간호사의 야간교대근무로 인한 혈압의 일중 변동 양상

The Effect of Shift Work on the Diurnal Rhythm of Blood Pressure in Nurses

This study was performed to investigate the effect of shift work on diurnal blood pressure (BP) pattern in nurses. Method: We studied 20 healthy nurses engaged in 3 shift work. 24-hour ambulatory BP monitoring was performed to each nurse two times during the day and night shift. Five nurses were excluded because of inadequate BP measurement. Results: All subjects were female. The mean age was 27.4 years (range: 23–33 years) and mean body mass index was 19.7 Kg/m2 (range: 18.0-21.2 Kg/m2). The changes of systolic BP (17.8±9.1 vs. 13.2± 4.7%, p=0.031), diastolic BP (22.3±8.7 vs. 17.3±9.0%, p=0.061), and heart rate (25.2± 5.2 vs. 12.5±8.7%, p=0.001) during the sleeping period were decreased after a night shift compared with day shift. The non-dipper group significantly increased from 20% to 40% after a night shift (p=0.018). Conclusion: Working night shift is significantly associated with non-dipper status in nurses.