journal
MENU ▼
Read by QxMD icon Read
search

American Journal of Epidemiology

journal
https://www.readbyqxmd.com/read/28679174/invited-commentary-causal-inference-across-space-and-time-quixotic-quest-worthy-goal-or-both
#1
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;000(0):000-000) 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...
June 30, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28679165/age-period-and-cohort-effects-in-conduct-problems-among-american-adolescents-from-1991-through-2015
#2
Katherine M Keyes, Dahsan S Gary, Jordan Beardslee, Seth J Prins, Patrick M O'Malley, Caroline Rutherford, John Schulenberg
While arrest rates for juvenile offenses have substantially decreased since the 1990s, U.S. national trends in conduct problems are unknown. Population variation in conduct problems would imply changes in the social environment, including emergent or receding risk factors. The present study separated age, period, and cohort effects in conduct problems using nationally representative surveys of 375,879 U.S. students, conducted annually, 1991-2015. Summed score of seven items measuring frequency of conduct problems was the outcome...
June 30, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28679157/heterogeneity-in-estimates-of-the-impact-of-influenza-on-population-mortality-a-systematic-review
#3
Li Li, Jessica Y Wong, Peng Wu, Helen S Bond, Eric H Y Lau, Sheena G Sullivan, Benjamin J Cowling
Influenza viruses are associated with substantial global burden of morbidity and mortality every year. Estimates of influenza-associated mortality often vary between studies due to differences in study settings, methods and measurement of outcomes. We reviewed 103 published articles assessing population-based influenza-associated mortality through searching PubMed and Embase, and identified considerable variation in the statistical methods used across studies. In studies using regression models with an influenza activity proxy, four approaches were applied to estimate the influenza-associated mortality...
June 30, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28679156/no-evidence-of-transfusion-transmission-of-celiac-disease
#4
Jonas F Ludvigsson, Benjamin Lebwohl, Peter H R Green, Joseph A Murray, Henrik Hjalgrim, Gustaf Edgren
The vast majority of patients with Celiac disease (CD) have disease-specific antibodies. If such antibodies-or another blood-borne factor involved in the causation of CD-are transmissible, it might be reflected by an increased risk of CD in individuals receiving blood from donors with incipient CD. In a retrospective nationwide cohort study of 1,058,289 individuals who received a blood transfusion between 1968 and 2012 in Sweden we examined the risk of transmission of CD (here defined as having villous atrophy on small intestinal biopsy) using Cox regression...
June 30, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28673036/invited-commentary-agent-based-models-bias-in-the-face-of-discovery
#5
Katherine M Keyes, Melissa Tracy, Stephen J Mooney, Aaron Shev, Magdalena Cerdá
Agent-based models (ABMs) have grown in popularity in epidemiologic applications, but the assumptions necessary for valid inference have only partially been articulated. In this issue, Murray et al. (Am J Epidemiol. 2017;000(0):000-000) provided a much-needed analysis of the consequence of some of these assumptions, comparing analysis using an ABM to a similar analysis using the parametric g-formula. In particular, their work focused on the biases that can arise in ABMs that use parameters drawn from distinct populations whose causal structures and baseline outcome risks differ...
June 30, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28673024/ancestry-adjusted-vitamin-d-metabolite-concentrations-in-association-with-cytochrome-3a-cyp3a-polymorphisms
#6
Robin Taylor Wilson, Loren D Masters, Jill S Barnholtz-Sloan, Anna C Salzberg, Terryl J Hartman
This study investigates the association between genetic polymorphisms in CYP2R1, CYP24A1 and the CYP3A family with non-summer plasma concentrations of 25(OH)D3 and proportion 24,25(OH)2D3 among healthy individuals of Sub-Saharan African and European ancestry matched on age (±5 years; n = 188 in each ancestral group) in central suburban Pennsylvania (2006-09). Vitamin D metabolites were measured using high-performance liquid chromatography/tandem mass spectrometry. Paired multiple regression and adjusted least square means analyses were used to test for associations between genotype and log-transformed metabolite concentrations, adjusted for age, sex, West African genetic ancestry proportion, body mass index, oral contraceptive (OC) use, tanning bed use, vitamin D intake, days from summer solstice, time of day, and isoforms of the vitamin D receptor (VDR) and vitamin D binding protein...
June 30, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28641392/alcohol-is-not-protective-against-mortality-following-traumatic-brain-injury
#7
Jennifer S Albrecht, Majid Afshar, Deborah M Stein, Gordon S Smith
Alcohol exposure results in reduced mortality following traumatic brain injury (TBI) in animal models, yet clinical studies reported conflicting results and clinical trials based on proposed mechanisms have been disappointing. Methodological issues common to many of the clinical studies may have contributed to spurious results. Our objective was to evaluate the association between blood alcohol concentration (BAC) and in-hospital mortality following TBI, overcoming methodological problems of prior studies. We conducted a retrospective cohort study on individuals treated for isolated TBI at the R Adams Cowley Shock Trauma Center between 1997-2012 (n = 1,084)...
June 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28641390/racial-and-ethnic-disparities-in-the-incidence-of-esophageal-cancer-in-the-united-states-1992-2013
#8
Shao-Hua Xie, Sirus Rabbani, Jessica Petrick, Michael B Cook, Jesper Lagergren
Racial and ethnic disparities in the incidence of esophageal cancer have not been thoroughly characterized with quantitative health disparity measures. Using data from 13 cancer registries in the Surveillance, Epidemiology, and End Results database, we assessed such disparities by histological type during 1992-2013 in the United States based on a variety of disparity metrics. The age-standardized incidence rate of squamous cell carcinoma was highest among blacks, while adenocarcinoma mainly affected white men...
June 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28641376/height-weight-and-aerobic-fitnessin-relation-to-risk-of-atrial-fibrillation
#9
Casey Crump, Jan Sundquist, Marilyn A Winkleby, Kristina Sundquist
Tall stature or obesity has been associated with higher risk of atrial fibrillation (AF), but reported effects of aerobic fitness have been conflicting. A national cohort study was conducted to examine interactions between height or weight and aerobic fitness among 1,547,478 Swedish military conscripts during 1969-1997 (97-98% of all 18-year-old males) in relation to AF identified from nationwide inpatient and outpatient diagnoses through 2012 (maximum age 62). Increased height, weight, or aerobic fitness (but not muscular strength) at age 18 was associated with higher AF risk in adulthood...
June 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28641374/intergenerational-socioeconomic-mobility-and-adult-depression-the-constances-study
#10
Maria Melchior, Abdelkrim Ziad, Emilie Courtin, Marcel Goldberg, Marie Zins, Judith van der Waerden
Socioeconomic mobility from childhood onwards may predict depression risk in adulthood. Using data from the nationally representative CONSTANCES study in France (2012-2014, n = 67,057), we assessed the relationship between intergenerational socioeconomic mobility and adult depression (Center for Epidemiological Studies-Depression scale, > = 16 in men, > = 20 in women) and antidepressant use. Socioeconomic position was ascertained by occupational grade (childhood: maternal and paternal measures prior to age 15 years combined; adult: participant own)...
June 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28641373/estimating-influenza-vaccine-effectiveness-in-the-test-negative-design-using-alternative-control-groups-a-systematic-review-and-meta-analysis
#11
Shuo Feng, Benjamin J Cowling, Heath Kelly, Sheena G Sullivan
One important assumption in case-control studies is that control selection should be independent of exposure. Nevertheless, it has been hypothesized that virus interference might lead to a correlation between receipt of influenza vaccination and increased risk of infection with other respiratory viruses. We investigated if such a phenomenon might affect a commonly used study design to estimate influenza vaccination effectiveness (VE). We searched publications in Medline, PubMed and Web of Science. Twelve studies were identified reporting VE estimates using the test-negative design by three alternative control groups: (1) all patients testing negative for influenza, VEFLU-, (2) patients who tested positive for other respiratory viruses, VEORV+, or (3) patients who tested negative for all viruses tested, VEPAN-...
June 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28641372/comparison-of-sociodemographic-and-health-related-characteristics-of-uk-biobank-participants-with-the-general-population
#12
Anna Fry, Thomas J Littlejohns, Cathie Sudlow, Nicola Doherty, Ligia Adamska, Tim Sprosen, Rory Collins, Naomi E Allen
UK Biobank is a population-based cohort of 500,000 participants recruited between 2006 and 2010. Approximately 9.2 million individuals aged 40-69 years who lived within 25 miles of the 22 assessment centres in England, Wales and Scotland were invited, and 5.4% participated in the baseline assessment. The representativeness of the UK Biobank cohort was investigated by comparing demographic characteristics between non-responders and responders. Sociodemographic, physical, lifestyle and health-related characteristics of the cohort were compared with nationally representative data sources...
June 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28641369/markers-of-inflammation-and-incident-breast-cancer-risk-in-the-women-s-health-study
#13
Deirdre K Tobias, Akintunde O Akinkuolie, Paulette D Chandler, Patrick R Lawler, JoAnn E Manson, Julie E Buring, Paul M Ridker, Lu Wang, I-Min Lee, Samia Mora
Chronic inflammation may be a risk factor for breast cancer development and progression, yet which inflammatory biomarkers and pathways are relevant is unknown. The study included 27,071 Women's Health Study participants (mean, 54.5 years old) free of cancer and cardiovascular disease at enrollment (1992 to 1995) with baseline measures of four inflammatory biomarkers: high sensitivity C-reactive protein (hsCRP), fibrinogen, N-acetyl side-chains of acute phase proteins (GlycA), and soluble intercellular adhesion molecule-1 (sICAM-1)...
June 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28641367/annual-crop-yield-variation-child-survival-and-nutrition-among-subsistence-farmers-in-burkina-faso
#14
Kristine Belesova, Antonio Gasparrini, Ali Sié, Rainer Sauerborn, Paul Wilkinson
Whether year to year variation in crop yields affects the nutrition, health, and survival of subsistence farming populations is relevant to the understanding of the potential impacts of climate change. However, the empirical evidence is limited. We examined the association of child survival with inter-annual variation in food crop yield and middle-upper arm circumference (MUAC) in a subsistence farming population of rural Burkina Faso. The study was of 44,616 children < 5 years of age included in the Nouna Health and Demographic Surveillance System, 1992-2012, whose survival was analysed in relation to the food crop yield in the year of birth (which ranged from 65% to 120% of the period average) and, for a subset of 16,698 children, to MUAC, using shared frailty Cox proportional hazards models...
June 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28641366/human-papillomavirus-vaccine-dose-effectiveness-against-incident-genital-warts-in-a-cohort-of-insured-us-females
#15
Susan Hariri, Megan S Schuler, Allison L Naleway, Matthew F Daley, Sheila Weinmann, Bradley Crane, Sophia R Newcomer, Dennis Tolsma, Lauri E Markowitz
We examined effectiveness of HPV vaccination by dose number and interval against incident genital warts in a cohort of 64,517 females in the United States during 8/2006-9/2012. Eligible females were classified into 0, 1-dose, 2-dose < 6 months apart, 2-dose ≥6 months apart, and 3-dose groups and followed until genital wart diagnosis, loss to follow-up, or end of study. Propensity score weights were used to balance baseline differences across groups. To account for latent genital warts before vaccination, 6-month and 12-month buffer periods from last and first vaccine dose, respectively, were applied...
June 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28637333/infections-in-early-life-and-development-of-celiac-disease
#16
Andreas Beyerlein, Ewan Donnachie, Anette-Gabriele Ziegler
Early infections have been suggested to be associated with increased risk for later celiac disease (CD). We analyzed prospective claims data of n = 295,420 infants from Bavaria, Germany, born between 2005 and 2007 containing information on medically attended infectious diseases according to ICD-10 code on a quarterly basis to calculate hazard ratios and 95% confidence intervals of time to CD diagnosis by infection exposure, adjusting for sex, calendar month of birth and number of previous healthcare visits...
June 16, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28637302/re-risk-prediction-for-epithelial-ovarian-cancer-in-11-united-states-based-case-control-studies-incorporation-of-epidemiologic-risk-factors-and-17-confirmed-genetic-loci
#17
(no author information available yet)
No abstract text is available yet for this article.
June 16, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28637238/chlamydia-trachomatis-seroprevalence-and-ultrasound-diagnosed-uterine-fibroids-in-a-large-population-of-young-african-american-women
#18
Kristen R Moore, Jennifer S Smith, Stephen R Cole, Dirk P Dittmer, Victor J Schoenbach, Donna D Baird
Reproductive tract infections have long been hypothesized to increase fibroid risk. Few studies have been conducted, even for the common infection, genital Chlamydia trachomatis (gCT), and only with self-reported gCT data. Our investigation used micro-immunofluorescence serology for gCT to characterize past exposure. We used cross-sectional enrollment data from a prospective fibroid study in the Detroit, Michigan area; ultrasound examinations systematically screened for fibroids. Participants were African-American women ages 23-34 (recruited 2010-2012)...
June 16, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28637230/perceived-stress-and-its-relationship-with-chronic-conditions-and-multimorbidity-among-229-293-community-dwelling-adults-in-44-low-and-middle-income-countries
#19
Davy Vancampfort, Ai Koyanagi, Philip B Ward, Nicola Veronese, André F Carvalho, Marco Solmi, James Mugisha, Simon Rosenbaum, Marc De Hert, Brendon Stubbs
This study assessed the association of chronic conditions and multimorbidity with perceived stress among community-dwelling adults in 44 low- and middle-income countries. Data were analyzed from the World Health Survey (2002-2004) including 229,293 adults. A perceived stress score [range 0 (lowest stress) -100 (highest stress)] was computed based on two questions from the Perceived Stress Scale. Eleven chronic conditions were assessed. Multivariable linear regression analyses were conducted to explore the associations...
June 16, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28637226/epidemiologic-risk-factors-for-in-situ-and-invasive-breast-cancer-among-postmenopausal-women-in-the-nih-aarp-diet-and-health-study
#20
Maeve Mullooly, Zeina G Khodr, Cher M Dallal, Sarah J Nyante, Mark E Sherman, Roni Falk, Linda M Liao, Jeffrey Love, Louise A Brinton, Gretchen L Gierach
Comparing risk factor associations between invasive breast cancers and possible precursors may further understanding of factors related to initiation versus progression. Accordingly, among 190,325 postmenopausal participants in the National Institutes of Health-AARP Diet and Health Study (1995-2011), we compared risk factor associations between incident ductal carcinoma in situ (DCIS: n = 1,453) and invasive ductal carcinomas (n = 7,525) and lobular carcinoma in situ (LCIS: n = 186) and invasive lobular carcinomas (n = 1,191)...
June 16, 2017: American Journal of Epidemiology
journal
journal
20013
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"