Objective To compare with the characteristics of different demographic and blood donation behaviors of the first blood donors and the repeated blood donors,to analyze the related factors influencing the repeated blood donation behavior,to provide the evidence to develop the recall strategy for the retention of the first-time donors strategies.Methods Use methods such as the composition ratio of descriptive analysis,and logistic regression analysis,Retrospectively analyzed the data of 3 226 571 cases of the whole blood donors in Zhejiang province from 2006 to 2015.from BIS2.0 Results ZheJiang repeated blood donors in 2006-2015 is accounted for 30.8％,men (57.8％),the proportion of aged 25 above is higher than the first blood donors;71.7％ of men in the repeated blood donors are 60-79 kg,52.2％ of women repeated blood donors are 50 to 59 kg;40％ of the repeat donors blood for the first time donate 400 mL;71.6％ of the repeated blood donors to donate again in 0.5-2 years,and of these,40.8％ back in 0.5-1 year.Conclusion The main factors on the demographic aspects that influence the repeated blood donation is occupation,cultural degree,the quantity of blood donation for the first time.The characteristics of the precise recall people are as follows:Age 26 to 45 years old,stable career,donate 400 mL for the first-time,weight 70-89 kg of male,weight 55 kg above of women.The better recall intervention Interval is preferred to 0.5-2 years,and 0.5-1 year is the best.

In October 2016, the CPC Central Committee and State Council issued the outline of Healthy China 2030 Plan and put forward two main principles, namely integrating health into all policies (HiAP), and adhering to co-construction and co-sharing and mobilizing the whole society to participate.Based on this view, after analyzing the main contradictions in the social governance of China's health field, this paper points out that the synergistic design of social governance and the common governance by the whole society are the key issues to the implementation of China's health policy.This paper attempts to build a health-centered social governance mechanism that puts forward the focus on opening up the channels for citizens to participate in health policy, the formation of a unified health common value, the in-depth exploration of establishing community health services model that integrates medical resources with pension resources together to participate in the building of healthy China.

Objective: To investigate the awareness of Internet based sex education and associated among middle school students, and to provide scientific basis to improve sex education using online resources. Methods: By using stratified cluster random sampling method, 449 students from 8 middle schools in Zhejiang Province were investigated with a self designed questionnaire by Chi square test, Logistic regression, and Importance Performance Analysis (IPA). Results: The awareness of Internet based sex education was 66.59%(299), among which 17.15%(77) chose "WeChat", 7.35%(33) chose "sex education website", and 42.09%(189) chose"video platform" as the primary resources of online sex education, respectively. In the sexual health literacy of middle school students, the correct rate in sexual safety and sexual assault was higher than 40%, with STD transmission and prevention higher than 70%. The correct rate was more than 80% when it came to sexual physiology and sexual development. Logistic regression analysis showed that higher score of sexual health literacy was associated with higher awareness of Internet based sex education ( OR =1.06, 95% CI =1.01-1.11, P <0.05). According to the IPA, the teaching effect and content in area A (the dominant area) had higher scores of importance and satisfaction.The funniness of content in area B (retention area) had a lower importance score and a higher satisfaction score. The practicality and interactivity in area C (opportunity area) had low scores of importance and satisfaction. The curriculum model in area D (improvement area) scored higher in importance and lower in satisfaction. Conclusion The awareness of Internet based sex education needs to be improved among middle school students. Efforts should be made to improve sexual health literacy. Online platforms providing sex education should focus on improving the relevant course model, strengthening the practicability and interactivity of the course, and continue to maintain the advantage of teaching effect, teaching content and interesting aspects of the course.