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Journal ArticleDOI

Risk of Surgery for Inflammatory Bowel Diseases Has Decreased Over Time: A Systematic Review and Meta-analysis of Population-Based Studies

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TLDR
The risk of intestinal surgery among patients with IBD has decreased over the past 6 decades, and the trend in risk of surgery over time was analyzed by meta-regression using mixed-effect models.
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This article is published in Gastroenterology.The article was published on 2013-11-01. It has received 623 citations till now. The article focuses on the topics: Inflammatory bowel disease & Population.

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Members of the endocannabinoid system are distinctly regulated in inflammatory bowel disease and colorectal cancer.

TL;DR: Members of the ECS and related components of the ‘endocannabinoidome’ in patients with inflammatory bowel disease and CRC are determined and alterations for less known components in intestinal inflammation are reported, such as GPR119, OEA and LPI.
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The molecular biology of matrix metalloproteinases and tissue inhibitors of metalloproteinases in inflammatory bowel diseases

TL;DR: Current literature on genetic association, mRNA, and protein expression studies with regard to MMPs and TIMPs in IBD patients and various animal models are summarized to compare biochemical and molecular biological data in humans with those obtained in animal model studies.
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A Simple Ultrasound Score for the Accurate Detection of Inflammatory Activity in Crohn's Disease.

TL;DR: A simple ultrasonographic score that accurately identifies Crohn's disease activity has been developed and validated and may be a surrogate for endoscopy to guide disease management, but future studies should be conducted to establish interrater variability.
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Surgical rates in the era of biological therapy: up, down or unchanged?

TL;DR: Although data from population-based studies and available RCTs suggest a protective effect from surgery of anti-TNF agents, definitive conclusions should be drawn only when more disease-modifying trials with different biologics and treatment strategies become available.
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Journal Article

R: A language and environment for statistical computing.

R Core Team
- 01 Jan 2014 - 
TL;DR: Copyright (©) 1999–2012 R Foundation for Statistical Computing; permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and permission notice are preserved on all copies.
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Measuring inconsistency in meta-analyses

TL;DR: A new quantity is developed, I 2, which the authors believe gives a better measure of the consistency between trials in a meta-analysis, which is susceptible to the number of trials included in the meta- analysis.
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Quantifying heterogeneity in a meta‐analysis

TL;DR: It is concluded that H and I2, which can usually be calculated for published meta-analyses, are particularly useful summaries of the impact of heterogeneity, and one or both should be presented in publishedMeta-an analyses in preference to the test for heterogeneity.
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Meta-analysis of observational studies in epidemiology - A proposal for reporting

TL;DR: A checklist contains specifications for reporting of meta-analyses of observational studies in epidemiology, including background, search strategy, methods, results, discussion, and conclusion should improve the usefulness ofMeta-an analyses for authors, reviewers, editors, readers, and decision makers.
Journal ArticleDOI

Operating characteristics of a rank correlation test for publication bias.

TL;DR: In this paper, an adjusted rank correlation test is proposed as a technique for identifying publication bias in a meta-analysis, and its operating characteristics are evaluated via simulations, and the test statistic is a direct statistical analogue of the popular funnel-graph.
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