zhifeng wang

Dr. zhifeng wang


Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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JWjia wang
jia wang
ZWzhifeng wang
zhifeng wang
This study used the Strengths (S), Weaknesses (W), Opportunities (O) and Threats (T) (SWOT) analysis method, drawing on our experience of the response to the 2003 SARS epidemic, the 2019 China Health Statistics Yearbook data, and changes in China’s policy environment for the pneumonia epidemic response relating to the novel coronavirus (COVID-19) infection, to perform a systematic analysis of the COVID-19 epidemic prevention and control strategy S, W, O, and T, with a further analysis of a strategic foundation and to determine a significant and relative strategy. We assessed and formulated strength-opportunity (SO), weakness-opportunity (WO), strength-threat (ST), and weakness-threat (WT) strategies for the prevention and control of the COVID-19 epidemic. We conducted an in-depth analysis and identified the highest-priority policies. These are: reshaping the emergency system (SO1); adding health emergency departments to universities and other institutions (WO2); adjusting the economic structure and strengthening international and domestic linkages (ST2); and strengthening public intervention in responding to public health emergencies (WT1).

27 April 2023 in BMC Medicine
Verified
Journal Article
Open access
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SXShiyao Xu
Shiyao Xu
JLJincheng Li
Jincheng Li
HWHongyuan Wang
Hongyuan Wang
FWFuzhen Wang
Fuzhen Wang
ZYZundong Yin
Zundong Yin
ZWzhifeng wang
zhifeng wang
Background: The two inactivated SARS-CoV-2 vaccines, CoronaVac and BBIBP-CorV, have been widely used to control the COVID-19 pandemic. The influence of multiple factors on inactivated vaccine effectiveness (VE) during long-term use and against variants is not well understood.Methods: We selected published or preprinted articles from PubMed, Embase, Scopus, Web of Science, medRxiv, BioRxiv, and the WHO COVID-19 database by 31 August 2022. We included observational studies that assessed the VE of completed primary series or homologous booster against SARS-CoV-2 infection or severe COVID-19. We used DerSimonian and Laird random-effects models to calculate pooled estimates and conducted multiple meta-regression with an information theoretic approach based on Akaike’s Information Criterion to select the model and identify the factors associated with VE.Results: Fifty-one eligible studies with 151 estimates were included. For prevention of infection, VE associated with study region, variants, and time since vaccination; VE was significantly decreased against Omicron compared to Alpha (P = 0.021), primary series VE was 52.8% (95% CI, 43.3 to 60.7%) against Delta and 16.4% (95% CI, 9.5 to 22.8%) against Omicron, and booster dose VE was 65.2% (95% CI, 48.3 to 76.6%) against Delta and 20.3% (95% CI, 10.5 to 28.0%) against Omicron; primary VE decreased significantly after 180 days (P = 0.022). For the prevention of severe COVID-19, VE associated with vaccine doses, age, study region, variants, study design, and study population type; booster VE increased significantly (P = 0.001) compared to primary; though VE decreased significantly against Gamma (P = 0.034), Delta (P = 0.001), and Omicron (P = 0.001) compared to Alpha, primary and booster VEs were all above 60% against each variant.Conclusions: Inactivated vaccine protection against SARS-CoV-2 infection was moderate, decreased significantly after 6 months following primary vaccination, and was restored by booster vaccination. VE against severe COVID-19 was greatest after boosting and did not decrease over time, sustained for over 6 months after the primary series, and more evidence is needed to assess the duration of booster VE. VE varied by variants, most notably against Omicron. It is necessary to ensure booster vaccination of everyone eligible for SARS-CoV-2 vaccines and continue monitoring virus evolution and VE.Trial registration: PROSPERO, CRD42022353272.

JWjia wang
jia wang
BYBeibei Yuan
Beibei Yuan
ZLZhengmao Li
Zhengmao Li
ZWzhifeng wang
zhifeng wang
To summarize the present status of health emergency management assessment in China, a comprehensive search of Chinese databases for research that explicitly mention health emergency assessment indicators and indicator systems was performed. Studies were evaluated using the Ekman quality assessment tool, and data were extracted with an original extraction form. Sixty-one studies were included. There are many types and methods of health emergency management assessment in China, and the dimensions and the indicators involved are complex. Legal, regulatory, and policy bases for such assessment need to be further strengthened. The relevance of the entire assessment process and its practical application should be enhanced. In the occupational practice, appropriate evaluation methods should be selected according to respective evaluation purposes, evaluation objects, and contents. Laws, regulations, and policies in the evaluation of health emergency management should be improved. Finally, further correlational research on health emergency management evaluation system processes should be explored and improved.

31 May 2018 in BMC Public Health
Verified
Journal Article
Open access
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JHJianlin Hou
Jianlin Hou
ZWzhifeng wang
zhifeng wang
XLXiaoyun Liu
Xiaoyun Liu
YLYouhui Luo
Youhui Luo
SSSabhyta Sabharwal
Sabhyta Sabharwal
QMQingyue Meng
Qingyue Meng
Although China’s modern education for public health was developing over the past 60 years, there is a lack of authoritative statistics and analyses on the nation’s development of education for public health at higher education institutions (HEIs). Few quantitative studies on this topic have been published in domestic and international peer-reviewed journals. To address this knowledge gap, we aimed to use national data to quantitatively analyse the scale, structure, and changes of public health education in China’s HEIs, and to compare the changes of public health education with those of other health science disciplines. This study uses previously unreleased national data provided by the Ministry of Education of China that includes the number of health professional students by school and major. The data, which spans from 1998 to 2012, are descriptively analyzed. The number of HEIs for public health education per 100 million population increased from 7.2 in 1998 to 11.3 in 2012. The total enrolment, number of students, and number of graduates increased at rates of 7.3, 7.4, and 5.8% per year, respectively. The percentage of junior college students dropped drastically from 24.0 to 8.4% from 1998 to 2012. During that same period, the number of undergraduates, master and doctorate students increased. Undergraduates accounted for the majority of public health graduates (63.1%) in 2012, and master and doctorate students increased by 10.0 and 5.1 times, respectively, from 1998 to 2012. The relative percentage of public health enrollment, students, and graduates to all health education disciplines dropped from about 6.0% percent in 1998 to around 2% in 2012. The overall scale of public health education has clearly expanded, though at a slower pace than many other health science disciplines in China. The increase of public health graduates helped to address the previous shortage of public health professionals. Gradually adopting a modern model of education, public health education in China has undergone notable changes that may be informative to other developing countries though it still faces a complex situation in terms of graduates’ adherence to public health, student recruitment, teaching and training, program planning and reform.

16 April 2020 in Human Resources for Health
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Journal Article
Open access
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LZLeilei Zhan
Leilei Zhan
NSNeha Safaya
Neha Safaya
HEHana Erkou
Hana Erkou
LALei An
Lei An
ZWzhifeng wang
zhifeng wang
XXXiao Xu
Xiao Xu
This study compares perspectives on specialized ophthalmic medical institutions, identifies the gaps in property and geographic offerings, and explores the ways that ophthalmic medical institutions can better allocate resources. The results of this research will increase patient’s access to equitable and high-quality ophthalmic care in China. The data for this research was gathered from the Survey of China National Eye Care Capacity and Resource for the year 2015. The paper specified the number, professional level of expertise, and educational background of ophthalmic health personnel. The authors of the paper analyzed and compared the differences in ophthalmic care in public vs. private and urban vs. rural regions in China. Descriptive statistics were used. Of the 395 specialized ophthalmic hospitals surveyed, 332 were private medical institutions (84%), and 63 were public (16%). Of the 26 607 ophthalmic personnel surveyed, working in specialized ophthalmic hospitals, 17 561 were in private hospitals (66%) and 9 046 were in public ones (34%). Furthermore, 22 578 of those personnel worked in urban ophthalmic institutions (85%) and 4 029 worked in rural ones (15%). As for regional differences, 14 090 personnel were located in eastern China (53%), 8 828 in central regions (33%), and 3 689 in the western regions (14%). Public ophthalmic medical institutions still face challenges in providing equitable and widespread care. The availability of well-staffed health centers varies significantly by region. These variations impact resource allocation and directly lead to inequalities and inaccessibility of health services in certain regions of China.

22 August 2018 in Human Resources for Health
Verified
Journal Article
Open access
PDF file
JHJianlin Hou
Jianlin Hou
ZWzhifeng wang
zhifeng wang
YLYouhui Luo
Youhui Luo
JKJoseph C. Kolars
Joseph C. Kolars
QMQingyue Meng
Qingyue Meng
Public institutions have been the major provider of education for health professionals in China for most of the twentieth century. In the 1990s, the Chinese government began to encourage the establishment of private education institutions, which have been steadily increasing in numbers over the past decade. However, there is a lack of authoritative data on these institutions and little has been published in international journals on the current status of private education of health professionals in China. In light of this knowledge gap, we performed a quantitative analysis of private institutions in China that offer higher education of health professionals. Using previously unreleased national data provided by the Ministry of Education of China, we conducted time-series and descriptive analyses to study the scale, structure and educational resources from 1998 to 2012 of private institutions for health professional education. The number of private institutions that educate health professionals increased from two in 1999 to 123 in 2012. Private institutions displayed an average annual growth rate of 44.2% for enrolment, 59.0% for the number of students and 53.3% for the number of graduates. In 2012, nursing, clinical medicine and traditional Chinese medicine had the most students (37.2%, 32.8% and 8.9% respectively), representing 78.9% of all students in these institutions. Ninety-seven private institutions located in the more economically advantaged eastern and central China and only 26 ones were in the less economically advantaged western China, respectively turning out 85.2% and 14.8% of health professional graduates. There were less educational resources, such as the number of faculty members, physical space and assets, at private institutions than at public institutions. Private institutions for the education of health professionals have emerged quickly in China, contributing to the demand for health professionals that exceeds what public institutions are able to offer. At the same time, the imbalance of geographical distribution and poor educational resources of private institutions are of concern. It may be of utmost importance to enhance administration and supervision to better regulate private institutions and their development plans. Future studies may be needed to better examine the effects of private institutions on the production and allocation of health workers.