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  • 简介:Cardiovasculardisease(CVD)isthenumberonecauseofmortalityworld-wideandplacesahighmedicalandsocioeconomicburdenondevelopingcountries.OurunderstandingofCVDanditsevolutionoverthelast100yearshasalteredconsiderably.ReasonsfortheincreasedrateofCVDinthedevelopingworldincluderapidurbanizationandthedemographicshiftknownasthemodernepidemiologictransition.ThecaseforinterventionisbasedonbothmajorhumanandeconomicimpactsofCVD.Ithasbeenestimatedthatcost-effectiveinterventionsindevelopingcountrieswithahighburdenofCVDcouldresultinaprojected24millionlivessaved.ThisreductioninCVDmortalitycouldreduceeconomiccostsby$8billion.Approachestointerventioninclude:1)cardiovascularhealthpromotionandCVDpreventionand2)actionplansadvocatedbytheWorldHealthOrganization.

  • 标签: GLOBAL HEALTH CARDIOLOGY CARDIOVASCULAR DISEASE URBANIZATION
  • 简介:AbstractBackground:Pancreatitis is a common disease of the digestive system. Acute pancreatitis is one of the most common reasons for gastrointestinal hospital admission, and chronic pancreatitis significantly reduces quality of life. However, national epidemiological data on pancreatitis in China are lacking. This study aimed to quantify the disease burden of pancreatitis in China from 1990 to 2019.Methods:This study was based on the Global Burden of Disease Study 2019 dataset. Age-standardized rates of incidence (ASIR), prevalence (ASPR), mortality (ASMR), and disability-adjusted life years (DALYs) were used to describe the disease burden of pancreatitis, and estimated annual percentage change (EAPC) was used to indicate the average change in age-standardized rates. We also described the trend of pancreatitis-related mortality and DALYs, which are attributable to alcohol use by age and sex.Results:From 1990 to 2019, the ASIR, ASPR, ASMR, and age-standardized DALYs of pancreatitis in China decreased by 10.90, 1.50, 0.49, and 15.54 per 100,000, respectively, with EAPCs of -1.35 (95% uncertainty interval [UI]: -1.67, -1.02) and -0.37 (95% UI: -0.43, -0.31), -2.01 (95% UI: -2.07, -1.94) and -2.32 (95% UI: -2.37, -2.28), respectively. Recently, the numbers of incident and prevalent cases have risen, with estimates of 380,018 (95% UI: 308,669-462,767) and 493,765 (95% UI: 416,705-578,675), respectively, in 2019. Among men, the disease burden of pancreatitis was more severe than among women, and with variances in the distribution among different age groups. Age-standardized DALYs caused by alcohol-related pancreatitis have gradually worsened in the past decade, accounting for 34.09% of the total in 2019.Conclusions:The disease burden of pancreatitis in China has declined in the past 30 years, but the exacerbation of population aging poses a challenge to prevention and control of pancreatitis. Alcohol use has gradually become an important factor in the disease burden of pancreatitis in recent years.

  • 标签: Alcohol use Global disease burden Incidence Mortality DALYs Pancreatitis China
  • 简介:AbstractBackground:Hepatitis B is a viral infection that attacks the liver and can cause both potentially life-threatening acute and chronic liver disease. China has the world’s largest burden of hepatitis B and is considered to be a major contributor toward the goal of World Health Organization (WHO) of eliminating hepatitis B virus (HBV) as a global health threat by 2030. This study aimed to analyze data from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) to determine the trends in mortality of liver disease due to hepatitis B in China between 1990 and 2019 and the gap with the WHO’s goal.Methods:Annual deaths and age-standardized mortality rates (ASMRs) of liver disease due to hepatitis B in China between 1990 and 2019 were collected from GBD 2019. We calculated the percentage changes in deaths and estimated annual percentage changes (EAPCs) of ASMRs of liver disease due to hepatitis B.Results:In China, deaths of total liver disease due to hepatitis B decreased by 29.13% from 229 thousand in 2016 to 162 thousand in 2019, and ASMR decreased by an average of 4.92% (95% confidence interval [CI]: 4.45–5.39%) per year in this period. For the spectrum of liver disease due to hepatitis B, deaths decreased by 74.83%, 34.71%, and 23.34% for acute hepatitis, cirrhosis and other chronic liver diseases, and liver cancer from 1990 to 2019, respectively, and ASMRs of acute hepatitis (EAPC = –7.63; 95% CI: –8.25, –7.00), cirrhosis and other chronic liver diseases (EAPC= –4.15; 95% CI: –4.66, –3.65), and liver cancer (EAPC = –5.17; 95% CI: –6.00, –4.33) decreased between 1990 and 2019. The proportions of older adults aged ≥70 years among all deaths of the spectrum of liver disease due to hepatitis B increased from 1990 to 2019. Deaths of liver cancer due to hepatitis B increased by 7.05% from 2015 to 2019.Conclusions:Although a favorable trend in the mortality of liver disease due to hepatitis B was observed between 1990 and 2019, China still faces challenges in achieving the WHO’s goal of eliminating HBV as a public threat by 2030. Therefore, efforts to increase the coverage of diagnosis and treatment of liver disease due to hepatitis B, especially of liver cancer due to hepatitis B, are warranted in China.

  • 标签: Hepatitis B Acute hepatitis B Chronic liver disease Liver cirrhosis Liver neoplasms Global Burden of Disease Global Health China
  • 简介:AbstractBackground:Non-transport unintentional injuries (NTUIs) are major public concerns, especially among children and adolescents in low- and middle-income countries. With environmental and cognitive changes, a recent systematic description of global trends and regional differences concerning NTUIs is urgently needed for the global agenda of relevant policy-making and intervention target findings.Methods:We used mortality, population, and socio-demographic-index (SDI) data from Global Burden of Disease 2019 to analyze the trends of NTUIs mortality. We applied the slope index of inequality (SII) and relative index of inequality (RII) to measure the absolute and relative inequality between countries and territories. The concentration curve and concentration index (CI) were also used to measure the inequality. We conducted a sensitivity analysis to make our findings credible.Results:In 2019, there were 205,000 deaths due to NTUIs among children and adolescents aged 5 to 24 years, which decreased from 375,000 in 1990. In 2019, the age-standardized mortality rate (ASMR) was 8.13 per 100,000, ranging from the lowest in the Netherlands (0.90 per 100,000) to the highest in the Solomon Islands (29.34 per 100,000). The low-middle SDI group had the highest ASMR of NTUIs, while the low SDI group had the slowest decrease. After excluding the death caused by "exposure to forces of nature" and "other unintentional injuries" , drowning accounted for the most deaths in almost every SDI group, gender, and age group, but the major causes of death varied in different subgroups. For example, animal contact was a major cause in low and low-middle SDI groups but less in high SDI groups, while high and high-middle SDI groups had a higher proportion of deaths for foreign body and poisonings. The SII showed a declining trend, but the RII and CI did not, which might indicate that inequality was persistent. Similar results were found in the sensitivity analysis.Conclusions:Despite the declining trend of the mortality rate and the narrowing gap between countries, there were still a large number of children and adolescents dying from NTUIs, and those experiencing social-economic disadvantages remained at high mortality. Embedding the prevention of NTUIs into sustainable development goals might contribute to the progress of reducing death and inequalities, which ensures that no one is left behind.

  • 标签: Children and adolescents Non-transport unintentional injuries Socio-demographic-index Inequality analysis Foreign body Poisoning Global Burden of Disease Cause of death Developing countries Drowning
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  • 简介:AbstractBackground:China and the United States (US) ranked first and third in terms of new liver cancer cases and deaths globally in 2020. Therefore, a comprehensive assessment of trends in the incidence of primary liver cancer with four major etiological factors between China and the US during the past 30 years with age-period-cohort (APC) analyses is warranted.Methods:Data were obtained from the Global Burden of Disease 2019, and period/cohort relative risks were estimated by APC modeling from 1990 to 2019.Results:In 2019, there were 211,000 new liver cancer cases in China and 28,000 in the US, accounting for 39.4% and 5.2% of global liver cancer cases, respectively. For China, the age-standardized incidence rate (ASIR) consecutively decreased before 2005 but increased slightly since then, whereas the ASIR continuously increased in the US. Among the four etiological factors of liver cancer, the fastest reduction in incidence was observed in hepatitis B virus-related liver cancer among Chinese women, and the fastest increase was in nonalcoholic steatosis hepatitis (NASH)-related liver cancer among American men. The greatest reduction in the incidence of liver cancer was observed at the age of 53 years in Chinese men (-5.2%/year) and 33 years in Chinese women (-6.6%/year), while it peaked at 58 years old in both American men and women (4.5%/year vs. 2.8%/year). Furthermore, the period risks of alcohol- and NASH-related liver cancer among Chinese men have been elevated since 2013. Simultaneously, leveled-off period risks were observed in hepatitis C viral-related liver cancer in both American men and women.Conclusions:Currently, both viral and lifestyle factors have been and will continue to play an important role in the time trends of liver cancer in both countries. More tailored and efficient preventive strategies should be designed to target both viral and lifestyle factors to prevent and control liver cancer.

  • 标签: Alcohol use-related liver cancer China Global Burden of Disease Hepatitis Hepatitis B virus Hepatitis C Incidence Liver neoplasms Life Style Middle aged Non-alcoholic fatty liver disease United States
  • 简介:AbstractBackground:Despite almost two decades of well-funded and comprehensive response efforts by the Chinese Government, human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) remains a major problem in China. Yet, few studies have recently examined long-term trends in HIV/AIDS prevalence, incidence, and mortality at the national level. This study aimed to determine the prevalence, incidence, and mortality trends for HIV/AIDS over the past 28 years in China.Methods:We conducted a descriptive, epidemiological, secondary analysis of the Global Burden of Diseases, Injuries, and Risk Factors Study 2017 data. To evaluate trends in prevalence, incidence, and mortality over the study period from 1990 to 2017, we calculated values for annual percentage change (APC) and corresponding 95% confidence intervals (CIs) using joinpoint regression analysis.Results:A significant increase in HIV/AIDS prevalence was observed for 1990 to 2009 (APC: 10.7; 95% CI: 10.4, 11.0; P < 0.001), and then remained stable for 2009 to 2017 (APC: 0.7; 95% CI: -0.3, 1.7; P = 0.1). A significant increase in HIV incidence was also observed for 1990 to 2005 (APC: 13.0; 95% CI: 12.6, 13.4; P < 0.001), and then a significant decrease was detected for 2005 to 2017 (APC: -6.5; 95% CI: -7.0, -6.1; P < 0.001). A significant increase in AIDS-related mortality rate was detected for 1990 to 2004 (APC: 10.3; 95% CI: 9.3, 11.3; P < 0.001), followed by a period of stability for 2004 to 2013 (APC: 1.3; 95% CI: -0.7, 3.3; P = 0.2), and then another significant increase for 2013 to 2017 (APC: 15.3; 95% CI: 8.7, 22.2; P < 0.001).Conclusions:Although prevalence has stabilized and incidence has declined, AIDS-related mortality has risen sharply in recent years. These findings suggest more must be done to bring people into treatment earlier, retain them in treatment more effectively, actively seek to reenter them in treatment if they dropout, and improve the quality of treatment and care regimens.

  • 标签: Prevalence Incidence Mortality HIV Trend China Acquired immunodeficiency syndrome
  • 作者: Liao Yi-Xuan Chen Ya-Hong
  • 学科: 医药卫生 >
  • 创建时间:2020-09-10
  • 出处:《中华医学杂志(英文版)》 2020年第17期
  • 机构:Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing 100191, China; Department of Pulmonary and Critical Care Medicine, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, Chi
  • 简介:AbstractThe Global Initiative for Chronic Obstructive Lung Disease (GOLD) has been changing for nearly 20 years. GOLD has moved from single assessment using spirometry to a more comprehensive assessment of chronic obstructive pulmonary disease using spirometry, symptoms and exacerbation history. And subsequently, a new assessment system for chronic obstructive pulmonary disease separated spirometric grades from the old assessment system, and classified patients only according to their symptoms and history of exacerbation. The distribution, clinical characteristics, treatment, and prognosis of the new subgroups were different from the old ones. In this review, we will present a brief profile of changes made to the disease assessment method of GOLD, based on the relevant existing literature.

  • 标签: Chronic obstructive pulmonary disease Global Initiative for Chronic Obstructive Lung Disease Disease assessment method
  • 简介:AbstractBackground:Cancer is one of the leading causes of death globally, but its burden is not uniform. GLOBOCAN 2020 has newly updated the estimates of cancer burden. This study summarizes the most recent changing profiles of cancer burden worldwide and in China and compares the cancer data of China with those of other regions.Methods:We conducted a descriptive secondary analysis of the GLOBOCAN 2020 data. To depict the changing global profile of the leading cancer types in 2020 compared with 2018, we extracted the numbers of cases and deaths in 2018 from GLOBOCAN 2018. We also obtained cancer incidence and mortality from the 2015 National Cancer Registry Report in China when sorting the leading cancer types by new cases and deaths. For the leading cancer types according to sex in China, we summarized the estimated numbers of incidence and mortality, and calculated China’s percentage of the global new cases and deaths.Results:Breast cancer displaced lung cancer to become the most leading diagnosed cancer worldwide in 2020. Lung, liver, stomach, breast, and colon cancers were the top five leading causes of cancer-related death, among which liver cancer changed from the third-highest cancer mortality in 2018 to the second-highest in 2020. China accounted for 24% of newly diagnosed cases and 30% of the cancer-related deaths worldwide in 2020. Among the 185 countries included in the database, China’s age-standardized incidence rate (204.8 per 100,000) ranked 65th and the age-standardized mortality rate (129.4 per 100,000) ranked 13th. The two rates were above the global average. Lung cancer remained the most common cancer type and the leading cause of cancer death in China. However, breast cancer became the most frequent cancer type among women if the incidence was stratified by sex. Incidences of colorectal cancer and breast cancer increased rapidly. The leading causes of cancer death varied minimally in ranking from 2015 to 2020 in China. Gastrointestinal cancers, including stomach, colorectal, liver, and esophageal cancers, contributed to a massive burden of cancer for both sexes.Conclusions:The burden of breast cancer is increasing globally. China is undergoing cancer transition with an increasing burden of lung cancer, gastrointestinal cancer, and breast cancers. The mortality rate of cancer in China is high. Comprehensive strategies are urgently needed to target China’s changing profiles of the cancer burden.

  • 标签: Cancer incidence Cancer mortality Changing profile China GLOBOCAN 2020 Worldwide
  • 简介:AbstractBackground:Regulated upon activation, normal T-cell expressed, and secreted (RANTES) is a chemokine actively involved in the initiation and progression of atherosclerosis (AS), which is the major cause of ischemic cerebrovascular disease (ICVD). This study aimed to determine the associations between circulating RANTES level and overall AS conditions of cardiac and cerebral vessel beds in patients with ICVD.Methods:Patients with ICVD admitted to the department of neurology of Xuanwu Hospital from April 1, 2019 to June 30, 2019 were prospectively enrolled in the study. Plasma RANTES level was measured by enzyme-linked immunosorbent assay to represent the circulating RANTES level. The integrated AS burden of the cervicocephalic and coronary arteries was examined using computed tomography angiography and reflected by "cardio-cerebral AS burden (CCAB)" as a continuous variable. Then, the relationship of plasma RANTES level and CCAB in patients with ICVD was analyzed by correlation analyses and general linear models.Results:A total of 40 patients with ICVD were included in the study. There was a significant positive correlation between CCAB and plasma RANTES level in ICVD (r = 0.786, P < 0.001), independent of age, sex, acute or chronic phase of ICVD, and mono or dual antiplatelet therapy (adjusted B for ln RANTES, 12.063; 95% confidence interval, 7.572-16.533). The association of plasma RANTES level with AS conditions (burden, severity, and extent) in single cardiac or cerebral vessel bed was similar to that with CCAB, but the correlation coefficient for CCAB was higher (increment ranged from 0.126 to 0.397).Conclusions:Plasma RANTES level was an independent indicator for the integrated AS burden of the cervicocephalic and coronary arteries in ICVD. Comprehensive evaluation of AS conditions using the novel continuous index CCAB might be important in revealing the systematic relationship between circulating RANTES and AS in patients with ICVD.

  • 标签: Plasma RANTES Cardiocerebral atherosclerosis burden Ischemic cerebrovascular disease Cervicocephalic artery Coronary artery
  • 简介:AbstractBackground:Aspirin-exacerbated respiratory disease (AERD) is an aggressive inflammatory disorder of the upper and lower respiratory tract. Corticosteroids, leukotriene modifiers, endoscopic sinus surgery (ESS), aspirin (ASA) desensitization, and biological immu-nomodulators are currently used to treat the disorder.Objective:The objective of this study was to determine the psychosocial impact of ESS and ASA desensitization on AERD patients.Methods:All AERD patients who underwent complete ESS were divided into two cohorts based on ASA desensitization status. The psychosocial metrics of the SNOT-22 were collected and analyzed at the following time points: pre-operative, 1-month, 3-month, 6-month, and 12-month after ESS.Results:One hundred and eighty-four AERD patients underwent ESS from November 2009 to November 2018. From this group, 130 patients underwent ASA desensitization (AD cohort) and 54 patients remained non-desensitized (ND cohort). AD patients showed a significantly greater reduction in total SNOT-22 scores over the study period compared to ND patients (p = 0.0446). Analysis of SNOT-22 psychosocial metrics showed a significantly greater improvement in patient productivity in the AD cohort when compared to the ND cohort (p = 0.0214). Further, a sub-group analysis accounting for subject attrition showed a significantly greater improvement in both productivity and concentration in AD patients when compared to the ND cohort (productivity: p = 0.0068; concentration: p = 0.0428).Conclusions:ESS followed by ASA desensitization decreases the overall psychosocial burden in AERD patients with a significant improvement in perceived productivity and concentration. This has significant implications given the psychosocial impact of chronic diseases.

  • 标签: Psychosocial domain AERD Aspirin desensitization Sinus surgery
  • 简介:AbstractWith the outbreak of the coronavirus disease 2019 (COVID-19) pandemic, the importance of vaccines in epidemic prevention and public health has become even more obvious than ever. However, the emergence of multiple severe acute respiratory syndrome coronavirus 2 variants worldwide has raised concerns about the effectiveness of current COVID-19 vaccines. Here, we review the characteristics of COVID-19 vaccine candidates in five platforms and the latest clinical trial results of them. In addition, we further discuss future directions for the research and development of the next generation of COVID-19 vaccines. We also summarize the serious adverse events reported recently after the large-scale vaccination with the current COVID-19 vaccines, including the thromboembolism caused by the AstraZeneca and Johnson & Johnson vaccines.

  • 标签: Severe acute respiratory syndrome coronavirus 2 COVID-19 Vaccine Immunogenicity Safety Clinical trial
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  • 简介:AbstractBackground:Despite the recent advances in treatments for rheumatoid arthritis (RA), there are still unmet needs in disease outcomes. This study aimed to analyze the satisfaction with drug therapies for RA according to the levels of disease severity (patientassessed) and proportions of treatment cost to household income.Methods:This was a subgroup study of a cross-sectional study in patients with RA and their physicians. The patients were subdivided into different subgroups based on their self-assessed severity of RA and on the proportions of treatment cost to household income (<10%, 10-30%, 31-50%, and >50%). The Treatment Satisfaction Questionnaire for Medication version II was used to assess patients’ treatment satisfaction.Results:When considering all medications, effectiveness, convenience, and global satisfaction scores were lower in the severe and moderate RA subgroups than those in the mild and extremely mild RA subgroups (all P < 0.001). Effectiveness, side effects, and convenience scores were higher in the <10% subgroup compared to those in the >50% subgroup (all P < 0.05). Global satisfaction score was higher in the <10% subgroup than that in the 31% to 50% subgroup (F = 13.183, P = 0.004). For biological diseasemodifying anti-rheumatic drugs, effectiveness and convenience scores were lower in the severe RA subgroup than those in the extremely mild RA subgroup (both P < 0.05). Convenience score was higher in the <10% subgroup compared to that in the 31% to 50% and >50% subgroups (F = 12.646, P = 0.005). Global satisfaction score was higher in the <10% subgroup than that in the 31% to 50% subgroup (F = 8.794, P = 0.032).Conclusion:Higher disease severity and higher financial burden were associated with lower patient satisfaction.

  • 标签: Disease severity Rheumatoid arthritis Treatment cost Treatment satisfaction
  • 作者: Engels Dirk Zhou Xiao-Nong
  • 学科: 医药卫生 >
  • 创建时间:2020-08-10
  • 出处:《贫困所致传染病(英文)》 2020年第01期
  • 机构:Uniting to Combat NTDs Support Centre, Geneva, Switzerland; National Institute of Parasitic Diseases at Chinese Center for Disease Control and Prevention, Chinese Center for Tropical Diseases Research, Shanghai 200025, People’s Republic of China; World Health Organization Collaborative Centre for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, Ministry of Health of China, Shanghai 200025, People’s Republic of China,National Institute of Parasitic Diseases at Chinese Center for Disease Control and Prevention, Chinese Center for Tropical Diseases Research, Shanghai 200025, People’s Republic of China; World Health Organization Collaborative Centre for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, Ministry of Health of China, Shanghai 200025, People’s Republic of China; School of Global Health, Chinese Center for Tropical Diseases Research, Jiatong University School of Medicine, Shanghai 200025, People’s Republic of China
  • 简介:AbstractBackground:Neglected tropical diseases (NTDs) have long been overlooked in the global health agenda. They are intimately related to poverty, cause important local burdens of disease, but individually do not represent global priorities. Yet, NTDs were estimated to affect close to 2 billion people at the turn of the millennium, with a collective burden equivalent to HIV/AIDS, tuberculosis, or malaria. A global response was therefore warranted.Main text:The World Health Organization (WHO) conceived an innovative strategy in the early 2000s to combat NTDs as a group of diseases, based on a combination of five public health interventions. Access to essential NTD medicines has hugely improved thanks to strong public-private partnership involving the pharmaceutical sector. The combination of a WHO NTD roadmap with clear targets to be achieved by 2020 and game-changing partner commitments endorsed in the London Declaration on Neglected Tropical Diseases, have led to unprecedented progress in the implementation of large-scale preventive treatment, case management and care of NTDs. The coming decade will see as challenges the mainstreaming of these NTD interventions into Universal Health Coverage and the coordination with other sectors to get to the roots of poverty and scale up transmission-breaking interventions. Chinese expertise with the elimination of multiple NTDs, together with poverty reduction and intersectoral action piloted by municipalities and local governments, can serve as a model for the latter. The international community will also need to keep a specific focus on NTDs in order to further steer this global response, manage the scaling up and sustainment of NTD interventions globally, and develop novel products and implementation strategies for NTDs that are still lagging behind.Conclusions:The year 2020 will be crucial for the future of the global response to NTDs. Progress against the 2020 roadmap targets will be assessed, a new 2021-2030 NTD roadmap will be launched, and the London Declaration commitments will need to be renewed. It is hoped that during the coming decade the global response will be able to further build on today's successes, align with the new global health and development frameworks, but also keep focused attention on NTDs and mobilize enough resources to see the effort effectively through to 2030.

  • 标签: Neglected tropical diseases Diseases of poverty Global health priorities Integrated control
  • 简介:AccordingtotheWorldHealthOrganization,"physicalinactivityhasbeenidentifiedasthefourthleadingriskfactorforglobalmortalitycausinganestimated3.2million(annual)deathsglobally.”1IntheResearchHighlightofthefirstissueofthisjournal,Ireviewedtheevidencewhichsupportsthenotionthatphysicalinactivitycancostlives,intermsoflongevityandqualityoflife,especiallyinthelastfewyearsofourlives.2Here,Iwouldliketoreviewtheliteraturethatrevealsthefinancialburdenduetophysicalinactivity.

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  • 简介:AfterexpandingthecapacitybywideningthetrolleyoftheNo.3sinteringmachine,severeunevensinteringoccurredinthetrolley’slateraldistribution,whichaffectedtheoutputandqualityofsinter.Inthisstudy,thequantitativeevaluationindicesoftheburdenuniformdistributioninthewidthdirectionofthesinteringmachineisintroducedforthefirsttime.Bymeasuringthetemperatureofdischargedgas,aplanetemperaturefieldisconstructed.Throughanalyzingthetemperaturefieldandtheburdenlayer’sdifferentialthermalequilibrium,amathematicalmodelforevaluatingtheindices,whichisanonlinereflectionofthedegreeofuniformdistribution,isbuilt.Followingtheimprovementsinburdendistributionequipment,theoptimizationoftheignitionsystemandthedynamicadjustmentoftheprocess,theproblemofunevensinteringinlateraldistributionhasbeensolved,andthequalityandtheyieldofsinterhavebeenimproved.

  • 标签: 烧结技术 均匀分布 负担 监测 定量评价指标 横向分布
  • 简介:AbstractBackground:The increasing burden of non-alcoholic fatty liver disease (NAFLD) worldwide imposes an emerging public health issue. We perform the current study to estimate the global prevalence, incidence, disease progression, and clinical outcomes of NAFLD.Methods:A systematic search was conducted in Medline, Embase, Web of Science, Google Scholar, and Cochrane CENTRAL that screened articles in English language published from January 2000 to December 2021. NAFLD prevalence, incidence, rate of disease progression, and outcomes were calculated with the DerSimonian-Laird random effects model with arcsine transformation.Results:Our search identified 59,156 records, of which 578 studies fulfilled our inclusion criteria. The overall prevalence of NAFLD was 29.38% (95% confidence interval [CI] 28.09–30.69) regardless of the diagnostic techniques. Looking at the group in which the diagnosis was made by ultrasound exclusively, the pooled prevalence was 30.49% (95% CI 29.55–31.43). NAFLD has become more prevalent during the year 2011–2021 (31.63%, 95% CI 30.23–33.04) compared with year 2000–2010 (27.94%, 95% CI 26.23–29.69). The pooled estimation of non-alcoholic steatohepatitis prevalence was 8.26% (95% CI 1.13–21.01), 46.49% (95% CI 35.93–57.20), and 46.72% (95% CI 37.57–55.98) in general population, NAFLD patients, and severe/morbidly obese patients, respectively. Based on a total of 110,142 newly developed NAFLD patients, the pooled incident rate was estimated as 46.24 cases per 1000 person-years (95% CI 43.21–49.30). In patients with NAFLD, the incident rate of hepatocellular carcinoma was 1.46 (95% CI 0.90–2.03) cases per 1000 person-years. The overall pooled estimate of NAFLD related mortality was 23.91 (95% CI 13.55–37.18) death per 1000 person-years.Conclusions:The prevalence of NAFLD is increasing globally. It is contributing to poor clinical outcomes including hepatocellular carcinoma and death. Rising awareness and urgent actions are warranted to control the NAFLD pandemic across the globe.Registration:PROSPERO, No. CRD42020171104.

  • 标签: Incidence Non-alcoholic fatty liver disease Non-alcoholic steatohepatitis Outcome Prevalence