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Epidemiology

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https://www.readbyqxmd.com/read/28072589/the-authors-reply
#1
Benoît Lepage, Sébastien Lamy, Nicolas Savy, Thierry Lang
No abstract text is available yet for this article.
January 6, 2017: Epidemiology
https://www.readbyqxmd.com/read/28072588/fertility-treatment-and-childhood-epilepsy-a-nationwide-cohort-study
#2
Laura Ozer Kettner, Ulrik Schiøler Kesmodel, Cecilia Høst Ramlau-Hansen, Bjørn Bay, Beate Ritz, Niels Bjerregaard Matthiesen, Tine Brink Henriksen
BACKGROUND: Fertility treatment includes hormonal stimulation of the woman and in vitro manipulation of gametes and embryos that may influence prenatal brain development. We aimed to investigate the association between fertility treatment and childhood epilepsy, including specific types of treatment and indications as well as subtypes of epilepsy. METHODS: In this nationwide birth cohort study, we included all pregnancies in Denmark resulting in live-born singletons, 1995-2003...
January 6, 2017: Epidemiology
https://www.readbyqxmd.com/read/28072587/re-estimating-the-causal-effect-of-an-exposure-on-change-from-baseline-using-directed-acyclic-graphs-and-path-analysis
#3
Cooper S Schumacher, Lianne Sheppard
No abstract text is available yet for this article.
January 6, 2017: Epidemiology
https://www.readbyqxmd.com/read/28045711/the-authors-respond
#4
Joshua V Garn, Babette A Brumback, Matthew C Freeman
No abstract text is available yet for this article.
December 28, 2016: Epidemiology
https://www.readbyqxmd.com/read/28045710/re-estimating-the-effect-of-school-water-sanitation-and-hygiene-improvements-on-pupil-health-outcomes
#5
Benjamin F Arnold
No abstract text is available yet for this article.
December 28, 2016: Epidemiology
https://www.readbyqxmd.com/read/28005571/long-term-exposure-to-pm2-5-and-mortality-among-older-adults-in-the-southeastern-us
#6
Yan Wang, Liuhua Shi, Mihye Lee, Pengfei Liu, Qian Di, Antonella Zanobetti, Joel D Schwartz
BACKGROUND: Little is known about what factors modify the effect of long-term exposure to PM2.5 on mortality, in part because in most previous studies certain groups such as rural residents and individuals with lower socioeconomic status (SES) are under-represented. METHODS: We studied 13.1 million Medicare beneficiaries (age ≥65) residing in seven southeastern US states during 2000-2013 with 95 million person-years of follow-up. We predicted annual average of PM2...
December 21, 2016: Epidemiology
https://www.readbyqxmd.com/read/27984427/the-authors-respond
#7
Matthew Sperrin, Jane Candlish, Ellena Badrick, Andrew Renehan, Iain Buchan
No abstract text is available yet for this article.
December 12, 2016: Epidemiology
https://www.readbyqxmd.com/read/27984426/stem-cell-divisions-per-se-do-not-cause-cancer
#8
Maarten J Wensink, James W Vaupel, Kaare Christensen
No abstract text is available yet for this article.
December 12, 2016: Epidemiology
https://www.readbyqxmd.com/read/27984425/effects-of-sample-handling-and-analytical-procedures-on-thyroid-hormone-concentrations-in-pregnant-women-s-plasma
#9
Gro D Villanger, Emily Learner, Matthew P Longnecker, Helga Ask, Heidi Aase, R Thomas Zoeller, Gun P Knudsen, Ted Reichborn-Kjennerud, Pål Zeiner, Stephanie M Engel
BACKGROUND: Maternal thyroid function is a critical mediator of fetal brain development. Pregnancy-related physiologic changes and handling conditions of blood samples may influence thyroid hormone biomarkers. We investigated the reliability of thyroid hormone biomarkers in plasma of pregnant women under various handling conditions. METHODS: We enrolled 17 pregnant women; collected serum and plasma were immediately frozen. Additional plasma aliquots were subjected to different handling conditions before the analysis of thyroid biomarkers: storage at room temperature for 24 or 48 hours before freezing and an extra freeze-thaw cycle...
December 12, 2016: Epidemiology
https://www.readbyqxmd.com/read/27984424/estimating-acute-cardiorespiratory-effects-of-ambient-volatile-organic-compounds
#10
Dongni Ye, Mitchel Klein, Howard H Chang, Jeremy A Sarnat, James A Mulholland, Eric S Edgerton, Andrea Winquist, Paige E Tolbert, Stefanie Ebelt Sarnat
BACKGROUND: The health effects of ambient volatile organic compounds (VOCs) have received less attention in epidemiologic studies than other commonly measured ambient pollutants. In this study, we estimated acute cardiorespiratory effects of ambient VOCs in an urban population. METHODS: Daily concentrations of 89 VOCs were measured at a centrally-located ambient monitoring site in Atlanta and daily counts of emergency department visits for cardiovascular diseases and asthma in the 5-county Atlanta area were obtained for the 1998-2008 period...
December 12, 2016: Epidemiology
https://www.readbyqxmd.com/read/27984423/evaluation-of-medication-mediated-effects-in-pharmacoepidemiology
#11
Eric J Tchetgen Tchetgen, Kelesitse Phiri
Medical conditions such as epilepsy or infection with human immunodeficiency virus (HIV) are known to be associated with a spectrum of adverse health outcomes if not appropriately managed by efficacious treatment and care. Medications for such conditions can be potent, and their use might sometimes have unintended health consequences. Prominent examples have emerged in HIV perinatal research in which use of antiretroviral treatment during pregnancy to treat maternal HIV infection and prevent transmission of the virus to the fetus have been shown to be associated with adverse birth outcomes...
December 12, 2016: Epidemiology
https://www.readbyqxmd.com/read/27984422/the-epidemiologic-silver-lining-of-climate-change
#12
Kimberly Thigpen Tart, Caroline H Dilworth, Linda S Birnbaum, John M Balbus
No abstract text is available yet for this article.
December 12, 2016: Epidemiology
https://www.readbyqxmd.com/read/27984421/cancer-incidence-in-workers-exposed-to-styrene-in-the-danish-reinforced-plastics-industry-1968-2012
#13
Mette Skovgaard Christensen, Johnni Hansen, Cecilia Høst Ramlau-Hansen, Gunnar Toft, Henrik Kolstad
BACKGROUND: Occupational exposure to styrene is widespread and has been suggested to be carcinogenic. The aim of this study was to investigate whether occupational exposure to styrene increases the risk of cancer, in particular lymphohematopoietic cancers. METHODS: We established a study population of 72,292 workers employed in 443 small and medium-sized companies producing reinforced plastics 1964-2007 by utilizing several national registries, expert assessment, and worker survey data...
December 12, 2016: Epidemiology
https://www.readbyqxmd.com/read/27984420/parametric-mediational-g-formula-approach-to-mediation-analysis-with-time-varying-exposures-mediators-and-confounders
#14
Sheng-Hsuan Lin, Jessica Young, Roger Logan, Eric J Tchetgen Tchetgen, Tyler J VanderWeele
The assessment of direct and indirect effects with time-varying mediators and confounders is a common but challenging problem, and standard mediation analysis approaches are generally not applicable in this context. The mediational g-formula was recently proposed to address this problem, paired with a semi-parametric estimation approach to evaluate longitudinal mediation effects empirically. In this paper, we develop a parametric estimation approach to the mediational g-formula, including a feasible algorithm implemented in a freely available SAS macro...
December 12, 2016: Epidemiology
https://www.readbyqxmd.com/read/27930394/the-changing-face-of-epidemiology-gender-disparities-in-citations
#15
Enrique F Schisterman, Chandra W Swanson, Ya-Ling Lu, Sunni L Mumford
BACKGROUND: Female biomedical scientists tend to publish fewer articles as last author than their male colleagues and accrue fewer citations per publication. We seek to understand whether epidemiology follows this pattern. METHODS: We gathered aggregate information on the current gender distribution of epidemiology departments (n=29 of 71 surveyed), societies (n=4 of 8), and journal editorial boards (n=6 of 6) using two online surveys and publicly available online information...
December 1, 2016: Epidemiology
https://www.readbyqxmd.com/read/27922532/gender-equity-in-epidemiology-miles-to-go
#16
Reshma Jagsi
No abstract text is available yet for this article.
December 1, 2016: Epidemiology
https://www.readbyqxmd.com/read/27922531/improving-assessments-of-population-level-vaccine-impact
#17
Christian A W Bruhn, Cynthia Schuck-Paim, Esra Kürüm, Robert J Taylor, Lone Simonsen, Daniel M Weinberger
No abstract text is available yet for this article.
December 1, 2016: Epidemiology
https://www.readbyqxmd.com/read/27922530/re-chemical-composition-of-fine-particulate-matter-and-life-expectancy-in-95-us-counties
#18
Frederick W Lipfert
No abstract text is available yet for this article.
December 1, 2016: Epidemiology
https://www.readbyqxmd.com/read/27922529/prevention-of-developmental-neurotoxicity
#19
Philippe Grandjean, Reiko Kishi, Manolis Kogevinas
No abstract text is available yet for this article.
December 1, 2016: Epidemiology
https://www.readbyqxmd.com/read/27922528/lung-cancer-risk-associated-with-regulated-and-unregulated-chrysotile-asbestos-fibers
#20
Ghassan B Hamra, David B Richardson, John Dement, Dana Loomis
BACKGROUND: Regulation of asbestos fibers in the workplace is partly determined by which fibers can be visually counted. However, a majority of fibers are too short and thin to count this way and are, consequently, not subject to regulation. METHODS: We estimate lung cancer risk associated with asbestos fibers of varying length and width. We apply an order-constrained prior both to leverage external information from toxicological studies of asbestos health effects...
December 1, 2016: Epidemiology
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