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A survey of sleep deprivation patterns and their effects on cognitive functions of residents and interns in Korea

Title
A survey of sleep deprivation patterns and their effects on cognitive functions of residents and interns in Korea
Authors
Kim H.J.Kim J.H.Park K.-D.Choi K.-G.Lee H.W.
Ewha Authors
최경규박기덕이향운
SCOPUS Author ID
최경규scopus; 박기덕scopus; 이향운scopus
Issue Date
2011
Journal Title
Sleep Medicine
ISSN
1389-9457JCR Link
Citation
vol. 12, no. 4, pp. 390 - 396
Indexed
SCIE; SCOPUS WOS scopus
Abstract
Objective: To investigate the effects of sleep deprivation on physical health, cognition, and work performance in residents and interns who suffer from chronic sleep deprivation. Methods: Fifty-eight residents and interns were recruited in this study. They completed sleep diary for 2. weeks and questionnaires including health complaints, daytime sleepiness and work performance, and were evaluated with actigraphy. Stroop test, continuous performance test (CPT), trail-making test (TMT) and Korean-California verbal learning test (K-CVLT) were done as neuropsychological evaluations. Subjects were divided into severe sleep deprived (S-SD, average night sleep less than 4. h), mild to moderate deprived (M-SD, 4-6. h), and non-sleep deprived (Non-SD, more than 6. h) groups. Results: Forty-one subjects (70.7%) were sleep-deprived. Mean sleep duration was 5.0 ± 1.2 h/night and work duration was 14.9 ± 2.7 h/day. The S-SD group showed higher Epworth Sleepiness Scales than M-SD and Non-SD groups. Severe sleep deprivation was associated with higher level of stress, more frequent attention deficit, and difficulty in learning (P<0.05), but not with decreased neuropsychological test results. Conclusion: These results suggested that sleep deprivation in residents and interns might affect their health as well as work performance that might influence the quality of patient care, although active compensatory brain mechanisms could be involved to preserve their performance. © 2011 Elsevier B.V.
DOI
10.1016/j.sleep.2010.09.010
Appears in Collections:
의학전문대학원 > 의학과 > Journal papers
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