Baek Ji Hyun
INFORMATION : page. 198~205 / 2017 Vol.19 No.3
교대근무는 24시간 의료를 제공해야 하는 간호사에게 필수적인 근무 형태이다. 그러나 교대근무는 개인 고유의 일주기 리듬(circadian rhythm)을 교란시켜 생물학적, 심리사회적인 변화와 건강문제를 야기 할 수 있으며, 이러한 건강문제 중 하나가 수면 문제이다. 교대근무는 불규칙한 수면 양상을 유발하고, 수면의 질을 저하 시킨다. 수면 부족은 휴식을 취하더라도 그 여파가 2-3일 지속되므로 간호사의 피로를 누적 시킬 수 있다.
Purpose: The purpose of this study was to identify sleep patterns, alertness, and fatigue of shift nurses according to circadian types. Methods: The researchers’ enrolled 17 nurses doing shift work in a tertiary hospital. To evaluate circadian types, a morningness-eveningness questionnaire (MEQ) was administered. Sleep patterns were examined using an actigraph for 14 days. To assess alertness and fatigue, Visual Analogue Scale (VAS) was used. The data were analyzed using ANOVA and Kruskal-Wallis test with a SPSS 21.0 program. Results: The researchers found that 17.6% of participants reported morning type, 47.1% neither type, and 35.3% evening type. Mean total sleep time (TST) was 6.8 h, mean sleep efficacy was 82%, level of alertness was 6.54, and level of fatigue was 5.49, regardless of the type of shift work. Evening type nurses had higher variation in TST and alertness, according to the shift patterns than other circadian type nurses. Evening type nurses also had higher fatigue levels than other circadian type nurses. Conclusion: Sleep, alertness, and fatigue were related with circadian types. These results suggest that circadian rhythm management in shift work nurses, particularly in evening type nurses is urgently needed to improve sleep patterns, alertness, and to decrease the level of fatigue.