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CC BY-NC-ND 4.0 · Sleep Sci 2021; 14(04): 375-378
DOI: 10.5935/1984-0063.20200112
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The effect of subjective sleep latency on BMI of medical interns during and before COVID-19 pandemic

Ehsan Bastanhagh MD
1   Department of Anesthesiology and Critical Care, Tehran University of Medical Sciences, Tehran, Iran.
,
Reza Erfanian MD
2   Department of Otorhinolaryngology-Head and Neck Surgery, Sleep Medicine Fellowship, Otorhinolaryngology Research Center, Amir Alam Hospital, Tehran University of Medical Sciences, Tehran, Iran.
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Objectives Longer subjective sleep latency and eveningness chronotype are associated with higher BMI. Moreover, COVID-19 lockdown changes have been associated with increased BMI. The aim of this study was to investigate the effect of subjective sleep parameters on BMI of medical interns during and before COVID-19 pandemic.

Material and Methods This cross-sectional study was performed among medical interns. Bedtime, sleep latency, waking time, sleep duration, and reduced morningness-eveningness scores were evaluated.

Results There was significant difference between bedtime before (00:11±50) and during (01:10±85) the pandemic in females (p<0.001). The mean circadian score before and during the pandemic showed significant decrease in females (p=0.011). The correlation between BMI with subjective sleep latency in females before and during the pandemic ((r=0.439, p=0.017), (r=0.422, p=0.014)) was significant.

Conclusion COVID-19 pandemic was associated with a change toward nocturnal life among female medical interns. Subjective sleep latency was significantly correlated with BMI in females.

Coronavirus Infections - Sleep Latency - Obesity


Publication History

Received: 11 November 2020

Accepted: 10 February 2021

Article published online:
30 November 2023

© 2023. Brazilian Sleep Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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  • REFERENCES

  • 1 GBD 2015 Risk Factors Collaborators. Global, regional, and national comparative risk assessment of 79 behavioural, environmental and occupational, and metabolic risks or clusters of risks, 1990-2015: a systematic analysis for the Global Burden of Disease Study 2015. Lancet. 2016 Oct;388(10053):1659-724.
  • 2 Broussard JL, Van Cauter E. Disturbances of sleep and circadian rhythms: novel risk factors for obesity. Curr Opin Endocrinol Diabetes Obes. 2016 Oct;23(5):353-9.
  • 3 Tran PV, Chowdhury VS, Furuse M. Central regulation of feeding behavior through neuropeptides and amino acids in neonatal chicks. Amino Acids. 2019 Aug;51(8):1129-52.
  • 4 Ip CK, Zhang L, Farzi A, Qi Y, Clarke I, Reed F, et al. Amygdala NPY circuits promote the development of accelerated obesity under chronic stress conditions. Cell Metab. 2019 Jul;30(1):111-28.e6.
  • 5 Brooks SK, Webster RK, Smith LE, Woodland L, Wessely S, Greenberg N, et al. The psychological impact of quarantine and how to reduce it: rapid review of the evidence. Lancet. 2020 Mar;395(10227):912-20.
  • 6 Zhang F, Shang Z, Ma H, Jia Y, Sun L, Guo X, et al. High risk of infection caused posttraumatic stress symptoms in individuals with poor sleep quality: a study on influence of coronavirus disease (COVID-19) in China. Sleep Med. 2020 Mar 24; [Epub preprint]. DOI: https://doi. org/10.1101/2020.03.22.20034504
  • 7 Walker WH, Walton JC, Vries AC, Nelson RJ. Circadian rhythm disruption and mental health. Transl Psychiatry. 2020;10(1):28.
  • 8 Cellini N, Canale N, Mioni G, Costa S. Changes in sleep pattern, sense of time and digital media use during COVID-19 lockdown in Italy. J Sleep Res. 2020;29(4):e13074.
  • 9 Sun J, Chen M, Cai W, Wang Z, Wu S, Sun X, et al. Chronotype: implications for sleep quality in medical students. Chronobiol Int. 2019 Aug;36(8):1115-23.
  • 10 Marquezea EC, Lemosa LC, Soaresa N, Lorenzi-Filho G, Morenoa CR. Weight gain in relation to night work among nurses. Work. 2012;41(Suppl 1):2043-8.
  • 11 Ko GT, Chan JC, Chan AW, Wong PT, Hui SS, Tong SD, et al. Association between sleeping hours, working hours and obesity in Hong Kong Chinese: the ‘better health for better Hong Kong’ health promotion campaign. Int J Obes (Lond). 2007 Feb;31(2):254-60.
  • 12 St-Onge MP, Perumean-Chaney S, Desmond R, Lewis CE, Yan LL, Person SD, et al. Gender differences in the association between sleep duration and body composition: the Cardia Study. Int J Endocrinol. 2010;2010:726071.
  • 13 Cournot M, Ruidavets JB, Marquie JC, Esquirol Y, Baracat B, Ferrièeres J. Environmental factors associated with body mass index in a population of Southern France. Eur J Cardiovasc Prev Rehabil. 2004;11(4):291-7.
  • 14 Gupta S, Bhardwaj A, Nadda A, Gill A, Mittal A, Gupta S. A comparative study of sleep quality in different phases of the medical course: A study from Haryana (North India). J Family Med Prim Care. 2020 Apr;9(4):2006-10.
  • 15 Ayala EE, Berry R, Winseman JS, Mason HR. A cross-sectional snapshot of sleep quality and quantity among US medical students. Acad Psychiatry. 2017 Oct;41(5):664-8.
  • 16 Horne JA, Ostberg O. A self-assessment questionnaire to determine morningness- eveningness in human circadian rhythms. Int J Chronobiol. 1976;4(2):97-110.
  • 17 Rahafar A, Meysam SJ, Sadeghpour A, Heidari Z, Kasaeian A. Psychometric properties of the Persian version of the reduced morningness-eveningness questionnaire: further evidence. Sleep Biol Rhythms. 2015;13(2):112-6.
  • 18 Song K, Xu R, Stratton TD, Kavcic V, Luo D, Hou F, et al. Sex differences and psychological stress: responses to the COVID-19 epidemic in China. medRxiv. 2020 Jun 02; [Epub preprint]. DOI: https://doi.org/10.1101/2020.04.29.20084061
  • 19 Druiven SJM, Hovenkamp-Hermelink JHM, Knapen SE, Kamphuis J, Haarman BCM, Penninx B, et al. Stability of chronotype over a 7-year follow-up period and its association with severity of depressive and anxiety symptoms. Depress Anxiety. 2020 May;37(5):466-74.
  • 20 Shawa N, Rae DE, Roden LC. Impact of seasons on an individual’s chronotype: current perspectives. Nat Sci Sleep. 2018;10:345-54.
  • 21 Duarte LL, Menna-Barreto L, Miguel MA, Louzada F, Araujo J, Alam M, et al. Chronotype ontogeny related to gender. Braz J Med Biol Res. 2014;47(4):316-20.
  • 22 Khalsa SB, Jewett ME, Cajochen C, Czeisler CA. A phase response curve to single bright light pulses in human subjects. J Physiol. 2003 Jun;549(Pt 3):945-52.
  • 23 Kim KM, Han SM, Heo K, Kim WJ, Chu MK. Sex differences in the association between chronotype and risk of depression. Sci Rep. 2020;10(1):18512.
  • 24 Bowman MA, Duggan KA, Brindle RC, Kline CE, Krafty RT, Thayer JF, et al. Prospective associations among objectively and subjectively assessed sleep and the metabolic syndrome. Sleep Med. 2019 Jun;58:1-6.
  • 25 Adam TC, Epel ES. Stress, eating and the reward system. Physiol Behav. 2007 Jul;91(4):449-58.
  • 26 Mallampalli MP, Carter CL. Exploring sex and gender differences in sleep health: a Society for Women’s Health Research Report. J Womens Health (Larchmt). 2014 Jul;23(7):553-62.
  • 27 Olfert MD, Barr ML, Charlier CM, Famodu OA, Zhou W, Mathews AE, et al. Self-Reported vs. measured height, weight, and BMI in young adults. Int J Environ Res Public Health. 2018 Oct;15(10):2216.
  • 28 Bhutani S, Kahn E, Tasali E, Schoeller DA. Composition of two-week change in body weight under unrestricted free-living conditions. Physiol Rep. 2017 Jul;5(13):e13336.