Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2018 Apr 15;15(4):758.
doi: 10.3390/ijerph15040758.

The Associations between Sleep Duration and Sleep Quality with Body-Mass Index in a Large Sample of Young Adults

Tomislav Krističević  1 , Lovro Štefan  2 , Goran Sporiš  3
Affiliations

The Associations between Sleep Duration and Sleep Quality with Body-Mass Index in a Large Sample of Young Adults

Tomislav Krističević et al. Int J Environ Res Public Health. .

Abstract

Background: The main aims of this study were to explore the associations between time spent in bed (as a proxy of sleep duration) and sleep quality with overweight/obesity status in a large sample of young adults.

Methods: In this cross-sectional study, participants were 2100 university students (49.6% of women). We used Pittsburgh Sleep Quality Index (PSQI) questionnaire to assess time spent in bed and sleep quality. Body-mass index (BMI) was self-reported and dichotomized as normal (<25 kg/m²) vs. overweight/obesity (≥25 kg/m²) status.

Results: In model 1, both short (<6 h/day, OR = 2.72; 95% CI 1.27 to 5.84) and long (>10 h/day, OR = 3.38; 95% CI 2.12 to 5.40) time spent in bed were associated with a greater likelihood of being overweight/obese. In model 2, poor sleep quality (>5 points, OR = 1.45; 95% CI 1.14 to 1.83) was associated with a greater likelihood of being overweight/obese. After entering time spent in bed and sleep quality simultaneously into the model 3, both short (OR = 2.64; 95% CI 1.23 to 5.66) and long (OR = 3.27; 95% CI 2.04 to 5.23) time spent in bed and poor sleep quality (OR = 1.40; 95% CI 1.10 to 1.78) were associated with overweight/obesity status.

Conclusions: Our results show that both short and long time spent in bed and poor sleep quality are associated with overweight/obesity status in young adults. Special interventions and policies that use both sleep duration and sleep quality as protective factors against overweight/obesity are warranted.

Keywords: logistic regression analysis; nutritional status; sleeping habits; university students.

PubMed Disclaimer

Conflict of interest statement

The author declares no conflict of interest.

References

    1. World Health Organization . Global Strategy on Diet, Physical Activity and Health. WHO; Geneva, Switzerland: 2010.
    1. The Emerging Risk Factor Collaboration Separate and combined associations of body-mass index and abdominal adiposity with cardiovascular disease: Collaborative analysis of 58 prospective studies. Lancet. 2011;377:1085–1095. - PMC - PubMed
    1. Berrington de Gonzalez A., Hartge P., Cerhan J.R., Flint A.J., Hannan L., Maclnnis R.J., Moore S.C., Tobias G.S., Anton-Culver H., Freeman L.B., et al. Body-mass index and mortality among 1.46 million white adults. N. Engl. J. Med. 2010;363:2211–2219. doi: 10.1056/NEJMoa1000367. - DOI - PMC - PubMed
    1. NCD Risk Factor Collaboration (NCD-RisC). Worldwide trends in body-mass index, underweight, overweight, and obesity from 1975 to 2016: A pooled analysis of 2416 population-based measurement studies in 128·9 million children, adolescents, and adults. Lancet. 2017 doi: 10.1016/S0140-6736(17)32129-3. - DOI - PMC - PubMed
    1. Li X.H., Lin S., Guo H., Huang Y., Wu L., Zhang Z., Ma J., Wang H.J. Effectiveness of a school-based physical activity intervention on obesity in school children: A nonrandomized controlled trial. BMC Public Health. 2014;14:1282. doi: 10.1186/1471-2458-14-1282. - DOI - PMC - PubMed

LinkOut - more resources