Indian Journal of Sleep Medicine

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VOLUME 7 , ISSUE 1 ( January-March, 2012 ) > List of Articles

ORIGINAL ARTICLE

A Survey of the Demographics and Sleep Habits in Medical Students and House Officers in Singapore

S. Venkateswaran

Keywords : Demographics, Hypertension, Snoring, Sleep, Hypersomnolence

Citation Information : Venkateswaran S. A Survey of the Demographics and Sleep Habits in Medical Students and House Officers in Singapore. Indian Sleep Med 2012; 7 (1):19-22.

DOI: 10.5958/j.0973-340X.7.1.005

License: CC BY-SA 4.0

Published Online: 01-03-2012

Copyright Statement:  Copyright © 2012 Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Background: To survey the sleep habits and the demographics of medical students and interns (house officers) at our institution. Methods: Third- and fifth-year medical students and interns at our hospital were surveyed between November 2006 and March 2007 using a confidential survey. Results: The response rate was 96.5%, with 221 individuals completing the survey. Of these, 59.2% were male and 38.0% were female, with 2.8% unknown. Their mean age was 23.8±1.4 years. There were 60 interns, 115 fifth-year medical students, and 46 third-year medical students. The mean sleep latency was 14.7±9.3 min, and the mean total sleep time was 6.1±1.0 h. Snoring was present in 13.6% of the subjects and 59.2% took afternoon naps on the weekends. Ten participants were admitted to having medical comorbidities, with hypertension affecting 2 people. The majority (77.3%) had daytime hypersomnolence, and 71.0% fell asleep returning home on public transport in the evenings. There were 16.7% who admitted to falling asleep at the wheel, but only 1.8% had car accidents attributable to falling asleep while driving. There were no significant differences between the three groups in all the categories. Conclusions: Participants of this survey were young and generally healthy, but were predominantly hypersomnolent during the day with a significant minority having microsleeps at the wheel. There may be more than one possible explanation for this.


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  1. Kaplan J. Sleep deprivation. In: Fundamentals of Sleep Technology Butkov NL, Lee-Chiong T. Lippincott Williams and Wilkins, 2007; 25.
  2. National Sleep Foundation: Sleep in America Poll 2005. National Sleep Foundation, Washington, DC, 2005.
  3. Thorpy Michael J, Lieberman 3rd JA, Roth T, Owens GS. Managed care considerations. Am J Manag Care 2007; 13:S148-S153.
  4. Dinges DF, Rogers NL, Baynard MD: Chronic Sleep Deprivation. In Kryger MH, Roth T, Dement WC (Eds). Principles and Practice of Sleep Medicine, 4th ed, Elsevier Saunders, Philadelphia, PA 2005: 67-74
  5. Barger, LK Cade BE, Ayas, NT, et. al., for the Harvard Work Hours, Health, and Safety Group. Extended work shifts and the risk of motor vehicle crashes among interns. N Engl J Med 2005; 352:125-134
  6. Lockley SW, Cronin JW, Evans, EE, et. al., for the Harvard Work Hours, Health And Safety Group. Effect of reducing interns’ weekly work hours on sleep and attentional failures. N Engl J Med 2004; 351:1829-1837.
  7. Hua L, Poh H. P454 Prevalence of snoring in Singapore and its psychosocial implications. Sleep Med 2006; 7:S113.
  8. Ng TP, Seow A, Tan WC. Prevalence of snoring and breathing-related disorders in Chinese, Malay and Indian adults in Singapore. Eur Respir J 1998; 12:198-203
  9. T. Young, M. Palta, J. Dempsey et al., The occurrence of sleep-disordered breathing among middle-aged adults. N Eng J Med 1993; 327: 1230-1235.
  10. Johns MW. A new method for measuring daytime sleepiness: the Epworth Sleepiness Scale. Sleep 1991; 14:540-545.
  11. Miletin MS, Hanly PJ. Measurement properties of the Epworth Sleepiness Scale. Sleep Med 2003; 4:195-199.
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