Effects of Sleep Deprivation on the Cognitive Performance of Nurses Working in Shift
Journal Title: Journal of Clinical and Diagnostic Research - Year 2017, Vol 11, Issue 8
Abstract
Introduction: Sleep deprivation and altered circadian rhythm affects the cognitive performance of an individual. Quality of sleep is compromised in those who are frequently involved in extended working hours and shift work which is found to be more common among nurses. Cognitive impairment leads to fatigability, decline in attention and efficiency in their workplace which puts their health and patients’ health at risk. Aim: To find out the prevalence of sleep deprivation and its impact on cognition among shift working nurses. Materials and Methods: Sleep deprivation among 97 female and three male healthy nurses of age 20–50 years was assessed by Epworth sleepiness scale (ESS). Cognition was assessed by Montreal Cognitive Assessment (MoCA) questionnaire. Mobile applications were used to test their vigilance, reaction time, photographic memory and numerical cognition. The above said parameters were assessed during end of day shift and 3-4 days after start of night shift. Results: Poor sleep quality was observed among 69% of shift working nurses according to ESS scores. The cognitive performance was analysed using Wilcoxon signed rank test. The MoCA score was found to be lesser among 66% of nurses during night (25.72) than day (26.81). During the night, 32% made more mathematical errors. It was also found that, 71%, 83% and 68% of the nurses scored lesser during night in the Stroop’s colour test, vigilance test and memory tests respectively. Thus, impairment in cognitive performance was statistically significant (p<0.001) among shift working nurses. Conclusion: Cognitive performance was found to be impaired among shift working nurses, due to poor sleep quality and decreased alertness during wake state. Thus, shift work poses significant cognitive risks in work performance of nurses.
Authors and Affiliations
Deepalakshmi Kaliyaperumal, Yaal Elango, Murali Alagesan, Iswarya Santhanakrishanan
Keywords
Related Articles
- EP ID EP358012
- DOI 10.7860/JCDR/2017/26029.10324
- Views 66
- Downloads 0
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