1.Traditional Chinese medicine for recurrent pregnancy loss: A systematic review and network meta-analysis
Zilin LONG ; Houyu ZHAO ; Fengqi LIU ; Meng ZHANG ; Junchang LIU ; Siyan ZHAN ; Feng SUN
Science of Traditional Chinese Medicine 2026;4(1):87-95
Background: Recurrent pregnancy loss undermines the physical and mental health of women. Recent randomized controlled trials have reported some effects of traditional Chinese medicine (TCM); however, whether various TCM methods have different effectiveness remains unclear. Objective: To comprehensively evaluate the efficacy and adverse events of TCM for patients with RPL and to explore whether various TCM methods have different effectiveness. Methods: Ten databases were searched up to May 27, 2024. The risk of bias was assessed using the RoB2 tool. The certainty of the evidence was evaluated using the grading of Recommendations, Assessment, Development, and Evaluation tool. Pairwise and network analyses were conducted using Stata 18.0. Results: A total of 47 randomized controlled trials enrolling 6678 women with RPL were included. Pairwise analysis showed that use of TCM had a significantly lower miscarriage rate (RR 0.50 [95% CI 0.45, 0.55]), lower preterm birth rate (RR 0.81 [95% CI 0.67, 0.98), and lower adverse event rate (RR 0.46 [95% CI 0.37, 0.58]). Moreover, use of TCM was associated with a higher alive-fetus rate (RR 1.21 [95% CI 1.15, 1.26]), live-birth rate (RR 1.20 [95% CI 1.15, 1.25]), and full-term rate (RR 1.37 [95% CI 1.23, 1.53]) compared with nonuse of TCM. Network analysis demonstrated that Bushenshugan combined with conventional Western medicine was ranked the best for the reduction of miscarriage rate. Discussion: Use of TCM is more likely to improve pregnancy outcomes and reduce adverse events compared with nonuse of TCM in patients with RPL. Different TCM methods have differences in reducing the miscarriage rate. The Bushenshugan method might be a potential optimal TCM therapy, but more high-quality evidence is needed to further validate and evaluate the efficacy and safety.
2.Current Status and Challenges of the Development on Rare Disease Multi-Security Mechanisms Driven by Data Intelligence in China
JOURNAL OF RARE DISEASES 2025;4(1):1-6
The major obstacle to optimizing the design of rare disease coverage is the fragmented decision-making process among medical services, pharmaceuticals, and medical insurance departments. There is an urgent need to realize data sharing and digital empowerment, as well as to adopt top-level design and systematic decision-making. It is also crucial to establish mechanisms, facilitated by digital intelligence, for sharing power and responsibilities, and assessing rewards and punishments. Furthermore, there is an urgent need to incorporate the theories of collaborative governance, digital governance, and the full life cycle into the entire process, which includes patient classification, diagnosis and treatment, medical assistance, medication protection, and health insurance fund management for rare diseases. This integration aims to provide theoretical reference for the effective linkage of medical services, pharmaceuticals, and medical insurance, and to improve the efficiency and equity of resource allocation in the public sector.
3.Epidemiological characteristics of febrile seizure among children under 6 years old in Ningbo City from 2015 to 2021
Guangxu LIU ; Liang ZHANG ; Houyu ZHAO ; Siwei DENG ; Junting YANG ; Ning LI ; Rui MA ; Yan HE ; Guozhang XU ; Zhike LIU ; Siyan ZHAN
Journal of Peking University(Health Sciences) 2025;57(3):584-591
Objective:To describe the epidemiological characteristics and changes of febrile seizure(FS)among children under 6 years old in Ningbo City,Zhejiang Province from 2015 to 2021.Methods:Based on the Ningbo Regional Health Information Platform,a dynamic cohort was established using vacci-nation registration information,and the cases of FS were identified by the diagnostic results of Chinese terms or International Classification of Diseases 10th revision(ICD-10)R56.0 code in the electronic medical records.The first visit of FS during the observation period was defined as a new case,and a re-currence case was defined as the case with a visit interval of more than 7 days.The 95%confidence in-terval(CI)of FS incidence density was calculated by the Poisson distribution.Results:From January 2015 to June 2020,there were 1.3 million children under 6 years old in Ningbo,with male accounting for 52.87%.The median follow-up time was 2.83(1.55-4.00)years.During the follow-up period,12 776 new onset cases had FS,with more males than females,with an overall incidence density of 4.34(95%CI:4.27-4.40)/1 000 person-years and a recurrence rate of 21.63%.There was a higher inci-dence density in children who were male,born in Ningbo and of non-mobility.The incidence density of FS was higher in urban areas than in rural and rural-urban fringe areas,and the incidence density was different among districts and counties.The peak density was found in children aged 18-23 months[8.42(95%CI:8.11-8.74)/1 000 person-years].From 2015 to 2019,the incidence density in-creased with calendar year(Ptrend<0.001),and the highest was 5.62(95%CI:5.43-5.81)/1 000 person-years.The incidence density of FS decreased significantly during the period between 2020 and 2021.The incidence density was higher in winter.Conclusion:From 2015 to 2019,the overall inci-dence density of FS in children under 6 years old in Ningbo City presented an increasing trend.More at-tention should be paid to the health education,the improvement of the health maintenance model,the en-hancement of the cognition of FS,the identification and treatment of FS among high-risk population and regions so as to prevent its recurrence and reduce the disease burden during the corona virus disease 2019(COVID-19)epide-mic.
4.Prevalence characteristics of autoimmune thyroid disease in women aged 10-59 years in Qingdao City from 2022 to 2024
Xin CHEN ; Junting YANG ; Jinxin GUO ; Shuya LI ; Zhike LIU ; Yingliang ZHU ; Fengjuan LI ; Siyan ZHAN ; Juanjuan GUO
Journal of Peking University(Health Sciences) 2025;57(3):507-513
Objective:To analyze the characteristics of Hashimoto thyroiditis(HT)and Graves disease(GD),two autoimmune thyroid diseases aged 10-59 in Qingdao City from 2022 to 2024,and to provide scientific basis for making targeted prevention and treatment measures.Methods:A cross-sectional study design was adopted,based on the data of the Regional Health Information Platform in Qingdao,the con-firmed cases of HT and GD from 2022 to 2024 were included,and combined with the data of the seventh population census,the three-year and annual prevalence rates of HT and GD were calculated,and the time trend of annual prevalence was analyzed by Cochran-Armitage trend test.The distribution characte-ristics of HT and GD prevalence in different age groups and regions were analyzed,and Chi-square test was used to compare the differences between the groups.Results:The total number of HT patients among women aged 10-59 in Qingdao City from 2022 to 2024 was 40 362.The proportion of HT patients in 30-34 years old was the highest(19.83%).The proportion of HT patients in Huangdao District was the highest(17.72%).The three-year prevalence of HT was 1 206.53/100 000.In 2022-2024,the annual prevalence of HT increased significantly(P<0.001),from 385.32/100 000 in 2022 to 1 206.32/100 000 in 2024.The three-year prevalence of HT was significantly different in age distribution(P<0.001).The three-year prevalence of HT in 25-29 years(2 354.44/100 000)and 35-39 years(2 022.20/100 000)was higher than that in other age groups,showing a bimodal distribution.There were significant differences in the three-year prevalence of HT in different regions(P<0.001),among which the three-year prevalence of HT in Shinan District was the highest(2 392.90/100 000),followed by Licang Dis-trict(1 492.41/100 000),and Laixi City was the lowest(659.940/100 000).The total number of GD patients was 2 095,among which the proportion of GD patients in the 35-39 age group was the highest(15.42%),and the proportion of GD patients from Jimo District was the highest(12.27%).From 2022 to 2024,the three-year prevalence rate of GD was 62.63/100 000,and the annual prevalence rate of GD showed an increasing trend(P<0.001),from 20.33/100 000 in 2022 to 62.63/100 000 in 2024.There were significant differences in the prevalence of GD by age(P<0.001).The three-year prevalence of GD reached the highest value in the 25-29 age group(98.90/100 000),followed by the 35-39 age group(85.21/100 000),and the lowest in the 10-14 age group(14.43/100 000).In the regional distribution,there were significant differences in the 3-year prevalence of GD(P<0.001).Laoshan District had the highest three-year prevalence of GD(107.58/100 000),followed by Shinan District(97.83/100 000)and Huangdao District(28.92/100 000).Conclusion:The three-year pre-valence of HT and GD in females aged 10-59 years in Qingdao City from 2022 to 2024 is low,but the annual prevalence is on the rise,and the three-year prevalence of HT and GD in females aged 25-39 years is higher than that in other age groups,so it is necessary to strengthen the screening and monitoring of this population.
5.Interpretation of the Guide on Methodological Standards in Pharmacoepidemiology in China(2nd edition)(Ⅲ):comparison of global guidelines
Jinan YAN ; Yunxiao WU ; Xiaolu NIE ; Houyu ZHAO ; Siyan ZHAN ; Feng SUN
Chinese Journal of Pharmacoepidemiology 2025;34(3):241-259
It has been not been updated for nearly 5 years since the Pharmacoepidemiology Professional Committee of the Chinese Pharmaceutical Association released the Guide on Methodological Standards in Pharmacoepidemiology in China(1st edition)in 2019,and an update is urgently needed.This study adopts a systematic review approach to comprehensively search for global pharmacoepidemiology methodological guidelines and analyze their development status.By extracting the frameworks and key elements of the guidelines,the China's guide was compared with other included guidelines,its shortcomings were analysed,and pragmatic and feasible suggestions for improvement in line with China's national conditions,were proposed in order to provide references for updating China's guide.A systematic search was conducted by searching PubMed,Embase,CNKI,WanFang Data and 17 official websites of international academic organizations for pharmacoepidemiology and regulatory agencies from countries or regions including Europe,the United States,Japan,and China,etc.,and relevant guidelines or standards were screened based on predefined inclusion and exclusion criteria,resulting in the inclusion of 33 methodological guidelines or standards for pharmacoepidemiological studies.A qualitative synthesis approach was then employed to extract core elements from the guidelines through thematic categorization and content summarization,followed by a descriptive comparative analysis.The results indicate that the 1st edition of the China's guide provides relatively comprehensive guidance on adverse drug reaction reporting and publication of research findings.However,there are gaps in study protocol development,data analysis during study implementation,study reporting,and specific study scenarios.By integrating and drawing upon the latest international pharmacoepidemiology methodology guidelines while balancing comprehensiveness,practicality,and user-friendliness,this study provides recommendations for updating the China's guide.
6.Revision process of the Guide on Methodological Standards in Pharmacoepidemiology in China(2nd edition)
Jinan YAN ; Yunxiao WU ; Xiaolu NIE ; Houyu ZHAO ; Siyan ZHAN ; Feng SUN
Chinese Journal of Pharmacoepidemiology 2025;34(2):121-135
Pharmacoepidemiology is a scientific discipline that applies epidemiological principles and methods to study the utilization and effects of pharmaceuticals in populations.It plays a crucial role in promoting rational drug use and improving public health outcomes.High-quality pharmacoepidemiological research relies on rigorous methodological frameworks.Chinese Pharmaceutical Association(CPA)has officially initiated the development/revision of the of the Guide on Methodological Standards in Pharmacoepidemiology in China(2nd edition)in 2024.This revision project was supported by the Pharmacoepidemiology Committee of CPA,and was led by the Department of Epidemiology and Biostatistics at Peking University School of Public Health,which provided methodological guidance,in collaboration with multidisciplinary experts from across the country.Building on the experience of the 1st edition's development,the working group conducted a qualitative systematic review,to extract key information from global pharmacoepidemiology-related guidelines,laying the foundation for the development/revision proposals of the 2nd edition.Subsequently,through two rounds of Delphi method expert consultations and qualitative interviews,alongside extensive discussions within the working group,the draft revision of the guideline was created.Finally,through an expert consensus meeting using the Nominal Group Technique(NGT),a consensus was reached,resulting in a methodological guideline that integrates international perspectives with local applicability for pharmacoepidemiological research in China.The 2nd edition consists of 41 entries,including 8 primary entries,20 secondary entries,and 13 tertiary entries.It comprehensively covers key aspects such as study protocol development,study implementation,adverse event reporting,research report writing,and dissemination of study findings.Additionally,it addresses specific application scenarios and topics,as well as the application of artificial intelligence and real-world studies.
7.Guide on Methodological Standards in Pharmacoepidemiology in China(2nd edition)and their series interpretation(1):an overview
Yunxiao WU ; Jinan YAN ; Xiaolu NIE ; Houyu ZHAO ; Siyan ZHAN ; Feng SUN
Chinese Journal of Pharmacoepidemiology 2025;34(1):2-11
Pharmacoepidemiology is an interdisciplinary discipline that applies epidemiological research methods to evaluate the application and effect of drugs within population.Standardizing pharmacoepidemiological research methods is crucial for ensuring the quality of research and promoting the development of the discipline.The Pharmacoepidemiology Professional Committee of Chinese Pharmaceutical Association developed the Guide on Methodological Standards in Pharmacoepidemiology(1st edition),in 2019,but has not been updated in over five years.Other,countries/regions such as Europe,America,Japan and South Korea have made a lot of progress in developing and updating the guidelines.Therefore,the rapid development of pharmacoepidemiology in our country and the growing need to align with international standards make it essential to update the guidelines.The second edition of the guidelines was developed through a process that included systematic reviews,practical surveys,and multidisciplinary collaboration.Compared with the first edition,the updated version has made many important changes in research design,data sources,specific application scenarios and more,and added new contents such as the application of artificial intelligence.The purpose of this paper is to emphasize the necessity of updating the guidelines,selecting important changes and formulating interpretation plans.It aims to provide references for relevant professionals to comprehensively understand and apply the new guidelines,and to promote the standardized development and quality of pharmacoepidemiologic research in our country,further advancing the field.
8.Safety of disialoganglioside targeted therapies in the treatment of pediatric neuroblastoma:a systematic review and Meta-analysis
Ying XING ; Yu PANG ; Siyan ZHAN
Chinese Journal of Pharmacoepidemiology 2025;34(2):191-204
Objective To systematically review the safety of disialoganglioside(GD2)targeted therapies in the treatment of pediatric neuroblastoma(NB).Methods PubMed,Embase,Cochrane Library,CNKI,WanFang Data,SinoMed databases and ClinicalTrials.gov clinical trial registration system were electronically searched to collect clinical studies of GD2-targeted therapies for pediatric NB from inception to November 30,2024.Two reviewers independently screened the literature,extracted data and assessed the risk of bias of the included studies.Meta-analysis was performed by using R 4.3.1 software.Results A total of 21 studies involving 2,438 patients were included.Meta-analysis results showed that the overall incidence(95%CI)of serious adverse drug events(SADEs)in GD2-targeted therapies for pediatric NB was 51.67%(35.43%to 67.92%).The serious fever and alanine aminotransferase(ALT)increase were common with the incidence(95%CI)of 7.80%(0.80%to 18.85%)and 5.10%(2.02%to 10.55%)respectively.The incidences(95%CI)of grade 3 to 5 adverse drug reactions(ADRs):fever 18.81%(8.00%to 29.61%),pain 30.32%(16.21%to 44.44%),hypokalemia 18.96%(6.44%to 31.49%),ALT increased 10.41%(2.96%to 17.86%),hypotension 8.48%(3.78%to 13.18%),anemia 16.62%(5.97%to 27.26%),platelet count decreased 16.46%(5.55%to 27.37%),lymphocyte count decreased 10.42%(0.97%to 26.09%),neutrophil count decreased 13.37%(3.12%to 23.62%).Among the intervention subgroups,the incidences of grade 3 to 5 ADRs were relatively low in dinutuximab β group and GD2-chimeric antigen receptor T cells(GD2 CART)group.Conclusions The incidences of SADEs and grade 3 to 5 ADRs are high in pediatric NB patients receiving GD2-targeted therapy,which should be paid attention to.The safety profile of GD2 targeted therapies under development for pediatric NB are even better than those of GD2 targeted drugs already on the market,especially GD2 CART,which shows good safety potential.
9.Guide on Methodological Standards in Pharmacoepidemiology(2nd edition)and their series interpretation(9):research report standards and results visualization
Jingru CHENG ; Ruina CHEN ; Jiarui LI ; Shaowen TANG ; Feng SUN ; Siyan ZHAN
Chinese Journal of Pharmacoepidemiology 2025;34(9):1004-1016
Standardized research reporting is crucial for the translation of pharmacoepidemiology research findings,and visual reporting can significantly enhance the clarity,understandability,and transparency of research results.Based on the Guide on Methodological Standards in Pharmacoepidemiology(2nd edition),this article systematically explains the key points for writing each component of a research report(including title,abstract,introduction,research methods,research results,discussion and conclusions,acknowledgments,conflict of interest statement,and references).This article also summarizes recognized international and domestic standards for pharmacoepidemiology research reporting,providing a reference for researchers.Furthermore,real-world cases will be used to demonstrate common forms of visualized reports and their interpretation methods.Finally,it further explores strategies for communicating research results.This study aims to provide pharmacoepidemiology researchers with detailed guidance on visually presenting research results and writing high-quality research reports,thereby enhancing the integrity and impact of their research.
10.Large language models empowering pharmacoepidemiology research
Shucheng SI ; Liuliu WU ; Conghui WANG ; Ziming YANG ; Jian DU ; Shengfeng WANG ; Siyan ZHAN
Chinese Journal of Pharmacoepidemiology 2025;34(9):1074-1083
The emergence of artificial intelligence(AI)has had a significant impact on medical research and practice,both in terms of the number of studies and research paradigms,and has become an important tool for the development of pharmacoepidemiology.However,traditional AI has faced many challenges,while facilitating pharmacoepidemiology research,such as complex data processing,difficulty in identifying drug exposures and potential outcomes,and time-consuming and laborious study design and implementation.The rapid development of generative AI,represented by large language models(LLMs),has demonstrated a unique potential to enhance research efficiency,shift research paradigms,and facilitate knowledge discovery.LLMs are equipped with natural language understanding and generation capabilities.Through deep mining of multi-dimensional data resources,LLMs can quickly and accurately extract,analyze,summarize,and present the required information,which can not only help drug discovery,drug repurposing,pharmacovigilance and other pharmacoepidemiological tasks,but also provide powerful support for the whole process of research protocol design,data analysis,result interpretation and paper publication.Driven by LLMs,pharmacoepidemiology research is gradually moving into a new stage based on big data and automated analysis.Of course,LLMs also have problems of data bias,"illusion"of results,and ethical and legal regulation.By strengthening interdisciplinary cooperation,establishing a standardized evaluation system,improving ethical and regulatory guidance,enhancing data quality,strengthening practitioner training and capacity building,and promoting human-machine collaborative research modes,it is expected that the potential of LLMs in pharmacoepidemiology will be fully released,and it will provide a more scientific,rapid,and efficient technological support for drug regulation and public health decision-making.

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