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KMID : 0378019960390010093
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New Medical Journal
1996 Volume.39 No. 1 p.93 ~ p.107
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The Association between the Degree of Fatigue and the Shift Night Nurses´ Circadian Type and Rotating Shift Work Schedules
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Abstract
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This study tried to analyze association between the degree of fatigue during night duty and the shift nurses´ circadian type and rotating shift work schedules.
The data were collected from 69 nurses who were working at the two hospitals in P. city from July 10, 1995 to August 25, 1995.
Frequency and percentage, paired t-test, one-way ANOVA, MANOVA, Duncan test, and multiple regression were used for statistical analysis.
The results are summarized as follows
1. Paired t-test was used to examine the fatigue between the pre-night duty and the first day of the night duty, and the first day of the night duty and the last day of the night duty for the shift nurse’s circadian type.
MANOVA was used to examine the fatigue between the first day of the night duty and the last day of the night duty among the circadian type groups.
In the moderately morning type. neurosensory fatigue(t=-2.73. p<0.05) was significantly different between the pre-night duty and the first day of the night duty. In the neither type and the moderately evening type, physical (t=-6.89, p<0.01; t=-3.27. p<0.01), mental, t= 5.28, p<0.01; t=-2.65, p<0.05), neurosensory(t=-6.89, p<0.01; t=-4.41. p<0.01), and total fatigue(t=-5.91. p<0.01: t=-5.17, p<0.01) were significantly different between the pre-night duty and the first day of the night duty.
In the moderately morning type, physical(t=-2.83. p<0.05).eurosensory(t=-2.61, p<0.05). and total fatigue(t=-2.47, p<0.05) were significantly different between the first day of the night duty and the last day of the night duty. In the neither type. neurosensory fatigue(t=-3.51, p<0.01) was significantly different between the first day of the night duty and the last day of the night duty.
There was no difference in fatigue among the circadian type groups.
2. Paired t-test was used to examine the fatigue between the first day of the night duty and the last day of the night duty for the shift nurses´ rotating shift work schedules. MANOVA was used to
examine the fatigue between the first day of the night duty and the last day of the night duty among the rotating shift work schedules groups.
In advanced shift, neurosensory fatigue(t=-2.82. p<0.05) was significantly different between the first day of the night duty and the last day of the night duty. In delayed shift. physical(t=-3.12, p<0.01), mental(t=-2.86, p<0.01), neurosensory(t=-2.86. p<0.01). and total fatigue(t= 3.14, p<0.01) were significantly different between the first day of the night duty and the last day of the night duty. In irregular shift, neurosensory fatigue(t=-2.28, p<0.05) was significantly different between the first day of the night duty and the last day of the night duty.
There was signifiquently different in fatigue among the rotating shift work schedules groups(Wilk =2.57, p<0.05).
3. Paired t-test was used to examine the fatigue from the first day of the night duty to the last day of the night duty for the days of the night duty of the shift nurses. One-way ANOVA was used to examine the fatigue among the days of night duty.
In between the first day of the night duty and the 3rd night duty. neurosensory fatigue(t=-2.43. p<0.05) was significantly different between the first day of the night duty and the List day of the night duty. In between the first day of the night duty and the 4th night duty, physical(t=-2.44. p<0.05), neurosensory(t=-3.48, p<0.01). total fatigue(t=-2.75, p<0.05) were significantly different between the first day of the night duty and the last day of the night duty. In between the first day of the night duty and the 5th night duty. neurosensory fatigue(t=-2.24, p<0.05) was significantly different between the first day of the night duty and the last day of the night duty.
There was no difference in fatigue between the days of night duty.
4. Multiple regression was used to analysis the relationship among the degree of .fatigue(dependent variable), circadia, type, rotating shift work schedules. days of the night duty. individual activity, and task requirement.
The larger amount of individual activity and task requirement had tendency to the higher degree of fatigue at night duty(F=5.42, p<0.0001: R--.43).
Overall, this study showed that shift work had difficulties in adapting to the night shift work. Moderately evening type and neither type were more adjusted to night shift than moderately morning type. In rotating shift work schedules. there was a subject difficult of any conclusion to results of this study. Therefore, more studies will be required.
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KEYWORD
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