Objective To identify the effect of health risk behaviors on accidental injury of adoles-cents.Then analyze the strength and approach of the health risk behaviors. Methods Cluster sampling on various stages and strata methods was adopted. The adolescents from grade one to three in junior school students and grade one to three in senior high school students completed the questionaire. A total of 4408 students were surveyed and 4309 samples were valid. Path analysis was used to understand how factors could influence injury incidence. Results The incidence of adolescent injury was 15.53%. Statistical differences were found between genders (male 17.77%,female 13.36%,χ2=15.91, P<0.01),education levels (junior high school 17.36%,senior high school 13.99%,χ2=11.45, P<0.01) and cities ( Beijing 12.97%,Zhongs-han 17.95%,χ2=20.33, P<0.01) . Those who got injured were found with more health risk behaviors. Health risk behavior was the direct influencing factor to injury,as well as a possible risk factor to multiple injuries. Conclusion Health risk behaviors can strongly affect adolescent injury,and can be an indicator. Reducing health risk behaviors is important in adolescent injury prevention.

Twelve healthysubjects and 71 diabetic patients, including 47 cases with diastolic heart failure (DHF), were enrolled into the study. Plasma atrial natiuretic peptide (ANP) and brain natriuretic peptide (BNP) were measured with immunoradiometric assay. The result showed that the plasma levels of ANP and BNP were significantly increased in accordance withthe severity of DHF. The ratio of E/A had significantly negative correlation with the plasma levels of BNP(r=-0.669,P

Objective To determinate the content of Danshensu in Xingkenin g Capsules by HPLC.Methods HPLC with Hypersil ODS2 column was used, MeOH- 1 % acetic acid( 12:88) as a mobile phase and detection wavelength at 280nm.Re sults The linear range of Danshensu was in the range of 0.256～ 1.278 ? g. Th e average recovery of Danshensu was 102.73 % with a RSD of 1.34 % .Conclusio n The method is simple with a good reproducibility and can be used for the qu ality control of Xingkening Capsules.

Objective To establish a method for the determination of patchouli alcohol in Huoxiang Qingwei Tablets by gas chromatography (GC).Methods HP- 5 column( 30 m? 0.32 mm? 0.25 ? m) was used and 5 % crosslinked phenyl polydimethyl siloxane was used as the mobile phase. The increase of column temperature was controlled by programming: the initial temperature was 150 ℃ and maintained for 23 min, and then rose at 8 ℃ /min up to 230 ℃ for 2 min. The injector temperature and the detector temperature both were 280 ℃ .The flow rate was 0.9 mL/min and the injection volume was 1 ? L, split ratio was 5∶ 1.Result A good linearity was obtained in the range of 0.057～ 1.140 mg/mL,r=0.9994. The average recovery was 99.38 % with a RSD of 1.82 % (n=5). Conclusion The method is simple and accurate and can be used for the quality control of Huoxiang Qingwei Tablets.

Objective: To determine the diagnostic value of the concentration of plasma BNP and ANP in patients of type 2 diabetes mellitus with diastolic heart failure(DHF). Methods:12 healthy subjects and 71 diabetic patients were selected into the study. Left ventricular ejection fraction(LVEF) ,mitral annular early diastole (E) and late diastole (A) inflow velocities were measured with Doppler echocardiography .According to the result of ratio of E to A, the DHF patients were subdivided into DHF 1 group:0.8 ≤ E/A

Objective To study the change of diastolic cardiac function in diabetic patients and to determine the diagnostic value of plasma brain natriuretic peptide (BNP) and atria natriuretic peptide (ANP) for diastolic heart failure in patients with type 2 diabetes mellitus.Methods Twelve healthy subjects and seventy-one diabetic patients were included in the study.Plasma BNP and ANP were measured with immunoradiometic assay.Results Plasma levels ofBNP andANP increased significantly with increased severity of diastolic heart dysfunction.The ratio of E/A had significant negative correlation with the plasma levels of BNP (r=0.669,P＜0.001) and ANP (r=0.579,P＜0.01).AUC of ANP and BNP in ROC model was 91.9% and 65.3%,respectively.Conclusions The plasma level of BNP might be a valuable predictor for differential diagnosis of diastolic cardiac function in diabetic patients.

Objective:To study the alteration of cardiac function in diabetic patients and evaluate the relationship between cardiac function and BNP. Methods:83 diabetic patients and 12 healthy subjects were selected into the study. Left ventricular ejection fraction(LVEF) and mitral annular early diastole (E) and late diastole (A) inflow velocities were measured with echocardiography. Plasma BNP were measured with Immnoradiometic assay(IRMA)? Results:According to the result of the echocardiography, the diabetics who have no primary cardiac diseases were subdivided into normal cardiac function group( n =24,28.9%),diastolic dysfunction group( n =47,56.7%), systolic dysfunction group( n =6,7.2%), both diastolic and systolic dysfunction group( n =6,7.2%). More than half of diabetic patients have diastolic dysfunction. The plasma level of BNP had significant negative correlation with LVEF( r = -0.614, P

Objective: To explore the related factors and working way of adolescent injury,and to provide a basis for the effective prevention and intervention of adolescent injury. Methods: The framework of the questionnaire in this study was developed based on the Social Ecology Model. A cross-sectional survey was conducted on a valid sample of 4 309 students from 8 junior high schools and 8 senior high schools in Beijing and Zhongshan city respectively, using stratified random cluster sampling method. Students from grade 7 to grade 12 were invited to participate and investigated with injury prevalence. Results: The incidence of adolescent injury by person and by person-time was 15.53% and 22.49% respectively, and there were differences by sex, age and regions(χ2=15.92，11.45，20.33，P<0.05). The occurrence of adolescent injury was affected by adolescent psychological behavior and social environment through different underlying pathways. The intrapersonal factors and perception of environmental safety showed direct effects on the adolescents’ injuries (effect size was 0.29 and 0.05 respectively, P<0.05). Conclusion Adolescent injury is associated with diverse factors and pathways in a synergistic and complex manner, suggesting that a three-dimensional and diverse strategy should be taken to intervene the injures.

Objective To explore the risk factors of recurrence of chronic subdural hematoma (CSDH) after drilling and drainage,and to explore the cumulative risk of various risk factors in recurrence.Methods A retrospective analysis of 257 patients with CSDH,admitted to and accepted complete drainage in our hospital from January 2010 to December 2015,was performed;234 patients were without recurrence and 23 patients with recurrence.The risk factors of relapse,including age,hypertension,diabetes,hematoma characteristics,preoperative hematoma thickness,preoperative median deviation,hematoma thickness at discharge,midline deviation at discharge and hematoma density,were analyzed.Logistic regression analysis was performed to conform the independent risk factors and cumulative risk of multiple possible risk factors.Results Univariate analysis showed that age,hypertension,diabetes mellitus,preoperative hematoma thickness,preoperative median deviation,hematoma thickness at discharge,midline deviation at discharge and hematoma density were significantly different between the patients without recurrence and patients with recurrence (P＜0.05).Age,diabetes mellitus,preoperative hematoma thickness,and midline shift at discharge were independent risk factors for postoperative drilling recurrence.The cumulative effect of risk factors was that patients with two independent risk factors had a relapse risk of one 4.22-9.50-fold in patients with or without recurrence-independent risk factors,with a risk of recurrence of up to 38.0-fold in patients with three or four independent risk factors.Conclusions The risk factors of recurrence of chronic subdural hematoma after bile duct drainage are age,diabetes mellitus,preoperative hematoma thickness ≥20 mm and midline deviation ≥ 5 mm at discharge.When more independent risk factors are combined,fold increase of cumulative risk of recurrence is noted.

Objective To calculate the standardized cesarean delivery rate by considering the individual characteristics of puerprae, and to evaluate the medical quality of obstetrics in the hospital. Methods Medical records of 69 406 puerprae from January to December in 2016 were collected from 33 tertiary general hospitals in Shanxi province. A logistic regression model was used to construct a maternal risk adjustment model of cesarean delivery, with the area under the ROC curve (AUC) used to evaluate the goodness of fit of the model. Results Of the 69 406 puerprae, 30 881 used caesarean delivery, accounting to 44. 37% . The cesarean section rate difference was statistically significant among those of different age, nationality, conditions upon admission, whether to participate in a clinical pathway, fetus number, birth weight and maternal gestational age, as well as the severity of complications (P< 0. 001). According to the logistic model, those of older age, history of cesarean delivery, twins or triplet births, neonatal overweight, malposition, placenta previa, and those with various pregnancy complications tend to use maternal cesarean section surgery, with a goodness-of-fit of 0. 82. With risk adjusted, the ranking of actual cesarean section rate and standardized cesarean section rate varies among the hospitals. Conclusions With the factor of puerprae factor adjusted, the standardized cesarean delivery rate can eliminate risk factors of the puerprae, it is feasible to scientifically evaluate the cesarean delivery rate of the hospital′s obstetric department.