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American Journal of Epidemiology

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https://www.readbyqxmd.com/read/28453789/serum-tumor-necrosis-factor-receptor-1-is-associated-with-trajectories-of-functional-status-the-northern-manhattan-study
#1
Mandip S Dhamoon, Ying-Kuen Cheung, Yeseon P Moon, Clinton B Wright, Joshua Z Willey, Ralph L Sacco, Mitchell S V Elkind
We hypothesized that tumor necrosis factor receptor-1 (TNFR1) levels are associated with long-term trajectories of functional status independently of vascular risk factors and stroke and myocardial infarction (MI) occurring during follow-up. In the Northern Manhattan Study, stroke-free individuals in northern Manhattan aged >40 years had annual assessments with the Barthel index (BI) for a median of 13 years. Baseline demographics, risk factors, and laboratory studies included TNFR1 (n = 1,863). Generalized estimating equation models estimated standardized associations between TNFR1 and 1) baseline functional status and 2) change in function over time, adjusting for demographics, vascular risk factors, social variables, cognition, and depression, and stroke and MI occurring during follow-up...
April 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28453663/rasmussen-torvik-et-al-respond-to-the-perfect-measure-of-diastolic-dysfunction
#2
Laura J Rasmussen-Torvik, Laura A Colangelo, Joao A C Lima, David R Jacobs, Carlos J Rodriguez, Samuel S Gidding, Donald M Lloyd-Jones, Sanjiv J Shah
No abstract text is available yet for this article.
April 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28453646/protecting-confidentiality-in-cancer-registry-data-with-geographic-identifiers
#3
Mandi Yu, Jerome Phillip Reiter, Li Zhu, Benmei Liu, Kathleen A Cronin, Eric J Rocky Feuer
The National Cancer Institute's Surveillance, Epidemiology, and End Results Program releases research files of cancer registry data. These files include geography at the county level, but no finer. Access to finer geography, such as tract identifiers, would enable richer analyses, for example, examination of health disparities across neighborhoods. To date, tract identifiers are left off the research files because they could compromise the confidentiality of patients' identities. We present an approach to include tract identifiers based on multiply-imputed, synthetic data...
April 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28453616/prevalence-and-predictors-of-diastolic-dysfunction-according-to-different-classification-criteria-the-coronary-artery-risk-development-in-young-in-adults-study
#4
Laura J Rasmussen-Torvik, Laura A Colangelo, Joao A C Lima, David R Jacobs, Carlos J Rodriguez, Samuel S Gidding, Donald M Lloyd-Jones, Sanjiv J Shah
Heart failure with preserved ejection fraction is often preceded by diastolic dysfunction (DD). Of several published DD criteria, it is unclear which, if any, are applicable to data obtained in epidemiologic cohorts. We evaluated the prevalence of DD using previously published definitions in a population-based study, the Coronary Artery Risk Development in Young Adults (CARDIA) Study, using data gathered in 2010-2011. Echocardiography was performed on 3,474 individuals (mean age = 50.2 years) at the CARDIA year 25 examination...
April 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28453609/invited-commentary-searching-for-the-perfect-measure-of-diastolic-dysfunction-a-futile-exercise
#5
Ambarish Pandey, Jarett D Berry
Heart failure with preserved ejection fraction (HFpEF) is common, recalcitrant to treatment, and associated with poor outcomes. Diastolic dysfunction (DD) is an independent predictor of HFpEF risk, associated clinical manifestations, and long-term outcomes. However, the usefulness of diastolic function assessment is limited by the heterogeneity in the existing definitions of DD. In this issue of the Journal, Rasmussen-Torvik et al. (Am J Epidemiol. 2017;000(00):000-000) have highlighted this problem by evaluating the prevalence and concordance of 4 established definitions of DD in the Coronary Artery Risk Development in Young Adults (CARDIA) cohort...
April 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28453608/time-dependent-associations-between-body-composition-physical-activity-and-current-asthma-in-women-using-marginal-structural-models
#6
Annabelle Bédard, Ignasi Serra, Orianne Dumas, Xavier Basagaña, Françoise Clavel-Chapelon, Nicole Le Moual, Margaux Sanchez, Valérie Siroux, Raphaëlle Varraso, Judith Garcia-Aymerich
The role of obesity in asthma is well-known in adults, and has been partly attributed to a confounding role of physical inactivity. However, the interrelations between obesity, physical activity and asthma have been incompletely addressed, likely because their time-dependent and bidirectional nature represent a methodologically challenging research question. We aimed to estimate the independent causal effects of body mass index (BMI) and physical activity on current asthma using marginal structural models (MSMs)...
April 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28453607/determining-best-strategies-for-maternally-targeted-pertussis-vaccination-using-an-individual-based-model
#7
Patricia Therese Campbell, Jodie McVernon, Nicholas Geard
Rising pertussis incidence has prompted a number of countries to implement maternally-targeted vaccination to protect vulnerable infants, but questions remain about optimal design of such vaccination strategies. We simulated pertussis transmission within an individual based model parameterized to match Australian conditions, explicitly linking infants and their mothers to estimate the effectiveness of alternative maternally-targeted vaccination strategies (antenatal versus postnatal delivery) and the benefit of revaccination over multiple pregnancies...
April 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28453606/determinants-of-change-in-objectively-assessed-sleep-duration-among-older-men
#8
Stephen F Smagula, Stephanie Harrison, Jane A Cauley, Sonia Ancoli-Israel, Peggy M Cawthon, Steve Cummings, Katie L Stone
We examined potential risk factors for changes in objectively assessed sleep duration within a large sample of community-dwelling older men. Participants (n = 1,055; mean baseline age = 74.6 (standard deviation (SD), 4.7) years) had repeated ActiGraph assessments (ActiGraph LLC, Pensacola, Florida) taken at the baseline (2003-2005) and follow-up (2009-2012) waves of the Outcomes of Sleep Disorders in Older Men Study (an ancillary study to the Osteoporotic Fractures in Men (MrOS) Study conducted in 6 US communities)...
April 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28453604/modelling-seasonal-and-spatio-temporal-variation-in-respiratory-prescribing
#9
Eleni Sofianopoulou, Tanja Pless-Mulloli, Stephen Rushton, Peter J Diggle
Many measures of chronic diseases including respiratory disease exhibit seasonal variation together with residual correlation between consecutive time-periods and neighboring areas. We demonstrate a modern strategy for modelling data that exhibit both seasonal trend and spatio-temporal correlation, through an application to respiratory prescribing. We analyzed 55 months (2002-2006) of prescribing data, in the northeast of England, UK. We estimated the seasonal pattern of prescribing by fitting a dynamic harmonic regression (DHR) model to salbutamol prescribing in relation to temperature...
April 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28453601/time-spent-commuting-to-work-and-mental-health-evidence-from-13-waves-of-an-australian-cohort-study
#10
Allison Milner, Hannah Badland, Anne Kavanagh, Anthony D LaMontagne
Time-related stressors, such as long working hours, are recognized as being detrimental to health. We considered whether time spent commuting to work was a risk factor for poor mental health. Data from the Household, Income Labour Dynamics in Australia Survey were used to conduct fixed-effects longitudinal regression analyses. The outcome variable was the Mental Health Inventory, and the main exposure represented hours per week traveling to and from a place of paid employment. Effect modifiers included sex, low job control, high demands, and low job security...
April 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28449023/racial-disparities-in-blood-pressure-trajectories-of-preterm-children-the-role-of-family-and-neighborhood-socioeconomic-status
#11
Thomas E Fuller-Rowell, David S Curtis, Pamela K Klebanov, Jeanne Brooks-Gunn, Gary W Evans
Racial disparities in cardiovascular disease mortality in the United States remain substantial. However, the childhood roots of these disparities are not well understood. In the current study, we examined racial differences in blood pressure trajectories across early childhood in a sample of African-American and European-American low-birth-weight preterm infants. Family and neighborhood socioeconomic status (SES), measured at baseline, were also examined as explanations for subsequent group disparities. Analyses focused on 407 African-American and 264 European-American children who participated in the Infant Health and Development Program, a US longitudinal study of preterm children born in 1985...
April 25, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28444119/spatial-variability-in-adhd-related-behaviors-among-children-born-to-mothers-residing-near-the-new-bedford-harbor-superfund-site
#12
Verónica M Vieira, M Patricia Fabian, Thomas F Webster, Jonathan I Levy, Susan A Korrick
Attention-deficit/hyperactivity disorder (ADHD) has an uncertain etiology, with potential contributions from different risk factors such as prenatal environmental exposure to organochlorines and metals, social risk factors, and genetics. The degree to which geographic variability in ADHD is independent of, or explained by, risk factors may provide etiological insight. We investigated determinants of geographic variation in ADHD-related behaviors among children living near the polychlorinated biphenyl-contaminated New Bedford Harbor (NBH) Superfund site in Massachusetts...
April 24, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28444113/prenatal-exposure-to-fever-and-infections-and-academic-performance-a-multilevel-analysis
#13
Julie Werenberg Dreier, Gabriele Berg-Beckhoff, Per Kragh Andersen, Anne-Marie Nybo Andersen
Prenatal exposure to fever and infections has been linked to various neurodevelopmental disorders, but it is not yet known whether more subtle effects on neurodevelopment may exist as well. Therefore, we aimed to investigate whether these early-life exposures were associated with academic performance in childhood and early adolescence. Children and mothers who were enrolled in the Danish National Birth Cohort during 1996-2002 were included in this study. Information on fever and infections common in pregnancy was prospectively collected in 2 pregnancy interviews and linked with assessments of academic performance from the 2010-2013 Danish National Tests...
April 24, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28444145/parental-separation-and-cardiometabolic-risk-factors-in-late-adolescence-a-cross-cohort-comparison
#14
Ana Luiza Gonçalves Soares, Helen Gonçalves, Alicia Matijasevich, Maija Sequeira, George Davey Smith, Ana M B Menezes, Maria Cecília Assunção, Fernando C Wehrmeister, Abigail Fraser, Laura D Howe
The aim of this study was to explore the association between parental separation during childhood (up to 18 years of age) and cardiometabolic risk factors (body mass index, fat mass index, blood pressure, physical activity, smoking, and alcohol consumption) in late adolescence using a cross-cohort comparison and to explore whether associations differ according to the age at which the parental separation occurred and the presence or absence of parental conflict prior to separation. Data from the Avon Longitudinal Study of Parents and Children (ALSPAC, United Kingdom) (1991-2011) and the 1993 Pelotas Birth Cohort (Brazil) (1993-2011) were used...
April 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28444120/premenopausal-hysterectomy-and-risk-of-ovarian-cancer-in-african-american-women
#15
Lauren C Peres, Anthony J Alberg, Elisa V Bandera, Jill Barnholtz-Sloan, Melissa Bondy, Michele L Cote, Ellen Funkhouser, Patricia G Moorman, Edward S Peters, Ann G Schwartz, Paul D Terry, Sarah E Abbott, Fabian Camacho, Frances Wang, Joellen M Schildkraut
Although the inverse association between hysterectomy and epithelial ovarian cancer (EOC) was considered well established, investigators in recent studies including women diagnosed after 2000 have observed modest increases in risk. Most studies have been conducted in white women with little representation of African-American women. We examined the relationship between premenopausal hysterectomy and EOC in African-American women and explored whether hormone therapy (HT) modified this association in 614 cases and 743 controls enrolled in the African American Cancer Epidemiology Study (2010-2015)...
April 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28444117/exposure-opportunity-the-advantages-of-including-men-in-analyses-of-female-related-risk-factors
#16
Kirsten Rozemeijer, Saskia le Cessie, Astrid van Hylckama Vlieg, Frits R Rosendaal, Jan P Vandenbroucke, Charles Poole, Suzanne C Cannegieter
Intuitively, researchers do not include subjects who do not have the opportunity to be exposed, such as men in studies on oral contraceptives (OCs). We aimed to explore in which situations it is nevertheless beneficial to do so. We considered the effect of including men in case-control analyses of 8 different hypothetical data sets on the effect of OC use and venous thrombosis. In all scenarios, OC use was the exposure of interest, sex the factor that determined exposure opportunity, and air travel another risk factor...
April 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28444109/temporal-changes-in-mortality-related-to-extreme-temperatures-for-15-cities-in-northeast-asia-adaptation-to-heat-and-maladaptation-to-cold
#17
Yeonseung Chung, Heesang Noh, Yasushi Honda, Masahiro Hashizume, Michelle L Bell, Yue-Liang Leon Guo, Ho Kim
Understanding how the temperature-mortality association worldwide changes over time is crucial to addressing questions of human adaptation under climate change. Previous studies investigated the temporal changes in the association over a few discrete time frames or assumed a linear change. Also, most studies focused on attenuation of heat-related mortality and studied the United States or Europe. This research examined continuous temporal changes (potentially nonlinear) in mortality related to extreme temperature (both heat and cold) for 15 cities in Northeast Asia (1972-2009)...
April 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28444106/the-association-of-air-pollution-with-pubertal-development-evidence-from-hong-kong-s-children-of-1997-birth-cohort
#18
Jian V Huang, Gabriel M Leung, C Mary Schooling
Many pollutants are endocrine disruptors with impacts on reproduction and health in animals, but evidence in humans, of which sex-specific effects on pubertal development may be an indicator, is less clear. We examined the association of air pollution in utero and during early life with pubertal development in Hong Kong, China, an area with a high level of air pollution compared with other similarly developed cities. We assessed sex-specific associations of particulate matter less than or equal to 10 μm in diameter (PM10), nitric oxide, sulfur dioxide, and nitrogen dioxide in different growth phases with clinically assessed pubertal stage at approximately age 11 years (as indicated by Tanner stage) in a large population-representative birth cohort, the "Children of 1997...
April 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28430851/accuracy-of-offspring-reported-parental-hip-fractures-a-novel-population-based-parent-offspring-record-linkage-study
#19
Lisa M Lix, William D Leslie, Shuman Yang, Lin Yan, Randy Walld, Suzanne N Morin, Sumit R Majumdar, Leslie L Roos
The objective of this study was to test the validity of offspring-reported parental hip fracture in a unique bone mineral density (BMD) registry linked to administrative databases spanning 4 decades. Population-based data were from Manitoba, Canada, and included hospital abstracts, health insurance registrations, and the provincewide BMD registry. The cohort included individuals aged ≥40 years with BMD tests and self-reports of parental hip fracture between 2006 and 2014. Population registry data for 1966-2014 were used to link offspring with their parents, and hospital records were used to ascertain parental fractures...
April 20, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28430841/associations-of-early-and-later-childhood-poverty-with-child-cognitive-function-in-indonesia-effect-decomposition-in-the-presence-of-exposure-induced-mediator-outcome-confounding
#20
Amelia Maika, Murthy N Mittinty, Sally Brinkman, John Lynch
The amount of family financial resources available in early life influences child health and development. Using data from the 2000 and 2007 waves of the Indonesian Family Life Survey, we estimated the associations of early-life poverty (at age <7 years) and poverty in later childhood (at age 7-14 years) with cognitive function at age 7-14 years. Our analysis provided little support for the idea that an early intervention to support household income has a larger effect than intervention later in childhood; both seemed equally important...
April 20, 2017: American Journal of Epidemiology
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