| Objective:The purpose of this study is to evaluate the sleep status of hospital employees in grade-A tertiary hospital and to explore the relationship between shift work,working hours and sleep disorders of medical staff.Providing scientific reference for scientific scheduling to improve the sleep quality of medical staff.Methods:The demographic information,shift work,working hours per week and sleep related information of medical staff in five grade-A tertiary hospital in Lanzhou were investigated by questionnaire.The Pittsburgh Sleep Quality Index?PSQI?was used to evaluate the sleep quality of medical staff.Descriptive analysis was used to describe the basic information of the medical staff.T-test,ANOVA,Wilcoxon rank sum test,kruakall Wallis rank sum test or chi square test were used to compare between groups according to the characteristics of relevant indicators.Logistic regression analysis was used to explore the relationship between shift work,working hours and sleep disorders,and the dose-response relationship between shift work,working hours and sleep disorders was evaluated with the limited cubic spline model.In this study,all analyses were performed using Stata 12.0.The test level was?=0.05,and all P values were bilateral tests.Results:?1?A total of 1623 medical workers in the grade-A tertiary hospital were investigated in this study.The majority of them were women,accounting for82.26%of the employees investigated.The average age of the subjects was 31.72years old,and 83.43%of them were under 40 years old.A total of 1023 nurses participated in the study,accounting for 63.03%of the total.There are 773 married medical workers,accounting for 47.63%of the works participated in this study,and828 unmarried medical workers,accounting for 51.02%of the total.The subjects of this study are mainly undergraduates,1052 medical workers have bachelor degree,accounting for 64.82%of the participants.There are 494 medical staff from internal medicine,accounting for 30.44%of the total,and 446 surgical medical staff,accounting for 27.48%of the number of people surveyed.A total of 1061 people work35 to 48 hours a week,accounting for 65.37%of the participants.The titles of the subjects are mainly junior titles,there are 841 medical workers with junior titles,accounting for 51.82%of the medical staff surveyed.?2?In this study,the scores of seven dimensions of the Pittsburgh sleep quality index?PSQI?-subjective sleep quality,sleep latency,sleep duration,sleep efficiency,sleep disturbances,sleep medication use,daytime dysfunction were 1.37±0.83,1.37±0.91,1.55±0.72,0.51±0.86,1.22±0.72,0.28±0.72 and 1.75±0.91,respectively.The total score of PSQI was 8.05±3.60.The scores of the medical workers participating in this study on the seven dimensions of Pittsburgh sleep quality index scale were higher than that of the general adults in China,and the total score of PSQI was also higher than that of the general adults in China.These results showed that the sleep quality of the medical staff in the grade-A tertiary hospital was lower than that of the general adults.?3?Of the 1623 medical workers involved in this study,1027 had sleep disorders.The average shift years of medical staff with sleep disorder was 6.85±6.30,which was higher than that of medical staff with normal sleep.Logistic regression analysis showed that there was a correlation between shift work and sleep disorders.Compared with the medical workers without shift,the risk of sleep disorders in the medical workers with shift of more than 1 year and less than 5 years,shift of more than 5 years and less than 10 years,shift of more than 10 years and less than 15 years and shift of more than 15 years were as follows:[odds ratio,OR=2.38,95%confidence interval,CI:1.71-3.32,P<0.001];[OR=2.74,95%CI:1.91-3.93,P<0.001];[OR=2.57,95%CI:1.61-4.10,P<0.001];[OR=1.87,95%CI:1.05-3.30,P<0.001]??4?The average working hours per week of the medical staff with sleep disorders were 47.08±9.79,which was not statistically different from those with normal sleep.The results of logistic regression analysis showed that there was a statistical correlation between long working hours and sleep disorders of medical staff compared with the normal working hours.Compared with the medical workers who worked 35-48 hours a week,the risk of sleep disorders in the medical workers who worked 49-55 hours a week and 56 hours or more was as follows:[OR=1.48,95%CI:1.07-2.04,P=0.02];[OR=1.76,95%CI:1.28-2.42,P<0.001].There was no significant difference in the risk of sleep disorders between medical workers who worked 34hours or less per week and those who worked 35 to 48 hours per week?P>0.05?.?5?The result of restricted cubic spline model analysis showed that there was an inverted"U"shaped dose-response relationship between shift work and sleep disorders of medical staff(Poverall<0.001,Pnon-linear<0.001).The risk of sleep disorders of shift work medical staff increased first and then decreased with the extension of shift years.Conclusion:?1?The sleep quality of medical staff is lower than that of general adults in China.?2?There is a correlation between shift work and the prevalence of sleep disorders,and there is a dose-response relationship between shift work and sleep disorders.?3?There is a correlation between long working hours of medical staff and the prevalence of sleep disorders. |
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