With the development of the economy in our country,trauma has already become a major medical burden in society,traffic injury has already become a major type of trauma,and the trauma of lower limbs is relatively much more.Since patients with lower extremity trauma have limited mobility,postoperative dressing changes need to be done at the bedside.At present,in the process of lower limb dressing change,it is necessary for family members or medical staff to help elevate the affected limb,which is unstable and difficult to adhere to.The dressing change process not only increases the pain of patients,but also affects the sight line and comfort of medical staff during operation,resulting in incomplete wound exposure and affecting the effect of dressing change.The washing solution and disinfectant in the dressing change process are easy to contaminate the sheets,which increases the difficulty of ward management.This dressing change method is unscientific,irregular and inconvenient to operate.Therefore,the medical staff of department of emergency of the First Hospital of Jiaxing City developed a mobile treatment vehicle for leg care for debridement and dressing change of patients with lower limb trauma,this device has been granted the National Utility Model Patent of China(patent numbeer:ZL 2021 2 0647636.0),which makes bedside debridement and dressing change more scientific,convenient and normative.The utility model relates to a mobile treatment vehicle for leg care,which is composed of a base,a support seat,a leg support plate,a support rod,a fixed plate and a smart trash can.The angle of the leg support plate can be adjusted 360 °by loosening the bolt,and the height can be adjusted by sliding up and down.Adequate rotation flexibility and high adjustment space can effectively solve problems of bedside debridement and dressing change for patients with lower limb trauma,provide scientific,simple and operable auxiliary tools for trauma medical staff,improve the comfort of patients and operators,and improve the quality of ward management in emergency trauma ward.

With the development of the economy in our country,trauma has already become a major medical burden in society,traffic injury has already become a major type of trauma,and the trauma of lower limbs is relatively much more.Since patients with lower extremity trauma have limited mobility,postoperative dressing changes need to be done at the bedside.At present,in the process of lower limb dressing change,it is necessary for family members or medical staff to help elevate the affected limb,which is unstable and difficult to adhere to.The dressing change process not only increases the pain of patients,but also affects the sight line and comfort of medical staff during operation,resulting in incomplete wound exposure and affecting the effect of dressing change.The washing solution and disinfectant in the dressing change process are easy to contaminate the sheets,which increases the difficulty of ward management.This dressing change method is unscientific,irregular and inconvenient to operate.Therefore,the medical staff of department of emergency of the First Hospital of Jiaxing City developed a mobile treatment vehicle for leg care for debridement and dressing change of patients with lower limb trauma,this device has been granted the National Utility Model Patent of China(patent numbeer:ZL 2021 2 0647636.0),which makes bedside debridement and dressing change more scientific,convenient and normative.The utility model relates to a mobile treatment vehicle for leg care,which is composed of a base,a support seat,a leg support plate,a support rod,a fixed plate and a smart trash can.The angle of the leg support plate can be adjusted 360 °by loosening the bolt,and the height can be adjusted by sliding up and down.Adequate rotation flexibility and high adjustment space can effectively solve problems of bedside debridement and dressing change for patients with lower limb trauma,provide scientific,simple and operable auxiliary tools for trauma medical staff,improve the comfort of patients and operators,and improve the quality of ward management in emergency trauma ward.

Objective To investigate the occurrence status of reactive aggression and proactive aggression among preschool children in Shanghai,and explore the relationship between children's aggressive behavior and family factors such as parental caregiving and supervision.Methods In this investigation,1 234 preschool children in 10 kindergartens of Shanghai were rated by their teachers and parents using the Aggressive Behavior-Teacher's Checklist,Parent Behavior Inventory (PBI) and a general questionnaire.General information and status of aggressive behavior of the children,environmental characteristics of the families and manners of parental involvement,including supervision and caregiving were described by frequency,percentage,mean value and standard deviation.The relations among family characteristics,parenting styles and children's reactive and proactive aggression were analyzed by t test,variance analysis and multiple linear regression analysis.Results Mean scores of reactive aggression and proactive aggression among preschool children were 2.12 ± 0.93 and 1.39 ± 0.68,respectively.The score of reactive aggression was correlated to the score of proactive aggression significantly (r =0.683,P ＜ 0.01).Correlation analysis showed that significant positive correlation existed between the scores of hostile/coercive parenting practices and reactive aggression (r =0.163,0.123,P ＜ 0.01) ; and significant negative correlation existed between the scores of supportive/participatory parenting practices and reactive and proactive aggression (r =-0.066,-0.076,P ＜ 0.05 or P ＜ 0.01).Linear regression analysis indicated that hostile/coercive parenting practices,boys,younger mothers and lower education level of mothers were risk factors for reactive aggression (P ＜ 0.01),while hostile/coercive parenting practices,boys,younger mothers and lower education level of fathers were risk factors for proactive aggression in preschool children (P ＜ 0.01).Conclusions Parenting practices may be closely related to the occurrence and types of preschool children's aggressive behavior.Therefore family intervention measures should be provided based on the type of aggression and its related risk factors.

Objective To investigate the occurrence status of reactive aggression and proactive aggression among preschool children in Shanghai,and explore the relationship between children's aggressive behavior and family factors such as parental caregiving and supervision.Methods In this investigation,1 234 preschool children in 10 kindergartens of Shanghai were rated by their teachers and parents using the Aggressive Behavior-Teacher's Checklist,Parent Behavior Inventory (PBI) and a general questionnaire.General information and status of aggressive behavior of the children,environmental characteristics of the families and manners of parental involvement,including supervision and caregiving were described by frequency,percentage,mean value and standard deviation.The relations among family characteristics,parenting styles and children's reactive and proactive aggression were analyzed by t test,variance analysis and multiple linear regression analysis.Results Mean scores of reactive aggression and proactive aggression among preschool children were 2.12 ± 0.93 and 1.39 ± 0.68,respectively.The score of reactive aggression was correlated to the score of proactive aggression significantly (r =0.683,P ＜ 0.01).Correlation analysis showed that significant positive correlation existed between the scores of hostile/coercive parenting practices and reactive aggression (r =0.163,0.123,P ＜ 0.01) ; and significant negative correlation existed between the scores of supportive/participatory parenting practices and reactive and proactive aggression (r =-0.066,-0.076,P ＜ 0.05 or P ＜ 0.01).Linear regression analysis indicated that hostile/coercive parenting practices,boys,younger mothers and lower education level of mothers were risk factors for reactive aggression (P ＜ 0.01),while hostile/coercive parenting practices,boys,younger mothers and lower education level of fathers were risk factors for proactive aggression in preschool children (P ＜ 0.01).Conclusions Parenting practices may be closely related to the occurrence and types of preschool children's aggressive behavior.Therefore family intervention measures should be provided based on the type of aggression and its related risk factors.