The Use of a Binary Composite Endpoint and Sample Size Requirement: Influence of Endpoints Overlap.
D, Gómez G Abstract Although composite endpoints (CE) are common in clinical trials, the impact of the relationship between the components of a binary CE on the sample size requirement (SSR) has not been addressed. We performed a computational study considering 2 treatments and a CE with 2 components: the relevant endpoint (RE) and the additional endpoint (AE). We assessed the strength of the components' interrelation by the degree of relative overlap between them, which was stratified into 5 groups. Within each stratum, SSR was computed for multiple scenarios by varying the events proportion and the effect...
Source: Am J Epidemiol - April 10, 2017 Category: Epidemiology Authors: Marsal JR, Ferreira-González I, Bertran S, Ribera A, Permanyer-Miralda G, García-Dorado D, Gómez G Tags: Am J Epidemiol Source Type: research

Modeled and Perceived Exposure to Radio-Frequency Electromagnetic Fields From Mobile-Phone Base Stations and the Development of Symptoms Over Time in a General Population Cohort.
Abstract We assessed associations between modeled and perceived exposure to radio-frequency electromagnetic fields (RF-EMF) from mobile-phone base stations and the development of nonspecific symptoms and sleep disturbances over time. A population-based Dutch cohort study, the Occupational and Environmental Health Cohort Study (AMIGO) (n = 14,829; ages 31-65 years), was established in 2011/2012 (T0), with follow-up of a subgroup (n = 3,992 invited) in 2013 (T1; n = 2,228) and 2014 (T2; n = 1,740). We modeled far-field RF-EMF exposure from mobile-phone base stations at the hom...
Source: Am J Epidemiol - April 7, 2017 Category: Epidemiology Authors: Martens AL, Slottje P, Timmermans DR, Kromhout H, Reedijk M, Vermeulen RC, Smid T Tags: Am J Epidemiol Source Type: research

Ascertainment of vital status among people with criminal justice involvement using department of corrections records, the us national death index, and social security master death files.
PMID: 28387782 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - April 6, 2017 Category: Epidemiology Authors: Binswanger IA, Morenoff JD, Chilcote CA, Harding DJ Tags: Am J Epidemiol Source Type: research

Food Environment and Weight Change: Does Residential Mobility Matter?: The Diabetes Study of Northern California (DISTANCE).
In this study, we assessed the within-individual association between change in food environment from 2006 to 2011 and change in BMI among adults with type 2 diabetes using clinical data from the Kaiser Permanente Diabetes Registry collected from 2007 to 2011. Healthy food environment was measured using the kernel density of healthful food venues. Fixed-effects models with a 1-year-lagged BMI were estimated. Separate models were fitted for persons who moved and those who did not. Sensitivity analysis using different lag times and kernel density bandwidths were tested to establish the consistency of findings. On average, pat...
Source: Am J Epidemiol - April 6, 2017 Category: Epidemiology Authors: Laraia BA, Downing JM, Zhang YT, Dow WH, Kelly M, Blanchard SD, Adler N, Schillinger D, Moffet H, Warton EM, Karter AJ Tags: Am J Epidemiol Source Type: research

Metabolic Mediators of the Association Between Adult Weight Gain and Colorectal Cancer: Data From the European Prospective Investigation into Cancer and Nutrition (EPIC) Cohort.
, Khaw KT, Riboli E, Boeing H Abstract Evidence indicates that gaining weight in adult life is associated with an elevated risk of colorectal cancer; however, biological mechanisms that may explain this association remain unclear. We evaluated the mediation effect of 20 different biomarkers on the relationship between adult weight gain and colorectal cancer, using data from a prospective nested case-control study of 452 incident cases diagnosed between 1992 and 2003 and matched within risk sets to 452 controls within the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. The proportions of...
Source: Am J Epidemiol - April 6, 2017 Category: Epidemiology Authors: Aleksandrova K, Schlesinger S, Fedirko V, Jenab M, Bueno-de-Mesquita B, Freisling H, Romieu I, Pischon T, Kaaks R, Gunter MJ, Dahm CC, Overvad K, Rostgaard-Hansen AL, Tjønneland A, Trichopoulou A, Bamia C, Lagiou P, Agnoli C, Mattiello A, Bradbury K, Kha Tags: Am J Epidemiol Source Type: research

The Associations Between Retirement and Cardiovascular Disease Risk Factors in China: A 20-Year Prospective Study.
This study suggests that retirement may be beneficial for blood pressure, waist circumference, and alcohol consumption in the Chinese context. Understanding the potential health influence of retirement is essential, given plans to raise the retirement age in China. PMID: 28383631 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - April 5, 2017 Category: Epidemiology Authors: Xue B, Head J, McMunn A Tags: Am J Epidemiol Source Type: research

Re: "practical guidance for conducting mediation analysis with multiple mediators using inverse odds ratio weighting".
RE: "PRACTICAL GUIDANCE FOR CONDUCTING MEDIATION ANALYSIS WITH MULTIPLE MEDIATORS USING INVERSE ODDS RATIO WEIGHTING". Am J Epidemiol. 2017 Apr 03;:730 Authors: PMID: 28379286 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - April 3, 2017 Category: Epidemiology Tags: Am J Epidemiol Source Type: research

Associations of Continuity and Change in Early Neighborhood Poverty With Adult Cardiometabolic Biomarkers in the United States: Results From the National Longitudinal Study of Adolescent to Adult Health, 1995-2008.
Abstract Limitations of extant research on neighborhood disadvantage and health include general reliance on point-in-time neighborhood measures and sensitivity to residential self-selection. Using data from the US Census and the 1995-2008 National Longitudinal Study of Adolescent to Adult Health, we applied conventional methods and coarsened exact matching to assess how cardiometabolic health varies among those entering, exiting, or remaining in poor and nonpoor neighborhoods. Within the full sample (n = 11,767), we found significantly higher systolic and diastolic blood pressures among those who entered...
Source: Am J Epidemiol - April 3, 2017 Category: Epidemiology Authors: Lippert AM, Evans CR, Razak F, Subramanian SV Tags: Am J Epidemiol Source Type: research

The authors reply.
THE AUTHORS REPLY. Am J Epidemiol. 2017 Mar 29;:1-2 Authors: Hutcheon JA, Fell DB, Jackson ML, Kramer MS, Ortiz JR, Savitz DA, Platt RW PMID: 28369158 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - March 29, 2017 Category: Epidemiology Authors: Hutcheon JA, Fell DB, Jackson ML, Kramer MS, Ortiz JR, Savitz DA, Platt RW Tags: Am J Epidemiol Source Type: research

The Association Between Air Pollution and Onset of Depression Among Middle-Aged and Older Women.
Abstract Despite recently reported associations between air pollution and acute psychiatric outcomes, the association with depression onset has not, to our knowledge, been previously examined. We conducted a prospective cohort study among 41,844 women in the Nurses' Health Study, in the United States. The women had an average age of 66.6 (standard deviation, 7.6) years, were depression-free in 1996, and were followed through 2008. May-September ozone exposures were predicted by interpolating concentrations from the 5 nearest monitors. One-, 2-, and 5-year average concentrations of particulate matter with an a...
Source: Am J Epidemiol - March 29, 2017 Category: Epidemiology Authors: Kioumourtzoglou MA, Power MC, Hart JE, Okereke OI, Coull BA, Laden F, Weisskopf MG Tags: Am J Epidemiol Source Type: research

Dairy Food Intake and All-Cause, Cardiovascular Disease, and Cancer Mortality: The Golestan Cohort Study.
Abstract We investigated the association between dairy product consumption and all-cause, cardiovascular disease (CVD), and cancer mortality in the Golestan Cohort Study, a prospective cohort study launched in January 2004 in Golestan Province, northeastern Iran. A total of 42,403 men and women participated in the study and completed a diet questionnaire at enrollment. Cox proportional hazards models were used to estimate hazard ratios and 95% confidence intervals. We documented 3,291 deaths (1,467 from CVD and 859 from cancer) during 11 years of follow-up (2004-2015). The highest quintile of total dairy product c...
Source: Am J Epidemiol - March 29, 2017 Category: Epidemiology Authors: Farvid MS, Malekshah AF, Pourshams A, Poustchi H, Sepanlou SG, Sharafkhah M, Khoshnia M, Farvid M, Abnet CC, Kamangar F, Dawsey SM, Brennan P, Pharoah PD, Boffetta P, Willett WC, Malekzadeh R Tags: Am J Epidemiol Source Type: research

Re: "detectable risks in studies of the fetal benefits of maternal influenza vaccination".
RE: "DETECTABLE RISKS IN STUDIES OF THE FETAL BENEFITS OF MATERNAL INFLUENZA VACCINATION". Am J Epidemiol. 2017 Mar 29;:1-2 Authors: De Serres G, Skowronski DM PMID: 28369245 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - March 29, 2017 Category: Epidemiology Authors: De Serres G, Skowronski DM Tags: Am J Epidemiol Source Type: research

Possible Interaction Between Cigarette Smoking and HLA-DRB1 Variation in the Risk of Follicular Lymphoma.
Abstract Follicular lymphoma (FL) risk is strongly associated with germline genetic variation in human leukocyte antigen (HLA) class II. Cigarette smoking has been suggested to increase FL risk, primarily among women. We hypothesized that amino acids in HLA-antigen D-related β1 subunit (DRB1) interact with smoking in FL risk, as shown for rheumatoid arthritis. We analyzed 373 patients with FL and 818 controls from 2 population-based case-control studies in Sweden and Denmark (1999-2003). Haplotypes in HLA-DRB1 were imputed at amino acid positions 11, 13, 28, 30, and 70-74 (shared epitope). We estimated the re...
Source: Am J Epidemiol - March 28, 2017 Category: Epidemiology Authors: Baecklund F, Foo JN, Askling J, Eloranta S, Glimelius I, Liu J, Hjalgrim H, Rosenquist R, Padyukov L, Smedby KE Tags: Am J Epidemiol Source Type: research

Am J Epidemiol; +27 new citations
27 new pubmed citations were retrieved for your search. Click on the search hyperlink below to display the complete search results: Am J Epidemiol These pubmed results were generated on 2017/03/26PubMed comprises more than millions of citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites. (Source: Am J Epidemiol)
Source: Am J Epidemiol - March 26, 2017 Category: Epidemiology Tags: Report Source Type: research

Pandemic.
PMID: 28203697 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 15, 2017 Category: Epidemiology Authors: Lofgren ET, Rapazzo KM Tags: Am J Epidemiol Source Type: research

Maternal and Early Childhood Determinants of Women's Body Size in Midlife: Overall Cohort and Sibling Analyses.
PMID: 28200097 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 15, 2017 Category: Epidemiology Authors: Ester WA, Houghton LC, Lumey LH, Michels KB, Hoek HW, Wei Y, Susser ES, Cohn BA, Terry MB Tags: Am J Epidemiol Source Type: research

Real-Time Assessment of Health-Care Requirements During the Zika Virus Epidemic in Martinique.
é A, Cauchemez S PMID: 28200111 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 15, 2017 Category: Epidemiology Authors: Andronico A, Dorléans F, Fergé JL, Salje H, Ghawché F, Signate A, Daudens-Vaysse E, Baudouin L, Dub T, Aubry M, Cao-Lormeau VM, Ledrans M, Noel H, Mallet HP, Fontanet A, Cabié A, Cauchemez S Tags: Am J Epidemiol Source Type: research

Giorgis-Allemand et al. Respond to "Ambient Environment and Preterm Birth".
Giorgis-Allemand et al. Respond to "Ambient Environment and Preterm Birth". Am J Epidemiol. 2017 Feb 15;185(4):262-263 Authors: Giorgis-Allemand L, Pedersen M, Beelen RM, Gehring U, Hoek G, Basagana X, Nieuwenhuijsen MJ, Brunekreef B, Kogevinas M, Slama R PMID: 28186525 [PubMed - in process] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 14, 2017 Category: Epidemiology Authors: Giorgis-Allemand L, Pedersen M, Beelen RM, Gehring U, Hoek G, Basagana X, Nieuwenhuijsen MJ, Brunekreef B, Kogevinas M, Slama R Tags: Am J Epidemiol Source Type: research

Re: "efficient estimation of smooth distributions from coarsely grouped data".
RE: "EFFICIENT ESTIMATION OF SMOOTH DISTRIBUTIONS FROM COARSELY GROUPED DATA". Am J Epidemiol. 2017 Feb 15;185(4):316 Authors: PMID: 28186526 [PubMed - in process] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 14, 2017 Category: Epidemiology Tags: Am J Epidemiol Source Type: research

Risk of Breast Cancer With Long-Term Use of Calcium Channel Blockers or Angiotensin-Converting Enzyme Inhibitors Among Older Women.
PMID: 28186527 [PubMed - in process] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 14, 2017 Category: Epidemiology Authors: Raebel MA, Zeng C, Cheetham TC, Smith DH, Feigelson HS, Carroll NM, Goddard K, Tavel HM, Boudreau DM, Shetterly S, Xu S Tags: Am J Epidemiol Source Type: research

Re: "controlling for informed presence bias due to the number of health encounters in an electronic health record".
RE: "CONTROLLING FOR INFORMED PRESENCE BIAS DUE TO THE NUMBER OF HEALTH ENCOUNTERS IN AN ELECTRONIC HEALTH RECORD". Am J Epidemiol. 2017 Feb 15;185(4):316 Authors: PMID: 28186532 [PubMed - in process] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 14, 2017 Category: Epidemiology Tags: Am J Epidemiol Source Type: research

Invited Commentary: Foreclosures and Health in a Neighborhood Context.
PMID: 28184426 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 10, 2017 Category: Epidemiology Authors: Arcaya MC Tags: Am J Epidemiol Source Type: research

Downing et al. Respond to "Foreclosures and Health in a Neighborhood Context".
Downing et al. Respond to "Foreclosures and Health in a Neighborhood Context". Am J Epidemiol. 2017 Feb 10;:1-2 Authors: Downing J, Laraia B, Rodriguez H, Dow WH, Adler N, Schillinger D, Warton EM, Karter AJ PMID: 28184427 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 10, 2017 Category: Epidemiology Authors: Downing J, Laraia B, Rodriguez H, Dow WH, Adler N, Schillinger D, Warton EM, Karter AJ Tags: Am J Epidemiol Source Type: research

Milk, Fruit and Vegetable, and Total Antioxidant Intakes in Relation to Mortality Rates: Cohort Studies in Women and Men.
g L PMID: 28184428 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 10, 2017 Category: Epidemiology Authors: Michaëlsson K, Wolk A, Melhus H, Byberg L Tags: Am J Epidemiol Source Type: research

Beyond the Great Recession: Was the Foreclosure Crisis Harmful to the Health of Individuals With Diabetes?
PMID: 28184432 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 10, 2017 Category: Epidemiology Authors: Downing J, Laraia B, Rodriguez H, Dow WH, Adler N, Schillinger D, Warton EM, Karter AJ Tags: Am J Epidemiol Source Type: research

Plurality of Birth and Infant Mortality Due to External Causes in the United States, 2000-2010.
PMID: 28180240 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 9, 2017 Category: Epidemiology Authors: Ahrens KA, Thoma ME, Rossen LM, Warner M, Simon AE Tags: Am J Epidemiol Source Type: research

Re: "methods for handling missing variables in risk prediction models".
RE: "METHODS FOR HANDLING MISSING VARIABLES IN RISK PREDICTION MODELS". Am J Epidemiol. 2017 Feb 08;:1 Authors: Wolfson J, Roetker NS PMID: 28174823 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 8, 2017 Category: Epidemiology Authors: Wolfson J, Roetker NS Tags: Am J Epidemiol Source Type: research

Diet-Induced Overweight and Obesity and Periodontitis Risk: An Application of the Parametric G-Formula in the 1982 Pelotas Birth Cohort.
o FF PMID: 28174825 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 8, 2017 Category: Epidemiology Authors: Nascimento GG, Peres MA, Mittinty MN, Peres KG, Do LG, Horta BL, Gigante DP, Corrêa MB, Demarco FF Tags: Am J Epidemiol Source Type: research

The Associations of Atrial Fibrillation With the Risks of Incident Invasive Breast and Colorectal Cancer.
PMID: 28174828 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 8, 2017 Category: Epidemiology Authors: Wassertheil-Smoller S, McGinn AP, Martin L, Rodriguez BL, Stefanick ML, Perez M Tags: Am J Epidemiol Source Type: research

The authors reply.
THE AUTHORS REPLY. Am J Epidemiol. 2017 Feb 08;:1 Authors: Held U, Kessels A, Garcia Aymerich J, Basagaña X, Ter Riet G, Moons KG, Puhan MA, International COPD Cohorts Collaboration Working Group PMID: 28174832 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 8, 2017 Category: Epidemiology Authors: Held U, Kessels A, Garcia Aymerich J, Basagaña X, Ter Riet G, Moons KG, Puhan MA, International COPD Cohorts Collaboration Working Group Tags: Am J Epidemiol Source Type: research

Type- and Subtype-Specific Influenza Forecast.
PMID: 28174833 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 8, 2017 Category: Epidemiology Authors: Kandula S, Yang W, Shaman J Tags: Am J Epidemiol Source Type: research

R äikkönen et al. Respond to "Maternal Stress and Offspring Health".
Räikkönen et al. Respond to "Maternal Stress and Offspring Health". Am J Epidemiol. 2017 Feb 03;:1-2 Authors: Räikkönen K, Martikainen S, Pesonen AK, Lahti J, Heinonen K, Pyhälä R, Lahti M, Tuovinen S, Wehkalampi K, Sammallahti S, Kuula L, Andersson S, Eriksson JG, Ortega-Alonso A, Reynolds RM, Strandberg TE, Seckl JR, Kajantie E PMID: 28158390 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 3, 2017 Category: Epidemiology Authors: Räikkönen K, Martikainen S, Pesonen AK, Lahti J, Heinonen K, Pyhälä R, Lahti M, Tuovinen S, Wehkalampi K, Sammallahti S, Kuula L, Andersson S, Eriksson JG, Ortega-Alonso A, Reynolds RM, Strandberg TE, Seckl JR, Kajantie E Tags: Am J Epidemiol Source Type: research

Invited Commentary: An Ingenious Approach to Examining the Relationship Between Maternal Stress and Offspring Health?
PMID: 28158433 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 3, 2017 Category: Epidemiology Authors: Keyes KM, Susser E Tags: Am J Epidemiol Source Type: research

Maternal Licorice Consumption During Pregnancy and Pubertal, Cognitive, and Psychiatric Outcomes in Children.
JR, Kajantie E PMID: 28158597 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 3, 2017 Category: Epidemiology Authors: Räikkönen K, Martikainen S, Pesonen AK, Lahti J, Heinonen K, Pyhälä R, Lahti M, Tuovinen S, Wehkalampi K, Sammallahti S, Kuula L, Andersson S, Eriksson JG, Ortega-Alonso A, Reynolds RM, Strandberg TE, Seckl JR, Kajantie E Tags: Am J Epidemiol Source Type: research

Observed and Expected Mortality in Cohort Studies.
PMID: 28158438 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 2, 2017 Category: Epidemiology Authors: Richardson DB, Keil AP, Cole SR, MacLehose RF Tags: Am J Epidemiol Source Type: research

Body Mass Index and Amyotrophic Lateral Sclerosis: A Study of US Military Veterans.
PMID: 28158443 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - February 2, 2017 Category: Epidemiology Authors: Mariosa D, Beard JD, Umbach DM, Bellocco R, Keller J, Peters TL, Allen KD, Ye W, Sandler DP, Schmidt S, Fang F, Kamel F Tags: Am J Epidemiol Source Type: research

Time-Course of Cause-Specific Hospital Admissions During Snowstorms: An Analysis of Electronic Medical Records From Major Hospitals in Boston, Massachusetts.
Abstract With global climate change, more frequent severe snowstorms are expected; however, evidence regarding their health effects is very limited. We gathered detailed medical records on hospital admissions (n = 433,037 admissions) from the 4 largest hospitals in Boston, Massachusetts, during the winters of 2010-2015. We estimated the percentage increase in hospitalizations for cardiovascular and cold-related diseases, falls, and injuries on the day of and for 6 days after a day with low (0.05-5.0 inches), moderate (5.1-10.0 inches), or high (>10.0 inches) snowfall using distributed lag regression m...
Source: Am J Epidemiol - January 30, 2017 Category: Epidemiology Authors: Bobb JF, Ho KK, Yeh RW, Harrington L, Zai A, Liao KP, Dominici F Tags: Am J Epidemiol Source Type: research

In-Work Poverty and Self-Rated Health in a Cohort of Working Germans: A Hybrid Approach for Decomposing Within-Person and Between-Persons Estimates of In-Work Poverty Status.
In this study, we investigated whether self-rated health (SRH) can be predicted by in-work poverty and how between-persons and within-person differences in the poverty status of people who are working contribute to this relationship. We used a logistic random-effects model designed to test within-person and between-persons differences with data from a nationally representative German sample with 19 waves of data collection (1995-2013) to estimate effects of between-persons and within-person differences in working poverty status on poor SRH. Interactions by age and sex were tested, and models controlled for sociodemographic...
Source: Am J Epidemiol - January 29, 2017 Category: Epidemiology Authors: Pförtner TK, Schmidt-Catran AW Tags: Am J Epidemiol Source Type: research

Prevalence of Masked Hypertension Among US Adults With Nonelevated Clinic Blood Pressure.
Abstract Masked hypertension (MHT), defined as nonelevated blood pressure (BP) in the clinic setting and elevated BP assessed by ambulatory monitoring, is associated with increased risk of target organ damage, cardiovascular disease, and mortality. Currently, no estimate of MHT prevalence exists for the general US population. After pooling data from the Masked Hypertension Study (n = 811), a cross-sectional clinical investigation of systematic differences between clinic BP and ambulatory BP (ABP) in a community sample of employed adults in the New York City metropolitan area (2005-2012), and the National...
Source: Am J Epidemiol - January 18, 2017 Category: Epidemiology Authors: Wang YC, Shimbo D, Muntner P, Moran AE, Krakoff LR, Schwartz JE Tags: Am J Epidemiol Source Type: research

Associations of Accelerometer-Measured and Self-Reported Sedentary Time With Leukocyte Telomere Length in Older Women.
Abstract Few studies have assessed the association of sedentary time with leukocyte telomere length (LTL). In a cross-sectional study conducted in 2012-2013, we examined associations of accelerometer-measured and self-reported sedentary time with LTL in a sample of 1,481 older white and African-American women from the Women's Health Initiative and determined whether associations varied by level of moderate- to vigorous-intensity physical activity (MVPA). The association between sedentary time and LTL was evaluated using multiple linear regression models. Women were aged 79.2 (standard deviation, 6.7) years, on ave...
Source: Am J Epidemiol - January 18, 2017 Category: Epidemiology Authors: Shadyab AH, Macera CA, Shaffer RA, Jain S, Gallo LC, LaMonte MJ, Reiner AP, Kooperberg C, Carty CL, Di C, Manini TM, Hou L, LaCroix AZ Tags: Am J Epidemiol Source Type: research

Association of Facebook Use With Compromised Well-Being: A Longitudinal Study.
Abstract Face-to-face social interactions enhance well-being. With the ubiquity of social media, important questions have arisen about the impact of online social interactions. In the present study, we assessed the associations of both online and offline social networks with several subjective measures of well-being. We used 3 waves (2013, 2014, and 2015) of data from 5,208 subjects in the nationally representative Gallup Panel Social Network Study survey, including social network measures, in combination with objective measures of Facebook use. We investigated the associations of Facebook activity and real-world ...
Source: Am J Epidemiol - January 16, 2017 Category: Epidemiology Authors: Shakya HB, Christakis NA Tags: Am J Epidemiol Source Type: research

Invited Commentary: Ambient Environment and the Risk of Preterm Birth.
Abstract Preterm birth is a common adverse birth outcome known to be associated with increased infant mortality, and it often results in a higher burden of offspring morbidity in both the short and long terms. The potential for environmental factors, particularly air pollution and meteorological parameters, to increase preterm birth risk has received significant attention worldwide, but the findings are generally inconsistent, with variations in study designs and methods across populations and geographic locations. In the current issue of the Journal, Giorgis-Allemand et al. (Am J Epidemiol. 2016;000(0):000-000) t...
Source: Am J Epidemiol - January 13, 2017 Category: Epidemiology Authors: Ha S, Mendola P Tags: Am J Epidemiol Source Type: research

Giorgis-Allemand et al. Respond to "Ambient Environment and Preterm Birth".
Giorgis-Allemand et al. Respond to "Ambient Environment and Preterm Birth". Am J Epidemiol. 2017 Jan 13;: Authors: Giorgis-Allemand L, Pedersen M, Beelen RM, Gehring U, Hoek G, Basagana X, Nieuwenhuijsen M, Brunekreef B, Kogevinas M, Slama R PMID: 28087512 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - January 13, 2017 Category: Epidemiology Authors: Giorgis-Allemand L, Pedersen M, Beelen RM, Gehring U, Hoek G, Basagana X, Nieuwenhuijsen M, Brunekreef B, Kogevinas M, Slama R Tags: Am J Epidemiol Source Type: research

How Accurate Is a Single Cutpoint to Identify High Blood Pressure in Adolescents?
In this study, we evaluated the risk for misclassification when using the IDF single-cutpoints criteria. We first applied the IDF criteria to a reconstructed population with the same age, sex, and height distribution as the population used to develop the reference standard. The proposed single cutpoints corresponded to percentiles from the 81.6th to 99.9th for systolic BP and from the 92.9th to 98.9th for diastolic BP in the reconstructed population. Using IDF criteria, there were high false-negative fractions for both systolic and diastolic BP (from 54% to 93%) in 10- to 12-year-olds and a false-positive fraction up to 35...
Source: Am J Epidemiol - January 13, 2017 Category: Epidemiology Authors: Brambilla P, Andreano A, Antolini L, Bedogni G, Salvatoni A, Iughetti L, Moreno LA, Pietrobelli A, Genovesi S Tags: Am J Epidemiol Source Type: research

Indoor Tanning and Melanoma Risk: Long-Term Evidence From a Prospective Population-Based Cohort Study.
;d MB Abstract Indoor tanning is associated with increased risk of melanoma, but most evidence comes from case-control studies. Using data from the Norwegian Women and Cancer Study, a large prospective cohort study, we investigated the associations of age at initiation of indoor tanning, duration of tanning-device use, and dose response with melanoma risk and examined the role of indoor tanning in age at melanoma diagnosis. We used Poisson regression to estimate relative risks and 95% confidence intervals for the relationship of indoor tanning to melanoma risk and linear regression to examine age of indoor tanning...
Source: Am J Epidemiol - January 11, 2017 Category: Epidemiology Authors: Ghiasvand R, Rueegg CS, Weiderpass E, Green AC, Lund E, Veierød MB Tags: Am J Epidemiol Source Type: research

Invited Commentary: Indoor Tanning-A Melanoma Accelerator?
e; JF Abstract In this issue of the Journal, Ghiasvand et al. (Am J Epidemiol. 2017;185(00):000-000) present results from a longitudinal study of the association between indoor tanning and melanoma in a large cohort of Norwegian women. These new data further support previous findings on the damaging effects of tanning bed exposure on women, particularly young women. The authors present compelling evidence that early exposure to tanning beds advances the date of diagnosis of melanoma by at least 2 years. With a strong design and a large cohort followed for a mean of 13.7 years, this study lends additional support t...
Source: Am J Epidemiol - January 11, 2017 Category: Epidemiology Authors: Berwick M, Doré JF Tags: Am J Epidemiol Source Type: research

Ghiasvand et al. Respond to "Indoor Tanning-A Melanoma Accelerator?"
Ghiasvand et al. Respond to "Indoor Tanning-A Melanoma Accelerator?" Am J Epidemiol. 2017 Jan 11;: Authors: Ghiasvand R, Rueegg CS, Weiderpass E, Green AC, Lund E, Veierød MB PMID: 28077361 [PubMed - as supplied by publisher] (Source: Am J Epidemiol)
Source: Am J Epidemiol - January 11, 2017 Category: Epidemiology Authors: Ghiasvand R, Rueegg CS, Weiderpass E, Green AC, Lund E, Veierød MB Tags: Am J Epidemiol Source Type: research

Analyses of Sensitivity to the Missing-at-Random Assumption Using Multiple Imputation With Delta Adjustment: Application to a Tuberculosis/HIV Prevalence Survey With Incomplete HIV-Status Data.
In this study, information on partially observed HIV serological values was supplemented by additional information on self-reported HIV status. We present results from 2 types of sensitivity analysis: The first assumed that the degree of departure from MAR was the same for all individuals with missing HIV serological values; the second assumed that the degree of departure from MAR varied according to an individual's self-reported HIV status. Our analyses demonstrate that multiple imputation offers a principled approach by which to incorporate auxiliary information on self-reported HIV status into analyses based on partiall...
Source: Am J Epidemiol - January 10, 2017 Category: Epidemiology Authors: Leacy FP, Floyd S, Yates TA, White IR Tags: Am J Epidemiol Source Type: research

Maternal Concentrations of Perfluoroalkyl Substances and Fetal Markers of Metabolic Function and Birth Weight: The Maternal-Infant Research on Environmental Chemicals (MIREC) Study.
We examined associations between first-trimester maternal plasma PFAS concentrations and birth weight and cord blood concentrations of leptin and adiponectin using data on 1,705 mother-infant pairs from the Maternal Infant Research on Environmental Chemicals (MIREC) Study, a trans-Canada birth cohort study that recruited women between 2008 and 2011. Bayesian hierarchical models were used to quantify associations and calculate credible intervals. Maternal perfluorooctanoic acid concentrations were inversely associated with birth weight z score, though the null value was included in all credible intervals (log10 β ...
Source: Am J Epidemiol - January 9, 2017 Category: Epidemiology Authors: Ashley-Martin J, Dodds L, Arbuckle TE, Bouchard MF, Fisher M, Morriset AS, Monnier P, Shapiro GD, Ettinger AS, Dallaire R, Taback S, Fraser W, Platt RW Tags: Am J Epidemiol Source Type: research

Causal Effect of Genetic Variants Associated With Body Mass Index on Multiple Sclerosis Susceptibility.
dsson L, Barcellos LF Abstract Multiple sclerosis (MS) is an autoimmune disease with both genetic and environmental risk factors. Recent studies indicate that childhood and adolescent obesity double the risk of MS, but this association may reflect unmeasured confounders rather than causal effects of obesity. We used separate-sample Mendelian randomization to estimate the causal effect of body mass index (BMI) on susceptibility to MS. Using data from non-Hispanic white members of the Kaiser Permanente Medical Care Plan of Northern California (KPNC) (2006-2014; 1,104 cases of MS and 10,536 controls) and a replicatio...
Source: Am J Epidemiol - January 9, 2017 Category: Epidemiology Authors: Gianfrancesco MA, Glymour MM, Walter S, Rhead B, Shao X, Shen L, Quach H, Hubbard A, Jónsdóttir I, Stefánsson K, Strid P, Hillert J, Hedström A, Olsson T, Kockum I, Schaefer C, Alfredsson L, Barcellos LF Tags: Am J Epidemiol Source Type: research