Objective:To assess the effectiveness of Buzzy? device in alleviating pain and anxiety in children during puncture-related operation,and to provide more comprehensive intervention option for puncture-related management of children.Methods:Randomized controlled trials(RCTs)about the application of Buzzy? device in puncture-related pain and anxiety of children were searched from China National Knowledge Infrastructure(CNKI),Wanfang,VIP,PubMed,Embase and Web of Science(WOS)databases.The retrieval time was from the establishment of the database to July 2023.In the interventions measures,the control groups used different methods that included standard care group,ShotBlocker device group and distraction card group.The obtained 528 relevant literatures were implemented literature selection and data extraction by two independent reviewers according to the established inclusion and exclusion criteria.RevMan5.4 and Stata17.0 software were adopted to conduct Meta-analysis for the pain and anxiety of main outcome indicators,and the success rate of the first puncture,parents'satisfaction and adverse events of secondary outcome indicators in the literatures.Results:A total of 20 eligible studies that could meet the conditions were included,involving 2 876 children,including 1 110 children in the Buzzy? device group and 1 766 children in the control group.The Buzzy? device group was better than the standard care group and the distraction card group in alleviating puncture-related operation pain in children,and the differences of that among them were statistical significance(Z=7.18,2.13,P<0.05),and was better than the standard care group in anxiety,and the difference was statistical significance(Z=5.00,P<0.05).The Buzzy? device group and the distraction card group were better than standard care group and Shotblocker device group in satisfaction,and the difference was significant(x2=63.236,P<0.05).The interventions in the Buzzy? device group and other groups did not have effect on the success rate of the first puncture and incidence of adverse event.Conclusion:The Buzzy? device can alleviate pain and anxiety of children during puncture operation,and improve children's satisfaction for puncture operation.It does not affect the success rate of puncture,and there is not adverse events in its operation.

Objective:To assess the effectiveness of Buzzy? device in alleviating pain and anxiety in children during puncture-related operation,and to provide more comprehensive intervention option for puncture-related management of children.Methods:Randomized controlled trials(RCTs)about the application of Buzzy? device in puncture-related pain and anxiety of children were searched from China National Knowledge Infrastructure(CNKI),Wanfang,VIP,PubMed,Embase and Web of Science(WOS)databases.The retrieval time was from the establishment of the database to July 2023.In the interventions measures,the control groups used different methods that included standard care group,ShotBlocker device group and distraction card group.The obtained 528 relevant literatures were implemented literature selection and data extraction by two independent reviewers according to the established inclusion and exclusion criteria.RevMan5.4 and Stata17.0 software were adopted to conduct Meta-analysis for the pain and anxiety of main outcome indicators,and the success rate of the first puncture,parents'satisfaction and adverse events of secondary outcome indicators in the literatures.Results:A total of 20 eligible studies that could meet the conditions were included,involving 2 876 children,including 1 110 children in the Buzzy? device group and 1 766 children in the control group.The Buzzy? device group was better than the standard care group and the distraction card group in alleviating puncture-related operation pain in children,and the differences of that among them were statistical significance(Z=7.18,2.13,P<0.05),and was better than the standard care group in anxiety,and the difference was statistical significance(Z=5.00,P<0.05).The Buzzy? device group and the distraction card group were better than standard care group and Shotblocker device group in satisfaction,and the difference was significant(x2=63.236,P<0.05).The interventions in the Buzzy? device group and other groups did not have effect on the success rate of the first puncture and incidence of adverse event.Conclusion:The Buzzy? device can alleviate pain and anxiety of children during puncture operation,and improve children's satisfaction for puncture operation.It does not affect the success rate of puncture,and there is not adverse events in its operation.

Objective To investigate the prevalence and risk factors of non?suicidal self injury among middle school students. Methods Data were collected from 2 140 middle school students with the mean age of 13.92 by stratified sampling method. All students were evaluated with Beck Depression Scale (BDI),Barratt Im?pulsiveness Scale ( BIS ) , Adolescent Self?Rating Life Events Check List ( ASLEC ) , Adolescents Health related Risk Behaviors Inventory ( AHRBI ) , Chinese version of Family Adaptability and Cohesion Evaluation Scales ( FACES II?CV) ,and self?made investigate questionnaire. Results The prevalence of non?suicidal self injury a?mong local middle school students was 23.2%,total 495 adolescents were endorsed non?suicidal self injury,and 49.7% were girls.The results of in multivariable logistic regression showed the main risk factors for non?suicidal self injury among adolescents were being female,depressive symptoms,impulsiveness,negative life events and health re?lated risk behaviors. Conclusion Non?suicidal self injury is high among Chinese adolescent in the city of Dujian?gyan,and it is necessary to take effective interventions.