Objectives: (i) To analyze trends and gaps in evidence of health effects on pollutants and extreme temperatures by evidence mapping; (ii) to conduct a cross-sectional survey on the use of the Grades of Recommendations Assessment Development and Evaluation (GRADE) in systematic reviews or meta-analyses (SR/MAs) of health effects on pollutants and extreme temperatures. Study Design and Setting: PubMed, Embase, the Cochrane Library, Web of Science, and Cumulative Index to Nursing and Allied Health Literature (CINAHL) were searched until July 7, 2022. SR/MAs investigated health effects of pollutants and extreme temperatures were included.Results: Out of 22,658 studies, 312 SR/MAs were included in evidence mapping, and the effects of pollutants on cancer and congenital malformations were new research hotspots. Among 16 SR/MAs involving 108 outcomes that were rated using GRADE, the certainty of evidence was mostly downgraded for inconsistency (50, 42.7%), imprecision (33, 28.2%), and risk of bias (24, 20.5%). In contrast, concentration-response gradient (26, 65.0%) was the main upgrade factor.Conclusion: GRADE is not widely used in SR/MAs of health effects on pollutants and extreme temperatures. The certainty of evidence is generally low, mainly because of the serious inconsistency or imprecision. Use of the GRADE in SR/MAs of health effects on pollutants and extreme temperatures should strengthen.& COPY; 2023 Elsevier Inc. All rights reserved.

Background and Objectives: To review the efforts and progress in promoting quality and transparency of health research in China and to discuss how to improve.Methods: We focused on three different types of health research: clinical trials, systematic reviews, and clinical practice guidelines, and summarized China's progress from their registration, implementation, and reporting stages.Results: In the last 3 decades, China's major works include the following: 1) For registration, the trials and CPGs registries have been set up, and released policies to mandate registration and submission of protocols for trials. 2) For implementation, multiple clinical research and EBM centers have been established. The ResMan platform for data management has been created and required researchers to share results data. 3) For reporting, the Chinese EQUATOR Center has been set up. Translations and extensions of the CONSORT, PRISMA, and RIGHT have been published. 4) For traditional Chinese medicine (TCM), specific guidelines for the registration and reporting of TCM research have been developed.Conclusion: China has made progress in promoting research quality and transparency, especially in research registration and reporting. Nevertheless, more can be done in data management and sharing for research implementation, and good publication practices in TCM.(c) 2022 Elsevier Inc. All rights reserved.

Objective: To describe and record the evolution of EBM in China. Study Design and Setting: We conducted the study following the general methodology of oral history. The interviews were done at Lanzhou University, between 18th and 22 nd April 2019 using pre-defined questions. All interviews were videorecorded. Two investigators extracted and analyzed the information from the interviews independently. Results: One international expert and ten Chinese experts participated in the interviews. After the introduction of EBM in China in the mid-1990s, more than 20 EBM centres have been established. According to the interviewees, Gordon Guyatt, David Sackett and lain Chalmers are the international experts who played the most important role in the development of EBM in China. China has contributed to EBM on the international level by conducting systematic reviews, developing reporting checklists, and introducing the principles of EBM into Traditional Medicine. The Chinese Cochrane Centre and the EBM Centre of Lanzhou University were ranked the top two EBM Centres in China by the interviewees. Conclusion: EBM has been developing in China for nearly a quarter of a century. Many achievements have been reached, however, EBM is still facing many challenges in China, including shortages of funding support and personnel, as well as limited local high-quality evidence. (C) 2021 Elsevier Inc. All rights reserved.

Objective: To share the experience of promoting GRADE in China. Study design and setting: We designed the study and collected data on the following three aspects of the GRADE in China: the key activities related to GRADE, the main achievements of the GRADE, and potential challenges and future opportunities. Results: Three GRADE centres have been established in China since 2011. Seventeen articles of the GRADE working group have been translated and published in Chinese, and 31 articles have been written by Chinese scientists in Chinese to introduce and interpret the GRADE approach so far. More than 50 GRADE workshops and meetings have been held by GRADE centres in China, covering two-thirds of all provinces and autonomous regions of China. The percentages of societies from the Chinese Medical Association (CMA) and the Chinese Medical Doctor Association (CMDA) that used the GRADE system to develop guidelines were 30% and 18%, respectively. Conclusion: Over the past decade, China has made progress in promoting the GRADE system and Chinese GRADE centres have made a significant contribution.

Introduction The adaptation of guidelines is an increasingly used methodology for the efficient development of contextualised recommendations. Nevertheless, there is no specific reporting guidance. The essential Reporting Items of Practice Guidelines in Healthcare (RIGHT) statement could be useful for reporting adapted guidelines, but it does not address all the important aspects of the adaptation process. The objective of our project is to develop an extension of the RIGHT statement for the reporting of adapted guidelines (RIGHT-Ad@pt Checklist). Methods and analysis To develop the RIGHT-Ad@pt Checklist, we will use a multistep process that includes: (1) establishment of a Working Group; (2) generation of an initial checklist based on the RIGHT statement; (3) optimisation of the checklist (an initial assessment of adapted guidelines, semistructured interviews, a Delphi consensus survey, an external review by guideline developers and users and a final assessment of adapted guidelines); and (4) approval of the final checklist. At each step of the process, we will calculate absolute frequencies and proportions, use content analysis to summarise and draw conclusions, discuss the results, draft a report and refine the checklist. Ethics and dissemination We have obtained a waiver of approval from the Clinical Research Ethics Committee at the Hospital de la Santa Creu i Sant Pau (Barcelona, Spain). We will disseminate the RIGHT-Ad@pt Checklist by publishing into a peer-reviewed journal, presenting to relevant stakeholders and translating into different languages. We will continuously seek feedback from stakeholders, surveil new relevant evidence and, if necessary, update the checklist. This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

Evidence-based medicine and clinical practice guidelines have become increasingly salient to the international health care community in the 1990s. Key issues in health policy in this period can be categorised as costs and access to care, quality of and satisfaction with care, accountability for value in health care, and public health and education. This paper presents a brief overview of evidence-based medicine and clinical practice guidelines and describes how they are likely to influence health policy. Evidence-based medicine focuses on the use of the best available clinical (efficacy) evidence to inform decisions about patient care; guidelines are statements systematically developed from efficacy and effectiveness research and clinical consensus for practitioners and patients to use in making decisions about appropriate care under different clinical circumstances. Both fields have developed methods for evaluating and synthesising available evidence about the outcomes of alternative health care interventions. They have clear implications for health policy analysts: greater reliance should be placed on scientific evidence, policy decisions should be derived systematically, and health care decisionmaking must allow for the active participation of health care providers, policy makers, and patients or their advocates. The methods and information generated from evidence-based guidelines efforts are critical inputs into health policy analysis and decisionmaking.