Objective The basic terms of the technical specifications for case-control studies in the field of traditional Chinese medicine (TCM) are formed by expert consensus methods, in order to develop detailed texts of the technical specifications. Methods According to the process of international guidelines, a total of 44 experts participated in the Delphi survey. Results The three rounds of questionnaire response rates were 73.3%, 86.4%, and 86.8%, respectively. The experts' authority coefficients were 0.82, 0.85, and 0.86, respectively; and the expert opinion coordination coefficients were 0.356, 0.349, and 0.422, respectively. Expert enthusiasm, authority, opinion centralization, and degree of coordination were relatively high. There were many opinions raised in the expert consensuses on how to measure TCM syndrome, TCM constitution, the time point of measurement and the selection of new cases. Conclusion The case-control studies in TCM field should pay more attention to the characteristics of TCM. The draft of technical specification involves the study design and reporting, which can improve the methodological and reporting quality of case-control studies.
ObjectiveTo investigate the current situation of domestic registry studies, and to provide basis for future research.MethodsWorld Health Organization (WHO) registration platform, ClinicalTrials.gov registration platform and other registration platforms were searched to collect the registered registration studies in Mainland China from inception to July 31st, 2018. Two researchers collected and collated data, analyzed by descriptive statistical methods, and then python-igraph package in Python 3.5 was used to draw the network diagram.ResultsA total of 247 studies were retrieved, mainly for disease registry and pharmaceutical product registry. Cohort and case-series were the principally study design. The research focused on chronic diseases such as cardiovascular and cerebrovascular diseases, and research sites were based on the economically developed area, for example, Beijing, Shanghai and Guangdong. The network diagram of study design and disease system shows that cohort research design is widely used in the nervous system and circulatory system; the network diagram of the research sites and disease system found that Beijing mainly studied circulatory and nervous system diseases, Shanghai mainly studied circulatory system diseases, and Guangdong relatively studied more on nervous system and urinary system diseases.ConclusionThe increasing number of registry studies in China reflects the importance of long-term outcome assessment of diseases.
在缺乏數據進行 Meta 分析的系統評價中，通常使用替代合成方法，但這些方法卻很少被報道，而模糊的方法闡述可能會導致人們質疑系統評價結果的真實性。無 Meta 分析數據合成（SWiM）報告規范是用于指導采用了替代合成方法評估干預措施效應的系統評價進行清晰報告的規范。本文介紹了 SWiM 規范的研制過程及 9 個 SWiM 報告條目及其相應的解釋與示例。
Objective To investigate the clinical efficacy and safety of hyperthermic intraperitoneal perfusion chemotherapy (HIPC) in treatment of advanced colorectal cancer.Methods The Meta-analysis was applied to analyze 8 randomized controlled quantitative studies published at domestic and abroad. These patients treated by HIPC after radical operation with colorectal cancer were included for the treatment group, and those treated only by radical operation with colorectal cancer for the control group. Relative risk (RR) of outcome variable of 3-year and 5-year survival rate and safety between the two groups were compared. Results There were 8 selected literatures, including 1 501 cases, in which 765 cases for treatment group, and 736 cases for control group. RR of 5-year survival rate of the total patients was 2.39 (95% CI: 1.66-3.45). RR of 3-year survival rate of the total patients was 2.13 (95% CI: 1.45-3.13). The results demonstrated that HIPC could improve 5-year and 3-year survival rate, and sensitivity analysis confirmed the conclusions more reliable. The security was described in 5 literatures, the available information showed smaller potential security issue. Conclusions HIPC after radical operation of advanced colorectal cancer can increase 5-year and 3-year survival rate of patients, improve the prognosis of patients. Whether patients with increased incidence of postoperative complications related to the HIPC is no clear-cut conclusions for lack of related research.