Objective To investigate the prevalence and risk factors of overweight/obesity and their relationship with dyslipidemia among aerospace professional staff,to provide evidence for more effective health management.Methods Nine hundred eighty aerospace professional staff who took health checkup at our center in 2012 were required to complete a self-report life style questionnaire.Height,body weight and blood lipid profiles of the participants were then measured.Logistic regression was used for data analysis.Results A total of 776 valid questionnaires were finally received.The prevalence of overweight or obesity of the participants were 34.4％ and 10.1％,respectively.Standardized overweight rate was 36.9％ or 36.3％,and standardized obesity rate was 12.3％ or 11.8％,according to Chinese adults' level in 2002 or Beijingers' figure in 2006.Univariate logistic regression showed that age (odds ratio (OR) 2.050,1.666 and 2.164; 95％ confidence interval (CI) 1.490 to 2.820,1.048 to 2.648 and 1.164 to 4.020),gender (OR =0.296,95 ％ CI 0.211 to 0.416),marital status (OR =2.178,95 ％ CI 1.591 to 2.980),cigarette smoking (OR =2.571 and 1.889; 95％ CI 1.061 to 6.229 and 1.341 to 2.660) and alcohol consumption (OR =1.547 and 1.796; 95％ CI0.570 to 4.195 and 1.319 to 2.447) were risk factors of overweight and obesity.In multivariate logistic regression,age (OR =1.562,1.775 and 2.206; 95％ CI 1.029 to 2.372,0.943 to 3.341 and 0.977 to 4.978),female (OR =0.311,95％ CI0.206 to 0.469),marital status (OR =1.591,95％ CI 1.045 to 2.421),meat intake (OR=0.663,95％ CI0.437 to 1.007) and fried food (OR =0.604,95％ CI 0.420 to 0.870) were risk factors of overweight/obesity.The risk of developing hypercholesterolemia,hypertriglyceridemia,low high-density lipoprotein hypercholesterolemia,high lowdensity lipoprotein hypercholesterolemia and hypercholesterolemia were significantly increased in overweight/obese adults.Conclusion Higher prevalence of overweight/obese may alarm the need for aerospace professional staff to initiate body weight control and risk factor prevention,especially for male and married adults.

Objective:To explore the key points and implementation of establishing a whole-process clinical research management system.Methods:Based on the problems in practice, combined with project management experiences, this article analyzed the construction of the whole-process clinical research management system.Results:The establishment of the management system provides a comprehensive and sustainable safeguard for clinical research, as well as the improvement of efficiency and quality of clinical research.Conclusions:The establishment of an effective whole-process management system for clinical research project is a useful exploration of the research service model in China.

Objective:To discuss the scientificity and feasibility of risk-based monitoring strategies in Investigator initiated Trials.Methods:" Guideline for Good Clinical Practice" promulgated by NMPA, " Oversight of Clinical Investigations-a Risk-based Approach to Monitoring" and " A Risk-Based Approach to Monitoring of Clinical Investigations Questions and Answers Guidance for Industry DRAFT GUIDANCE" promulgated by the US FDA and other documents were analyzed, the practical experience of Investigator initiated Trials was also summarized.Results:It was recommended that clinical investigators use risk-based monitoring strategies in Investigator initiated Trials. The main idea of risk-based monitoring is to determine the key process and key data of the study, carry out risk rating on the project, and adopt corresponding monitoring methods according to the risk level when formulating the monitoring plan. At the same time, during the clinical trial development process, the risk and data quality of the research center should be regularly evaluated to grasp the risk changes of different centers. In accordance with trends, adjust the method, content and frequency of monitoring.Conclusions:To apply risk-based monitoring strategies in Investigator initiated Trials is scientificity and feasibility. Risk based monitoring can meet the data quality requirements of clinical trials, without affecting the analysis results of the main outcomes, and can further improve the efficiency and effectiveness of monitoring.

Objective:Discuss the problems of multi-center pharmaceutical clinical trial which initiated by investigator (IIT), providing references for developing study management strategies.Methods:By analyzing the site recruitment, academic and ethical review, study contract, study training, quality control, influencing factors of subject enrollment, proposed management strategies of multi-center pharmaceutical clinical study which initiated by investigator.Results:While conducting multi-center pharmaceutical clinical study initiated by investigator, the study experiences, study team, hospital equipment, and the internal process of hospitals are the factors which ensure the progress and quality of clinical study. Most of the sites have no clear statement of scientific review, but most of the high-level hospitals do not use the ethical review results of the head hospitals, the ethics must be reviewed repeatedly; Contract also has different requirements due to different management departments. During the preparation and implement of IIT, the investigators should undergo a rigorous training which is a key element to ensure the quality of the study. Research quality and progress restrict each other and are affected by many factors, detailed quality control measures should be developed, training and inspection, and the cooperation of project management and data management, also with discover the data problems of sites and communicate with investigators timely to ensure the improvement measures are implemented.Conclusions:There are many factors have impact on study progress and quality of multi-center pharmaceutical clinical trial of IIT. Before conducting research, protocols should be developed scientifically, and fully assessing its feasibility, screening study sites strictly, shorten the time of ethical review and contract preparation. Study training, inspection, data management, risk management and document management should be implement strictly, and make full use of information platforms and means, improve management efficiency and IIT progress and quality.

Objective:To summarize the existing problems in the follow-up management of the clinical research project on cerebrovascular diseases at the National Clinical Research Center for Neurological Diseases, Affiliated Beijing Tiantan Hospital, Capital Medical University, and propose solutions and strategies to improve the level of follow-up management in clinical research, this study provided a reference basis.Methods:A comprehensive quality control system was established based on the follow-up management platform, data collection platform, quality control platform, and project management platform.Results:Strategies were proposed for key points in each stage of clinical research follow-up, quality control of the follow-up process, and follow-up progress. Furthermore, a follow-up assistant software management system was established.Conclusions:The follow-up management platform established by this study can timely address the issues encountered during follow-up, help standardize the follow-up management of clinical research, improve the follow-up rate, and ensure the quality of follow-up data.