Objectives To analyze the effect of improved oven for defluorination in coal-burning endemic fluorosis areas in China, and to provide evidence for the prevention and control of fluorosis. Methods Electronic databases including CNKI, CBM, VIP and CDMD-D (1989 to 2005), were searched. We also checked the reference lists of relevant articles. We selected relevant articles according to the predefined inclusion and exclusion criteria. The methodological quality was assessed . Data on room heat preservation and the effect of improved oven for defluorination were collected in the surveillance spots of Three Gorges Reservoir. Correlation analyses were conducted between the improved oven and its effect parameters. Results Twelve articles of low quality met the selection criteria, of which 9 were graded C and 3 were graded D in terms of the methodological quality. A negative correlation was found between the decreasing rate of normal oven use and the decreasing rate of dental fluorosis as well as of urine fluorine (Pearson correlation coefficient r = – 0.87, – 0.63, Plt;0.01, lt;0.05, respectively). Analysis also revealed a positive correlation between room heat preservation and the decreasing rate of dental fluorosis as well as of normal oven use (the two Spearman correlation coefficients and P values were the same: r = –1.00, Plt;0.01). Conclusion High-quality studies on the effect of improved oven for defluorination in China are not available. Based on the current evidence, the improved oven for defluorination and the correct use, maintenance and house rebuilding for heat preservation may help to prevent fluorosis.
ObjectiveTo seek the evidencebased medicine (EBM) evidences of curative effects of intravitreous injection with triamcinolone acetonide (TA) for macular edema.MethodsAll articles of intravitreous injection TA for macular edema published in English or Chinese were picked up from databases of MEDLINE and CNKI and then evaluated according to EBM standard. The data in accord with research standard were selected by using excluding and including criteria, and classified according to the appraisal standard of clinical therapeutic documents. ResultsIn the selected papers, none in gradeⅠevidence; 1 in gradeⅡevidence; 7 in grade Ⅲ evidence; 24 in grade Ⅳ evidence; and 19 in gradeⅤevidence. Forty-two papers reported that intravitreous injection with TA had significant effect for macular edema within 3 months, and the improvement of visual acuity was recorded in these papers. Regression of macular edema was recorded in 23 papers. Among 20 papers, side-effect was found in 93 eyes (31.41%) and the serious sideeffect in 4 eyes (1.35%).ConclusionsIntravitreous injection with TA has some curative effects for macular edema in short term, but the quality of current study has not been encouraging. There are no grade I document and lack of the study of validity in long term and essentiality and validity of retreatment. The special attention should be payed on the increasing persistency of efficacy and preventing the serious side-effects in the future investigation.(Chin J Ocul Fundus Dis, 2005,21:220-223)
The comparative diagnostic test accuracy (CDTA) study is an important part of diagnostic test accuracy, which aims to compare the accuracy of two or more index tests in the same study. With the development of CDTA studies and the methodology of systematic reviews, the number of CDTA systematic reviews has grown year by year and has provided evidence to support clinical decision-making. Compared with systematic review of single diagnostic test accuracy, the CDTA systematic review has its own unique features, especially in data extraction, risk of bias, and statistical analysis. This paper introduced the steps and precautions for writing a CDTA systematic review to provide references for CDTA systematic reviewers.
As one of the most sophisticated research methods of evidence-based medicine, systematic review is an activity of collecting, arranging and analyzing medical information. The methodological characteristics of systematic review reflect the value orientation of this activity. By analyzing and summarizing these characteristics, this paper points that the process of systematic review reflects the value orientation of attaching importance to obtaining universal information sources, treating individual information in an add-weight way, discretion in interpreting results and updating of time-limited information in medical information activities.
Every country has its own clinical guideline to standardize medical care, and China is developing guidehnes too. Viewing the guidehne＇s usage in the world over many years, we find that it hasn＇t achieved good effect. The development of evidence-based medicine brings a primal change to guideline development. The evidence-based clinical guidehnes are arising in the world. We summarized the principle of developing evidence-based guideline according to the experience of Scotland to provide reference for domestic peers.
Objective Based on the acquirable and optimized evidences at present, to explore the challenge and countermeasures for the development of nursing discipline in China, and to provide suggestions for promoting the construction of nursing discipline, platform, and talent team. Methods The study materials were searched in the following electronic databases including PubMed, EMbase, Web of Science, CNKI, VIP and CBM, as well as in the official websites of World Health Organization (WHO), International Council of Nurses (ICN), World Bank, the Ministry of Health (MOH) and the Ministry of Education (MOE) of China, and the domestic universities, colleges or technical secondary schools. Then the statistical analysis was conducted using SPSS 13.0 and Microsoft Excel software. Results a) By 2012, there were 855 nursing schools, 38 212 nursing undergraduates enrolled in universities, and 130 837 nursing students enrolled in junior colleges and senior vocational schools; b) The doctor-to-nurse ratio was 1 to 0.9 in 2010. The actual demand for doctors was 2.6 million, and there were still lack of 346 000 nurses; c) The age of nurses younger than 35 years old accounted for 50%. Those with primary professional title accounted for 64% to 69%, while less than 2.5% with advanced professional title; d) The training cost for a doctor and nurse/midwife in China only accounted for 2/5 of that in India and 1/5 to 1/4 in the sub-Sahara Africa; and e) To date, only 30.1% of disaster nursing studies in China provided research data, 30.6% were clinical experience and 38.3% were review. Conclusion Education and health systems need to be extensively reformed. It is necessary to train nursing students with core competencies using transformative learning. It is necessary to update textbooks and teaching methods, and funding should be appropriately increased. Nursing should cooperate with other disciplines, and apply evidence-based nursing methods to improve the quality of healthcare services and patient satisfaction.
Human society has entered the age of artificial intelligence(AI). Medical practice and education are undergoing profound changes. The government strongly advocates the application of AI in the field of education and it has been incorporated into the national strategy. The integration of medical education and AI technology is changing the paradigm of modern medical education. This paper introduces the current application status of AI in medical education, and analyzes the existing problems and proposes corresponding resolutions, so as to lay a foundation for promoting the integration of medical education and AI.
Evidence-based research in traditional Chinese medicine (TCM) has made many important achievements and promoted the modernization and internationalization of TCM. The ability to produce research evidence to guide clinical practice in an emergency treatment situation is a major test of the development of evidence-based Chinese medicine (EBCM) when emerging infectious diseases outbreaks. Along with the development of EBCM, TCM has experienced emerging infectious disease events such as atypical pneumonia (SARS), influenza A (HIN1), and corona virus disease 2019 (COVID-19), and the ability of TCM to conduct clinical research in emergency treatment work has been continuously improved. This article provides an overview of the clinical research conducted in TCM to resist emerging infectious diseases in the past, focusing on the clinical research results obtained in the present time of COVID-19 rescue and treatment, and discusses the role of EBCM development to enhance the clinical research capacity of TCM in emerging infectious diseases.
Objective We searched the Cochrane Library（Issue 3, 2005 ）to identity evidence related to palliative treatment. We found that Opioids are effective for the palliation of breathlessness in terminal illness. Oral Morphine and hydromorphone is effective for cancer pain. Radiotherapy and Bisphosphonates can relief pain secondary to bone metastases. Corticosteroids can resolve malignant bowel obstruction in advanced gynaecological and gastrointestinal cancer.