Adriana Rusu1, Cornelia Bala2, Mariana Graur3, Gabriela Creteanu4, Magdalena Morosanu5, Gabriela Radulian6, Amorin R Popa7, Romulus Timar8, Lucretia Pircalaboiu9, Gabriela Roman1. 1. Department of Diabetes and Nutrition, Iuliu Hatieganu University of Medicine and Pharmacy, 2-4 Clinicilor Street, 400006, Cluj-Napoca, Romania. 2. Department of Diabetes and Nutrition, Iuliu Hatieganu University of Medicine and Pharmacy, 2-4 Clinicilor Street, 400006, Cluj-Napoca, Romania. cbala@umfcluj.ro. 3. Department of Diabetes, Nutrition and Metabolic Diseases, Gr. T. Popa University of Medicine and Pharmacy, St. Spiridon Clinical Emergency Hospital, Iasi, Romania. 4. Emergency County Hospital, Suceava, Romania. 5. Dunarea de Jos University, Galaţi, Romania. 6. Carol Davila University of Medicine and Pharmacy, Bucharest, Romania. 7. Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania. 8. Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. 9. Emergency County Hospital, Targu Jiu, Romania.
Abstract
PURPOSE: The objective of this analysis was to assess whether the association between sleep duration and BMI and between sleep duration and waist circumference is moderated by age and self-perceived stress. METHODS: We analyzed data from 2034 participants enrolled in 2014 in the cross-sectional study Obesity in Romania Study-study of the prevalence of obesity and related risk factors in Romanian general population (ORO study). RESULTS: Interaction between sleep duration, self-perceived stress and age, with BMI as dependent variable, was statistically significant after adjustment for demographic and lifestyle factors (p value for interaction 0.003). In participants without self-perceived stress, a linear negative association between sleep duration and BMI was observed only in those 18-39 years old (p = 0.049), with BMI decreasing in parallel with increased sleep duration. In participants with self-perceived stress, a U-shaped relationship was observed between BMI and sleep duration in those 40-64 years old, with higher BMI in those sleeping ≤ 6 h and ≥ 9 h/night compared to those sleeping > 6 and < 9 h/night (p = 0.002 and 0.005). Those ≥ 65 years old with self-perceived stress sleeping ≥ 9 h/night had a significantly higher BMI compared to those in other sleep duration categories (p = 0.041 vs. those sleeping ≤ 6 h/night and p = 0.013 vs. to those sleeping > 6 and < 9 h/night). No interaction between age, self-perceived stress and sleep duration, with waist circumference as dependent variable was observed. CONCLUSIONS: In our sample, the association between sleep duration and BMI was moderated by self-perceived stress and age.
PURPOSE: The objective of this analysis was to assess whether the association between sleep duration and BMI and between sleep duration and waist circumference is moderated by age and self-perceived stress. METHODS: We analyzed data from 2034 participants enrolled in 2014 in the cross-sectional study Obesity in Romania Study-study of the prevalence of obesity and related risk factors in Romanian general population (ORO study). RESULTS: Interaction between sleep duration, self-perceived stress and age, with BMI as dependent variable, was statistically significant after adjustment for demographic and lifestyle factors (p value for interaction 0.003). In participants without self-perceived stress, a linear negative association between sleep duration and BMI was observed only in those 18-39 years old (p = 0.049), with BMI decreasing in parallel with increased sleep duration. In participants with self-perceived stress, a U-shaped relationship was observed between BMI and sleep duration in those 40-64 years old, with higher BMI in those sleeping ≤ 6 h and ≥ 9 h/night compared to those sleeping > 6 and < 9 h/night (p = 0.002 and 0.005). Those ≥ 65 years old with self-perceived stress sleeping ≥ 9 h/night had a significantly higher BMI compared to those in other sleep duration categories (p = 0.041 vs. those sleeping ≤ 6 h/night and p = 0.013 vs. to those sleeping > 6 and < 9 h/night). No interaction between age, self-perceived stress and sleep duration, with waist circumference as dependent variable was observed. CONCLUSIONS: In our sample, the association between sleep duration and BMI was moderated by self-perceived stress and age.
Entities:
Keywords:
Age; Body mass index; Self-perceived stress; Sleep duration; Waist circumference
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