Objective: To learn the trend of death from injury in Fengcheng residents from 2009 to 2017 and predict from 2018 to 2021,in order to provide the basis for injury prevention and control. Methods: All cause of death monitoring data and demographic data of Fengcheng from 2009 to 2017 were collected,injury mortality,standardized mortality and annual change percentage（APC）were calculated,and GM（1,1）was established to predict the injury mortality from 2018 to 2021. Results: From 2009 to 2017,the injury death rate in Fengcheng was 52.68 per 100 000 and the standardized death rate was 46.50 per 100 000. The APC of the total standardized mortality was -5.10%,showing a decreasing trend year by year（P<0.05）. The injury mortality and standardized mortality in males were higher than that in female（both P <0.05）. The highest injury mortality lay in the group aged 65 years and above,which was 108.13 per 100 000. The top five causes of injury death were traffic accident,suiside,poisoning,fall and drowning,their mortality rate were 27.03 per 100 000,7.84 per 100 000,5.62 per 100 000,5.08 per 100 000 and 2.36 per 100 000,respectively. The mortality of traffic accident in males and suicide in females showed a decreasing trend（P<0.05）,while the mortality of fall showed an increasing trend（all P<0.05）. The model of GM（1,1）predicted that the injury mortality from 2018 to 2021 would be 48.00 per 100 000,44.15 per 100 000,40.61 per 100 000 and 37.35 per 100 000,which showed a decreasing trend year by year. Conclusion The injury death rates in Fengcheng dropp year by year from 2009 to 2017 and will probably keep dropping from 2018 to 2021. Men and people aged 65 years or over are at high risk of death from injury,traffic accident and fall are the main causes.

Objective : To study the association between bleeding sites and the quality and quantity of sleep in patients with cerebral hemorrhage. Methods: The hospitalized patients with cerebral hemorrhage in Liaoning Thrombus Hospital from September 2017 to June 2018 were included. Information about gender,age,history of smoking and alcohol,previous history and the sites of cerebral hemorrhage was collected;the levels of blood glucose and lipids were measured;the quantity and quality of sleep were evaluated by Pittsburgh sleep quality index（PSQI）. A logistic regression model was used to analyze the association between cerebral hemorrhage and sleeping status. Results : A total of 249 patients with cerebral hemorrhage were enrolled. The main bleeding sites of the patients were basal ganglia and thalamus,accounting for 59.84% and 22.89%. The proportions of the patients with sleep duration less than 7 hours,7 to 8 hours and more than 8 hours were 23.29%,41.37% and 35.34%. The proportion of the patients with good sleep was 76.31%. The proportions of the patients with or without noon break were 36.55% and 63.45%. The results of multivariate logistic regression analysis showed that taken basal ganglia hemorrhage as the reference group,thalamic hemorrhage was associated with poor sleep quality（OR=2.387,95%CI：1.144-4.985）;lobar hemorrhage was associated with frequent noon break（OR=13.027,95%CI：1.545-109.849）;brain stem hemorrhage was associated with short sleep duration（OR=9.434,95%CI：1.387-64.173）. Conclusion Short sleep duration may be a risk factor for brain stem hemorrhage,poor sleep quality may be a risk factor for thalamic hemorrhage,and frequent siestas may be a risk factor for lobar hemorrhage.

Objective : To learn the awareness of chronic diseases prevention and control and its influencing factors among high school students in regions inhabited by ethnic groups,so as to strengthen the prevention of chronic diseases among adolescents in these regions. Methods: Totally 1 050 high school students in Tuquan County,Hinggan League,Inner Mongolia were selected by cluster sampling method. The general information,family factors,attitude to learning,psychological factors,behavioral styles and awareness of chronic diseases prevention and control were investigated,and the influencing factors for the awareness were analyzed by multivariate logistic regression model. Results: There were 1 001 valid questionnaires recovered,with a response rate of 95.33%. There were 685 Han students,accounting for 68.43%,241 Mongol students,accounting for 24.08%,and 75 students with other ethnic minorities,accounting for 7.49%. The average awareness rate of chronic diseases prevention and control was 53.25%;the awareness rates of hypertension prevention measures,smoking and drinking hazards,food susceptible to aflatoxin pollution and high cholesterol food were high,all more than 70%;while the awareness rates of long-term high lipid hazards,high blood pressure diagnosis standard and diabetes symptoms was low,all less than 40%. There was no significant difference in the awareness rate of chronic diseases prevention and control among different nationalities（P>0.05）. The results of multivariate logistic regression analysis showed that the students who were female（OR=1.309,95%CI：1.008-1.700）,had high achievement（OR=1.509,95%CI：1.055-2.159）,and thought exams were important（OR=1.570,95%CI：1.204-2.046）were more likely to have high awareness,while the students who spent five to less than eight hours a day on screens（OR=0.514,95%CI：0.335-0.789）were less likely to have high awareness. Conclusions The awareness rate of chronic diseases prevention and control of high school students in Tuquan County is 53.25%,and there is no significant difference between Mongol and Han students. Gender,academic performance,attitude to examination and time spent on screens can affect the awareness rate.

Objective:To investigate the sedative effect of remimazolam on ICU elderly patients undergoing mechanical ventilation and its influence on circulatory system.Methods:Using a prospective research approach, 189 ICU elderly patients undergoing mechanical ventilation in Hebei Petro China Central Hospital from October 2021 to June 2023 were selected. The patients were divided into remimazolam group, dexmedetomidine group and propofol group by random number table method with 63 cases in each group. The patients in remimazolam group, dexmedetomidine group and propofol group were sedated with remimazolam, dexmedetomidine and propofol, respectively. The sedation standard time, sedation standard rate, sedation maintenance time and recovery time after drug withdrawal were compared among the three groups. The heart rate, mean arterial pressure (MAP), respiratory rate and pulse oxygen saturation (SpO 2) before medication (T 0) and medication for 15 min (T 1), 30 min (T 2), 1 h (T 3), 6 h (T 4), 12 h (T 5) were recorded. The incidences of bradycardia, hypotension, respiratory depression, body movement and delirium during sedation were recorded. Results:The sedation standard time and recovery time after drug withdrawal in remimazolam group were significantly shorter than those in dexmedetomidine group and propofol group: (22.27 ± 5.31) min vs. (29.45 ± 6.24) and (30.12 ± 5.87) min, (28.66 ± 7.06) min vs. (32.22 ± 6.85) and (34.34 ± 7.24) min, and there were statistical differences ( P<0.05); there were no statistical difference between dexmedetomidine group and propofol group ( P>0.05). The sedation standard rate in remimazolam group and dexmedetomidine group was significantly higher than that in propofol group: 87.43% (661/756) and 83.60% (632/756) vs. 72.49% (548/756), and there was statistical difference ( P<0.016 7); there was no statistical difference between remimazolam group and dexmedetomidine group ( P>0.016 7). There was no statistical difference in sedation maintenance time among the three groups ( P>0.05). There were no statistical difference in T 0 heart rate, MAP, respiratory rate and SpO 2 among the three groups ( P>0.05). The T 1 to T 5 heart rate and MAP in remimazolam group were significantly higher than those in dexmedetomidine group and propofol group, the T 2 to T 5 heart rate and MAP in dexmedetomidine group were significantly lower than those in propofol group, and there were statistical differences ( P<0.05). The T 2 to T 5 respiratory rate in remimazolam group was significantly lower than that in dexmedetomidine group, the T 1 to T 5 respiratory rate in remimazolam group and dexmedetomidine group was significantly higher than that in propofol group, and there were statistical differences ( P<0.05). The T 2 to T 5 SpO 2 in remimazolam group and dexmedetomidine group was significantly higher than that in propofol group, and there was statistical difference ( P<0.05). The incidence of bradycardia in remimazolam group was significantly lower than that in dexmedetomidine group: 7.94% (5/63) vs. 25.40% (16/63), the incidence of hypotension was significantly lower than that in propofol group: 6.35% (4/63) vs. 23.81% (15/63), and there were statistical differences ( P<0.016 7). The incidence of respiratory depression in remimazolam group and dexmedetomidine group was significantly lower than that in propofol group: 4.76% (3/63) and 1.59% (1/63) vs. 22.22% (14/63), and there was statistical difference ( P<0.016 7). There was statistical difference in incidence of delirium among the three groups ( P<0.05), but there was no statistically significant difference in pairwise comparison ( P>0.016 7). There was no statistical difference in the incidence of body movement among the three groups ( P>0.05). Conclusions:The effect of remimazolam sedation in ICU elderly patients undergoing mechanical ventilation is satisfactory, with little influence on circulation and respiratory system and few adverse reactions.