Objective In this study,12-18 years old middle school students in Gansu province as the research object,to study the prevalence and influencing factors of adolescent idiopathic scoliosis(AIS)in Gansu province,to explore the pathogenic factors of AIS,to provide a scientific basis for the precise prevention of adolescent idiopathic scoliosis.Methods The data of 3118middle school students were collected by multi-stage stratified cluster sampling method through medical record report form and on-site screening,Logistic re-gression was used to analyze the influencing factors of AIS among middle school students in Gansu province.Results The results of uni-variate analysis showed that ethnicity,grade level,altitude,city,history of trauma,daily use of electronic devices,homework posture,frequent participation in sports,combination of meat and vegetables in meals,frequency of eating fresh fruits,consistency of shoulder height,symmetry of the back when bending,neck and shoulder pain were related to the detection rate of scoliosis(P＜0.05).The results of multiple correspondence analysis showed that in the screening areas of high school freshmen,sophomores,Lanzhou City,Linxia Hui Autonomous Prefecture,individuals who use electronic products for more than 2hours per day,consume fresh fruits at least once a day,have poor homework posture,neck and shoulder pain,are mainly vegetarians,and frequently do not participate in exercise,exhibit scolio-sis.Conclusion The prevalence of AIS among middle school students in Gansu province is high,which is affected by altitude,grade,city,family history,eating habits,sitting posture,daily outdoor activity time and other factors.

Objective In this study,12-18 years old middle school students in Gansu province as the research object,to study the prevalence and influencing factors of adolescent idiopathic scoliosis(AIS)in Gansu province,to explore the pathogenic factors of AIS,to provide a scientific basis for the precise prevention of adolescent idiopathic scoliosis.Methods The data of 3118middle school students were collected by multi-stage stratified cluster sampling method through medical record report form and on-site screening,Logistic re-gression was used to analyze the influencing factors of AIS among middle school students in Gansu province.Results The results of uni-variate analysis showed that ethnicity,grade level,altitude,city,history of trauma,daily use of electronic devices,homework posture,frequent participation in sports,combination of meat and vegetables in meals,frequency of eating fresh fruits,consistency of shoulder height,symmetry of the back when bending,neck and shoulder pain were related to the detection rate of scoliosis(P＜0.05).The results of multiple correspondence analysis showed that in the screening areas of high school freshmen,sophomores,Lanzhou City,Linxia Hui Autonomous Prefecture,individuals who use electronic products for more than 2hours per day,consume fresh fruits at least once a day,have poor homework posture,neck and shoulder pain,are mainly vegetarians,and frequently do not participate in exercise,exhibit scolio-sis.Conclusion The prevalence of AIS among middle school students in Gansu province is high,which is affected by altitude,grade,city,family history,eating habits,sitting posture,daily outdoor activity time and other factors.

In this paper, the domestic and international demand and development trend of clinical diagnostic radionuclides are analyzed, and the medium and high-energy cyclotrons, adequate and systematic facilities, and preparation techniques required for the production of medical radionuclides based on solid targets are introduced. This paper focuses on the research and development carried out by some important medical institutions and scientific research institutes in China over the years in the aspects of medium and high-energy cyclotrons, beam transmission lines, high-power irradiation target stations and new medical isotope production processes etc. It also looks forward to some new directions for the development of medical radionuclides in China during the 14th Five-Year Plan period.

Objective To retrospectively analyze the implementation of the antimicrobial agents prescription monthly review at the emergency and outpatient departments for the past five years, for evaluation of its action in promoting rational application of antimicrobial drugs. Methods At the baseline investigation stage, 1780 prescriptions on antibiotics in emergency and outpatient department from June 2012 to November 2012 were randomly selected for centralized evaluation. The period of correction and observation falls into two stages. The first stage ranged from December 2012 to February 2015, when the prescription of antibiotics was sampled manually for monthly review. The second stage ranged from March 2015 to June 2017, when a prescription review software for prescription comment was introduced for the sample purpose. The data so acquired were subject to chi-square test and linear regression analysis using Excel 2010 and SPSS 16. 0. Results The rational rate of prescription for antibiotics at the emergency department increased from 80. 56％ of the baseline stage to 99. 47％ of the second stage (166506/167400), scoring a difference of statistical significance (P<0. 001). With intervention of the prescription review software, the percentage of irrational use of antimicrobial agents dropped by 5. 18％ compared to the baseline stage. Conclusions Monthly prescription review on antimicrobial agents at the outpatient and emergency departments could promote the rational use of antimicrobial agents and play an important role in clinical drug safety. Information system and performance assessment contributed to the effect of prescription review.