR = 1.14; 95% CI 1.05 to 1.25) remained associated with a ‘moderate-to-high’ healthy diet. Our study shows that both ‘short’ and ‘long’ sleep duration and ‘good’ sleep quality are associated with ‘moderate-to-high’ healthy diets. View Full-Text
Keywords: sleep hygiene; geriatrics; nutrition; association; logistic regression sleep hygiene; geriatrics; nutrition; association; logistic regression
MDPI and ACS Style

Štefan, L.; Radman, I.; Podnar, H.; Vrgoč, G. Sleep Duration and Sleep Quality Associated with Dietary Index in Free-Living Very Old Adults. Nutrients 2018, 10, 1748.

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