| Xiang Xinming,Ma Yarong,Zhang Jie,He Hongbo,Sleep characteristics and their impact on suicide risk among adolescents with depressive disorder and bipolar disorder[J].SICHUAN MENTAL HEALTH,2022,35(6):543-549 |
| Sleep characteristics and their impact on suicide risk among adolescents with depressive disorder and bipolar disorder |
DOI：10.11886/scjsws20220218001 |
| English keywords:Adolescents Depressive disorder Bipolar disorder Polysomnography Suicide risk |
| Fund projects:广州市科技计划项目（项目名称：ECT治疗青少年抑郁障碍临床疗效与认知损害相关神经可塑性研究，项目编号：202102020045） |
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| Objective To compare the differences in sleep structure characteristics between adolescents with depressive disorder and adolescents with bipolar disorder， and to explore the impact of sleep indicators and other factors on the suicide risk of adolescents with affective disorder.Methods The medical records of adolescents with depressive disorder （n=97） and bipolar disorder （n=52） who met the International Classification of Diseases， tenth edition （ICD-10） and hospitalized in the Affiliated Brain Hospital of Guangzhou Medical University from January 1， 2019 to June 30， 2021 were retrospectively reviewed. Data including age， gender， body mass index （BMI）， psychiatric diagnosis， the Nurses' Global Assessment of Suicide Risk （NGASR） score and polysomnography （PSG） results of the patients were collected. Then patients were divided into two groups according to NGASR score， scored 0~5 were in the low risk group （n=32） and scored above 5 were in the high risk group （n=117）. Meantime， the PSG data of normal adolescents （n=80） in the previous literature were collected as the control group. Thereafter， a multiple linear regression model was established to explore the related factors affecting suicide risk in adolescents with affective disorder.Results The sleep efficiency and the proportion of stage N2 sleep in high risk group were lower than those in low risk group （Z=-2.138， -2.520， P<0.05）. The total sleep time， N2 sleep duration and rapid eye movement （REM） sleep time in depression group were less than those in bipolar group （t=-2.822， -3.087， -2.277， P<0.05 or 0.01）. The proportion of REM sleep in depression group and bipolar group were lower than those in control group （t=-2.369， -2.069， P<0.05）. Linear regression analysis denoted that the factors affecting the suicide risk in adolescents with affective disorder included stage N1 sleep duration （β=0.019， P<0.05）， gender （male vs. female， β=-4.051， P<0.01） and psychiatric diagnosis （bipolar disorder vs. depressive disorder， β=-1.429， P<0.05）.Conclusion In contrast to adolescents with bipolar disorder， the sleep structure of adolescents with depressive disorder is characterized by poor sleep continuity and less light sleep. Furthermore， the N1 sleep duration， female gender and diagnosis of depressive disorder are risk factors affecting the suicide in adolescents with affective disorder. |
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