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https://www.readbyqxmd.com/read/29146647/initial-non-operative-management-of-uncomplicated-appendicitis-in-children-a-protocol-for-a-multicentre-randomised-controlled-trial-apac-trial
#1
Max Knaapen, Johanna H van der Lee, Roel Bakx, Sarah-May L The, Ernst W E van Heurn, Hugo A Heij, Ramon R Gorter
INTRODUCTION: Based on epidemiological, immunological and pathology data, the idea that appendicitis is not necessarily a progressive disease is gaining ground. Two types are distinguished: simple and complicated appendicitis. Non-operative treatment (NOT) of children with simple appendicitis has been investigated in several small studies. So far, it is deemed safe. However, its effectiveness and effect on quality of life (QoL) have yet to be established in an adequately powered randomised trial...
November 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/29064483/coupling-external-with-internal-exposure-metrics-of-trihalomethanes-in-young-females-from-kuwait-and-cyprus
#2
Stephanie Gängler, Konstantinos C Makris, Walid Bouhamra, Douglas W Dockery
The Eastern Mediterranean and the Middle Eastern regions are both understudied in terms of possible environmental health risks for their populations. Water scarcity and desalination treatment provide the general population of countries from these regions (e.g., Kuwait and Cyprus) with unique tap water characteristics. This study investigated the association between external (tap water and 24 h personal air samples) and internal (urine) THM exposure metrics that reflected information about THM-related habits and activities collected using questionnaires and time activity diaries...
October 18, 2017: Journal of Exposure Science & Environmental Epidemiology
https://www.readbyqxmd.com/read/29061634/association-between-statistical-significance-and-time-to-publication-among-systematic-reviews-a-study-protocol-for-a-meta-epidemiological-investigation
#3
Yasushi Tsujimoto, Yusuke Tsutsumi, Yuki Kataoka, Hiraku Tsujimoto, Yosuke Yamamoto, Davide Papola, Gordon H Guyatt, Shunichi Fukuhara, Toshi A Furukawa
INTRODUCTION: Many studies have indicated the impact of bias in dissemination and publication in medical research. Existence of such bias among clinical trials has been repeatedly pointed out, but it has not been well studied in the field of systematic reviews (SRs). We therefore aim to investigate whether or not time lag bias and publication bias in SRs based on statistical significance in results exist. In addition, we will examine at what stage of paper publication process such bias, if any, creeps in...
October 22, 2017: BMJ Open
https://www.readbyqxmd.com/read/29019346/occupational-exposure-to-pesticides-development-of-a-job-exposure-matrix-for-use-in-population-based-studies-pestipop
#4
Camille Carles, Ghislaine Bouvier, Yolande Esquirol, Camille Pouchieu, Lucile Migault, Clément Piel, Pascale Fabbro-Peray, Séverine Tual, Pierre Lebailly, Isabelle Baldi
Occupational exposure to pesticides concerns a wide population of workers not only in agriculture. The reliability of self-reported information on pesticide use is questionable because of the diversity of use. The PESTIPOP job-exposure matrix has been designed to assess pesticide occupational exposure in the general population. The matrix is composed of two axes: the first axis corresponding to jobs (combinations of occupations and industries) and the second one to pesticide exposure. The estimated exposure metric is the probability of exposure coupled with a reliability assessment (low, medium or high)...
October 11, 2017: Journal of Exposure Science & Environmental Epidemiology
https://www.readbyqxmd.com/read/29018068/epidemiology-of-venous-thromboembolism-in-africa-a-systematic-review-and-meta-analysis-protocol
#5
Celestin Danwang, Mazou N Temgoua, Valirie Ndip Agbor, Aurel T Tankeu, Jean Jacques Noubiap
INTRODUCTION: Venous thromboembolism (VTE) is among the three major causes of cardiovascular diseases worldwide after ischaemic heart disease and stroke. Knowledge on the global epidemiology of this condition is deficient in Africa. Accurate data are needed to evaluate the burden of VTE in Africa to design effective preventive and treatment strategies. This systematic review and meta-analysis aims to summarise epidemiological data on VTE in Africa and to evaluate the use of prophylaxis in African patients at risk of VTE...
October 10, 2017: BMJ Open
https://www.readbyqxmd.com/read/28990589/which-anthropometric-measures-best-reflect-neonatal-adiposity
#6
L-W Chen, M-T Tint, M V Fortier, I M Aris, Lp-C Shek, K H Tan, S-Y Chan, P D Gluckman, Y-S Chong, K M Godfrey, V S Rajadurai, F Yap, M S Kramer, Y S Lee
BACKGROUND: Studying the determinants and the long-term consequences of fetal adipose accretion requires accurate assessment of neonatal body composition. In large epidemiological studies, in-depth body composition measurement methods are usually not feasible for cost and logistical reasons, and there is a need to identify anthropometric measures that adequately reflect neonatal adiposity. METHODS: In a multiethnic Asian mother-offspring cohort in Singapore, anthropometric measures (weight, length, abdominal circumference, skinfold thicknesses) were measured using standardized protocols in newborn infants, and anthropometric indices [weight/length, weight/length(2) (body mass index, BMI), weight/length(3) (ponderal index, PI)] derived...
October 9, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28982825/detectaweb-project-study-protocol-of-a-web-based-detection-of-mental-health-of-children-and-adolescents
#7
Jose A Piqueras, Mariola Garcia-Olcina, Maria Rivera-Riquelme, Tiscar Rodriguez-Jimenez, Agustin E Martinez-Gonzalez, Pim Cuijpers
INTRODUCTION: Traditionally, research and practice addressing mental health has been conducted within a unidimensional model, explaining mental health as the presence/absence of psychological problems (distress or psychopathological symptoms). More recently, accumulative evidence has supported a bi-dimensional model, which conceptualises psychological problems and psychological strengths (well-being) as related-yet-distinct continua that, when considered together, yields a more comprehensive understanding of individuals...
October 5, 2017: BMJ Open
https://www.readbyqxmd.com/read/28963300/influence-of-allocation-concealment-and-intention-to-treat-analysis-on-treatment-effects-of-physical-therapy-interventions-in-low-back-pain-randomised-controlled-trials-a-protocol-of-a-meta-epidemiological-study
#8
Matheus Oliveira Almeida, Bruno T Saragiotto, Chris G Maher, Leonardo Oliveira Pena Costa
INTRODUCTION: Meta-epidemiological studies examining the influence of methodological characteristics, such as allocation concealment and intention-to-treat analysis have been performed in a large number of healthcare areas. However, there are no studies investigating these characteristics in physical therapy interventions for patients with low back pain. The aim of this study is to investigate the influence of allocation concealment and the use of intention-to-treat analysis on estimates of treatment effects of physical therapy interventions in low back pain clinical trials...
September 27, 2017: BMJ Open
https://www.readbyqxmd.com/read/28948026/design-of-the-subpopulations-and-intermediate-outcome-measures-in-copd-spiromics-air-study
#9
Nadia N Hansel, Laura M Paulin, Amanda J Gassett, Roger D Peng, Neil Alexis, Vincent S Fan, Eugene Bleecker, Russell Bowler, Alejandro P Comellas, Mark Dransfield, MeiLan K Han, Victor Kim, Jerry A Krishnan, Cheryl Pirozzi, Christopher B Cooper, Fernando Martinez, Prescott G Woodruff, Patrick J Breysse, R Graham Barr, Joel D Kaufman
INTRODUCTION: Population-based epidemiological evidence suggests that exposure to ambient air pollutants increases hospitalisations and mortality from chronic obstructive pulmonary disease (COPD), but less is known about the impact of exposure to air pollutants on patient-reported outcomes, morbidity and progression of COPD. METHODS AND ANALYSIS: The Subpopulations and Intermediate Outcome Measures in COPD (SPIROMICS) Air Pollution Study (SPIROMICS AIR) was initiated in 2013 to investigate the relation between individual-level estimates of short-term and long-term air pollution exposures, day-to-day symptom variability and disease progression in individuals with COPD...
2017: BMJ Open Respiratory Research
https://www.readbyqxmd.com/read/28932373/cohort-profile-update-the-amirkola-health-and-ageing-project-ahap
#10
Ali Bijani, Reza Ghadimi, Ebrahim Mikaniki, Farzan Kheirkhah, Seyyed Ali Mozaffarpur, Mina Motallebnejad, Haleh Esmaili, Fatemeh Majidi, Robert Graham Cumming, Seyed Reza Hosseini
The original cohort study of AHAP started in 2011 on 1616 elderly residents of Amirkola, northern part of Iran near the Caspian Sea. The main goal of this study was to comprehensively evaluate the health of the elderly in the region with the emphasis on chronic diseases such as osteoporosis. The first cohort profile was published in the International Journal of Epidemiology in 2014. The phase 1 AHAP showed the elevated level of some diseases and conditions including osteoporosis, metabolic syndrome, obesity, vision problems and relatively low levels of oral health...
2017: Caspian Journal of Internal Medicine
https://www.readbyqxmd.com/read/28883539/role-of-adipose-tissue-in-melanoma-cancer-microenvironment-and-progression
#11
E Zoico, E Darra, V Rizzatti, M Tebon, G Franceschetti, G Mazzali, A P Rossi, F Fantin, M Zamboni
BACKGROUND: An epidemiological association between excess weight and increased risk of cancer has been described in melanoma, for which the physiopathological mechanisms are still unknown. The study of tumor microenvironment and of the role of adipocytes in cancer development, progression and metastasis has recently received great interest. However, the role of peritumoral adipocytes has been characterized only in a few types of cancer and in melanoma it still remains to be defined. METHODS: We investigated the interactions between adipocytes and melanoma cells using an in vitro co-culture system...
September 8, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28863029/requirements-for-trial-registration-and-adherence-to-reporting-guidelines-in-critical-care-journals-a-meta-epidemiological-study-of-journals-instructions-for-authors
#12
Matthew T Sims, Jake X Checketts, Cole Wayant, Matt Vassar
BACKGROUND: The purpose of this study was to investigate the policies of critical care journals with regard to guideline adoption and clinical trial registration to understand the extent to which journals use these mechanisms to improve reporting practices. METHODS: The current study's sample comprised 37 critical care journals cataloged in the Expanded Science Citation Index of the 2015 Journal Citation Reports and Google Scholar Metrics h5-index critical care subcategory...
August 31, 2017: International Journal of Evidence-based Healthcare
https://www.readbyqxmd.com/read/28853718/genetic-correlations-between-intraocular-pressure-blood-pressure-and-primary-open-angle-glaucoma-a-multi-cohort-analysis
#13
Hugues Aschard, Jae H Kang, Adriana I Iglesias, Pirro Hysi, Jessica N Cooke Bailey, Anthony P Khawaja, R Rand Allingham, Allison Ashley-Koch, Richard K Lee, Sayoko E Moroi, Murray H Brilliant, Gadi Wollstein, Joel S Schuman, John H Fingert, Donald L Budenz, Tony Realini, Terry Gaasterland, William K Scott, Kuldev Singh, Arthur J Sit, Robert P Igo, Yeunjoo E Song, Lisa Hark, Robert Ritch, Douglas J Rhee, Vikas Gulati, Shane Haven, Douglas Vollrath, Donald J Zack, Felipe Medeiros, Robert N Weinreb, Ching-Yu Cheng, Daniel I Chasman, William G Christen, Margaret A Pericak-Vance, Yutao Liu, Peter Kraft, Julia E Richards, Bernard A Rosner, Michael A Hauser, Caroline C W Klaver, Cornelia M vanDuijn, Jonathan Haines, Janey L Wiggs, Louis R Pasquale
Primary open-angle glaucoma (POAG) is the most common chronic optic neuropathy worldwide. Epidemiological studies show a robust positive relation between intraocular pressure (IOP) and POAG and modest positive association between IOP and blood pressure (BP), while the relation between BP and POAG is controversial. The International Glaucoma Genetics Consortium (n=27 558), the International Consortium on Blood Pressure (n=69 395), and the National Eye Institute Glaucoma Human Genetics Collaboration Heritable Overall Operational Database (n=37 333), represent genome-wide data sets for IOP, BP traits and POAG, respectively...
November 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28830078/reproducing-epidemiologic-research-and-ensuring-transparency
#14
Steven S Coughlin
Measures for ensuring that epidemiologic studies are reproducible include making data sets and software available to other researchers so they can verify published findings, conduct alternative analyses of the data, and check for statistical errors or programming errors. Recent developments related to the reproducibility and transparency of epidemiologic studies include the creation of a global platform for sharing data from clinical trials and the anticipated future extension of the global platform to non-clinical trial data...
August 15, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28815007/appropriate-selection-for-omalizumab-treatment-in-patients-with-severe-asthma
#15
Leo Nygaard, Daniel Pilsgaard Henriksen, Hanne Madsen, Jesper Rømhild Davidsen
Background: Omalizumab improves asthma control in patients with uncontrolled severe allergic asthma; however, appropriate patient selection is crucial. Information in this field is sparse. Objective: We aimed to estimate whether potential omalizumab candidates were appropriately selected according to guidelines, and the clinical effect of omalizumab treatment over time. Design: We performed a retrospective observational study on adult patients with asthma treated with omalizumab during 2006-2015 at the Department of Respiratory Medicine at Odense University Hospital (OUH), Denmark...
2017: European Clinical Respiratory Journal
https://www.readbyqxmd.com/read/28811650/diet-induced-obesity-leads-to-metabolic-dysregulation-in-offspring-via-endoplasmic-reticulum-stress-in-a-sex-specific-manner
#16
J H Park, Y Yoo, M Cho, J Lim, A M Lindroth, Y J Park
BACKGROUND/OBJECTIVES: Exposure to metabolic stress has been suggested to influence the susceptibility to metabolic disorders in offspring according to epidemiological and animal studies. Nevertheless, molecular mechanisms remain unclear. We investigated impacts of diet-induced paternal obesity on metabolic phenotypes in offspring and its underlying molecular mechanism. SUBJECTS/METHODS: Male founder mice (F0), fed with control diet (CD) or high-fat diet (HFD), were mated with CD-fed females...
August 16, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28795108/data-for-the-oxford-abdominal-aortic-aneurysm-study-international-survey-of-vascular-surgery-professionals
#17
Regent Lee, Amy Jones, Felicity Woodgate, Nicholas Killough, Kirthi Bellamkonda, Matthew Williams, Katherine Hurst, Lucy Fulford-Smith, Ismail Cassimjee, Ashok Handa
As part of the Oxford Abdominal Aortic Aneurysm (OxAAA) Study, we conducted an international survey of vascular surgery professionals. One aspect of the survey is as published in the International Journal of Cardiology: "International Opinion on Priorities in Research for Small Abdominal Aortic Aneurysms and the Potential Path for Research to Impact Clinical Management". This Data-in-Brief article contains a detailed method for the conduct of this survey and additional original data. In this survey, we also provided vascular surgery colleagues with contemporary epidemiologic and surgical outcome data...
October 2017: Data in Brief
https://www.readbyqxmd.com/read/28706087/periconception-endogenous-and-exogenous-maternal-sex-steroid-hormones-and-risk-of-asthma-and-allergy-in-offspring-protocol-for-a-systematic-review-and-meta-analysis
#18
Merhunisa Talovic, Aziz Sheikh, Nicola McCleary, Maijaliisa Erkkola, Minna Kaila, Suvi M Virtanen, Bright I Nwaru
INTRODUCTION: Pregnancy is associated with several hormonal changes which influence the developing fetus. Variations in maternal endogenous hormones and prepregnancy use of hormonal preparations have been linked to asthma and allergy in the offspring, but findings are inconsistent. We plan to undertake a systematic review to synthesise the evidence on the association between endogenous and exogenous maternal sex hormones and the risk of asthma and allergy in the offspring. METHODS AND ANALYSIS: We will search Medline, Embase, Cochrane Library, Institute of Scientific Information Web of Science, Cumulative Index of Nursing and Allied Health, Scopus, Google Scholar, Allied and Complementary Medicine Database, Global Health, Psychological Information (PsycINFO), Centre for Agriculture and Bioscience (CAB) International and WHO Global Health Library from inception until 2016 to identify relevant studies on the topic...
July 12, 2017: BMJ Open
https://www.readbyqxmd.com/read/28684189/trends-in-global-acupuncture-publications-an-analysis-of-the-web-of-science-database-from-1988-to-2015
#19
Yen-Ying Kung, Shinn-Jang Hwang, Tsai-Feng Li, Seong-Gyu Ko, Ching-Wen Huang, Fang-Pey Chen
BACKGROUND: Acupuncture is a rapidly growing medical specialty worldwide. This study aimed to analyze the acupuncture publications from 1988 to 2015 by using the Web of Science (WoS) database. Familiarity with the trend of acupuncture publications will facilitate a better understanding of existing academic research in acupuncture and its applications. METHODS: Academic articles published focusing on acupuncture were retrieved and analyzed from the WoS database which included articles published in Science Citation Index-Expanded and Social Science Citation Indexed journals from 1988 to 2015...
July 3, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28679174/invited-commentary-causal-inference-across-space-and-time-quixotic-quest-worthy-goal-or-both
#20
COMMENT
Jessie K Edwards, Catherine R Lesko, Alexander P Keil
The g-formula and agent-based models (ABMs) are 2 approaches used to estimate causal effects. In the current issue of the Journal, Murray et al. (Am J Epidemiol. 2017;186(2):131-142) compare the performance of the g-formula and ABMs to estimate causal effects in 3 target populations. In their thoughtful paper, the authors outline several reasons that a causal effect estimated using an ABM may be biased when parameterized from at least 1 source external to the target population. The authors have addressed an important issue in epidemiology: Often causal effect estimates are needed to inform public health decisions in settings without complete data...
July 15, 2017: American Journal of Epidemiology
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