Evaluation of the reliability and validity of a vaccine hesitancy scale on knowledge, attitude, trust and vaccination environment (KATE-S) in Chinese parents.

OBJECTIVE: To verify the reliability and validity of a vaccine hesitancy scale about knowledge, attitude, trust and vaccination environment (KATE-S) among the Chinese parents. METHODS: A questionnaire survey was conducted by convenience sampling in China using the KATE-S to assess knowledge of vaccines, attitudes towards vaccines, trust in acquired information and vaccination environment and vaccination status of vaccine introduced in immunization program among children. RESULT: A total of 199 valid questionnaires were collected from the parents. Among those, 83 (41.7%) parents accepted all vaccines without hesitancy, 111 (55.8%) parents accepted all but had hesitancy intention, and 5 (2.5%) had hesitancy behaviour of refusing or delaying vaccination. The overall test-retest reliability, split-half reliability and Cronbach's coefficient values were 0.924, 0.885 and 0.823, respectively. The scale-level content validity index (S-CVI) of universal agreement was 0.867, and the average S-CVI was 0.978. Exploratory factor analysis extracted seven common factors from the scale, and the cumulative contribution rate was 56.8%. The correlation coefficients between the items and their dimensions ranged from 0.405 to 0.760, with a calibration success rate of 100% for convergent and discriminant validity. After adjusting for the basic characteristics, the knowledge level of hesitancy intention group and hesitancy behavior group were both lower than accept all group (OR = 0.78, 95% CI: 0.65-0.94; OR = 0.26, 95 %CI: 0.07-0.94). CONCLUSION: The KATE-S has good reliability and validity in Chinese parents and would be considered to expand the sample size and survey areas to obtain more representative results.

Voluntary blood donation among undergraduates in Beijing: status and influencing factors of knowledge, attitude and practice / 中国输血杂志

【Objective】 To explore the status quo and influencing factors of knowledge, attitude and practice of voluntary blood donation among undergraduates in Beijing. 【Methods】 A questionnaire was designed on the basis of literature, using the method of convenience sampling to survey the undergraduates from 39 universities in Beijing. The t-test, analysis of variance and χ2 test were used to compare the differences in knowledge, attitude and practice of voluntary blood donation among different groups, and logistic regression model was performed to analyze the influencing factors. 【Results】 A total of 1 075 valid questionnaires were collected from undergraduates of 39 universities in Beijing. The results showed that the proportion of the participants who had good knowledge about voluntary blood donation was 69.21% (744/1 075). No statistically significant difference was noticed on the scores of voluntary blood donation knowledge between males and females (P>0.05). The scores of voluntary blood donation knowledge of medical students were higher than those of other subjects (P<0.05). The scores of voluntary blood donation knowledge of juniors and above were higher than those of lower grades (P<0.05). The rate of undergraduates participating voluntary blood donation in Beijing was 30.98% (333/1 075). A total of 67.26% (723/1 075) of students had donation intention, 9.49% (102/1 075) didn’t and 23.25% (250/1 075) were not sure. No statistically significant differences in blood donation intention were observed among undergraduates by genders and grades (P>0.05). The rate of medical students’ intention to donate blood was higher than that of other subjects (P<0.05). 【Conclusion】 The rate of voluntary blood donation among undergraduates in Beijing was above the middle level compared with other regions in China, but the practice of voluntary blood donation is far away from the intention. Therefore, it’s necessary to improve the level of knowledge, attitude and practice of undergraduates, especially non-medical college students, so as to improve the rate of voluntary blood donation among the undergraduates in Beijing.

Epidemiological and clinical features of the 2019 novel coronavirus outbreak in China

Our manuscript was based on surveillance cases of COVID-19 identified before January 26, 2020. As of February 20, 2020, the total number of confirmed cases in mainland China has reached 18 times of the number in our manuscript. While the methods and the main conclusions in our original analyses remain solid, we decided to withdraw this preprint for the time being, and will replace it with a more up-to-date version shortly. Should you have any comments or suggestions, please feel free to contact the corresponding author.

Prevalence study on the ultrasonography screening for neural tube defects in the secondary prevention / 中华超声影像学杂志

Objective To explore the utilization and effectiveness of ultrasound screening for neural tube defects (NTDs),so that to provide scientific evidences for the secondary prevention of NTDs.MethodsFour hundred and fifty-nine women who delivered or gestated NTDs babies or fetuses were randomly selected from Shandong Province and Shanxi Province,and the related information was collected with structured questionnaire by trained interviewers.Results Of the 459 cases,the ultrasonography utilization rate was 98.7%,and 6 cases (1.3%) never took examinations by ultrasonography during the whole pregnancy period.The total diagnosis rate of ultrasound screening for NTDs was 85.9%,and those of anencephalus,spina bifida and encephalocele were 96.4%,79.6% and 73.8% respectively (P0.05).Conclusions The detection rates of NTDs and the subtypes by ultrasonography are low at different pregnant periods and in different medical institutions.It is important to increase the utilization rate of ultrasound screening by pregnant women and improve the NTDs diagnostic level of primary health care institutions,so that to improve the efficacy of secondary prevention strategy for NTDs in China.