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      The global, regional, and national burden of inflammatory bowel disease in 195 countries and territories, 1990–2017: a systematic analysis for the Global Burden of Disease Study 2017

      research-article
      GBD 2017 Inflammatory Bowel Disease Collaborators
      The Lancet. Gastroenterology & Hepatology
      Elsevier B.V

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          Summary

          Background

          The burden of inflammatory bowel disease (IBD) is rising globally, with substantial variation in levels and trends of disease in different countries and regions. Understanding these geographical differences is crucial for formulating effective strategies for preventing and treating IBD. We report the prevalence, mortality, and overall burden of IBD in 195 countries and territories between 1990 and 2017, based on data from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2017.

          Methods

          We modelled mortality due to IBD using a standard Cause of Death Ensemble model including data mainly from vital registrations. To estimate the non-fatal burden, we used data presented in primary studies, hospital discharges, and claims data, and used DisMod-MR 2.1, a Bayesian meta-regression tool, to ensure consistency between measures. Mortality, prevalence, years of life lost (YLLs) due to premature death, years lived with disability (YLDs), and disability-adjusted life-years (DALYs) were estimated. All of the estimates were reported as numbers and rates per 100 000 population, with 95% uncertainty intervals (UI).

          Findings

          In 2017, there were 6·8 million (95% UI 6·4–7·3) cases of IBD globally. The age-standardised prevalence rate increased from 79·5 (75·9–83·5) per 100 000 population in 1990 to 84·3 (79·2–89·9) per 100 000 population in 2017. The age-standardised death rate decreased from 0·61 (0·55–0·69) per 100 000 population in 1990 to 0·51 (0·42–0·54) per 100 000 population in 2017. At the GBD regional level, the highest age-standardised prevalence rate in 2017 occurred in high-income North America (422·0 [398·7–446·1] per 100 000) and the lowest age-standardised prevalence rates were observed in the Caribbean (6·7 [6·3–7·2] per 100 000 population). High Socio-demographic Index (SDI) locations had the highest age-standardised prevalence rate, while low SDI regions had the lowest age-standardised prevalence rate. At the national level, the USA had the highest age-standardised prevalence rate (464·5 [438·6–490·9] per 100 000 population), followed by the UK (449·6 [420·6–481·6] per 100 000). Vanuatu had the highest age-standardised death rate in 2017 (1·8 [0·8–3·2] per 100 000 population) and Singapore had the lowest (0·08 [0·06–0·14] per 100 000 population). The total YLDs attributed to IBD almost doubled over the study period, from 0·56 million (0·39–0·77) in 1990 to 1·02 million (0·71–1·38) in 2017. The age-standardised rate of DALYs decreased from 26·5 (21·0–33·0) per 100 000 population in 1990 to 23·2 (19·1–27·8) per 100 000 population in 2017.

          Interpretation

          The prevalence of IBD increased substantially in many regions from 1990 to 2017, which might pose a substantial social and economic burden on governments and health systems in the coming years. Our findings can be useful for policy makers developing strategies to tackle IBD, including the education of specialised personnel to address the burden of this complex disease.

          Funding

          Bill & Melinda Gates Foundation.

          Related collections

          Most cited references21

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          The microbiome in inflammatory bowel disease: current status and the future ahead.

          Studies of the roles of microbial communities in the development of inflammatory bowel disease (IBD) have reached an important milestone. A decade of genome-wide association studies and other genetic analyses have linked IBD with loci that implicate an aberrant immune response to the intestinal microbiota. More recently, profiling studies of the intestinal microbiome have associated the pathogenesis of IBD with characteristic shifts in the composition of the intestinal microbiota, reinforcing the view that IBD results from altered interactions between intestinal microbes and the mucosal immune system. Enhanced technologies can increase our understanding of the interactions between the host and its resident microbiota and their respective roles in IBD from both a large-scale pathway view and at the metabolic level. We review important microbiome studies of patients with IBD and describe what we have learned about the mechanisms of intestinal microbiota dysfunction. We describe the recent progress in microbiome research from exploratory 16S-based studies, reporting associations of specific organisms with a disease, to more recent studies that have taken a more nuanced view, addressing the function of the microbiota by metagenomic and metabolomic methods. Finally, we propose study designs and methodologies for future investigations of the microbiome in patients with inflammatory gut and autoimmune diseases in general. Copyright © 2014 AGA Institute. Published by Elsevier Inc. All rights reserved.
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            An Update on Inflammatory Bowel Disease

            Inflammatory bowel disease (IBD) includes 2 chronic idiopathic inflammatory diseases: ulcerative colitis and Crohn disease. The incidence and prevalence of IBD is increasing worldwide. It can affect people of all ages, including children and geriatric populations, and can impact all aspects of life. In this article, diagnosis and treatment of IBD in adults, pediatric, pregnant, and elderly populations are explored from the perspective of a primary care physician.
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              • Article: not found

              Symptoms of Depression and Anxiety Are Independently Associated With Clinical Recurrence of Inflammatory Bowel Disease

              We examined the relationship between symptoms of depression and anxiety and clinical recurrence of inflammatory bowel disease (IBD) in a large patient cohort. We considered the progression of depression and anxiety over time.
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                Author and article information

                Journal
                Lancet Gastroenterol Hepatol
                Lancet Gastroenterol Hepatol
                The Lancet. Gastroenterology & Hepatology
                Elsevier B.V
                2468-1253
                21 October 2019
                January 2020
                21 October 2019
                : 5
                : 1
                : 17-30
                Author notes
                [* ]Correspondence to: Prof Mohsen Naghavi, Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA 98121, USA nagham@ 123456uw.edu
                [** ]Prof Reza Malekzadeh, Digestive Disease Research Institute, Tehran University of Medical Sciences, Tehran, Iran malek@ 123456tums.ac.ir
                [†]

                Collaborators listed at the end of the Article

                Article
                S2468-1253(19)30333-4
                10.1016/S2468-1253(19)30333-4
                7026709
                31648971
                39506077-1490-489b-b0ab-3cc2a5bbb35b
                © 2020 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license

                This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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