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Articles 1 - 8 of 8
Full-Text Articles in Epidemiology
Exploration And Comparison Of Methods For Combining Population- And Family-Based Genetic Association Using The Genetic Analysis Workshop 17 Mini-Exome, David W. Fardo, Anthony R. Druen, Jinze Liu, Lucia Mirea, Claire Infante-Rivard, Patrick Breheny
Exploration And Comparison Of Methods For Combining Population- And Family-Based Genetic Association Using The Genetic Analysis Workshop 17 Mini-Exome, David W. Fardo, Anthony R. Druen, Jinze Liu, Lucia Mirea, Claire Infante-Rivard, Patrick Breheny
Biostatistics Faculty Publications
We examine the performance of various methods for combining family- and population-based genetic association data. Several approaches have been proposed for situations in which information is collected from both a subset of unrelated subjects and a subset of family members. Analyzing these samples separately is known to be inefficient, and it is important to determine the scenarios for which differing methods perform well. Others have investigated this question; however, no extensive simulations have been conducted, nor have these methods been applied to mini-exome-style data such as that provided by Genetic Analysis Workshop 17. We quantify the empirical power and false-positive …
Pre- And Post-Bronchodilator Lung Function As Predictors Of Mortality In The Lung Health Study, David M. Mannino, Enrique Diaz-Guzman, Sonia Buist
Pre- And Post-Bronchodilator Lung Function As Predictors Of Mortality In The Lung Health Study, David M. Mannino, Enrique Diaz-Guzman, Sonia Buist
David M. Mannino
Background
Chronic obstructive pulmonary disease (COPD) is supposed to be classified on the basis of post-bronchodilator lung function. Most longitudinal studies of COPD, though, do not have post-bronchodilator lung function available. We used pre-and post bronchodilator lung function data from the Lung Health Study to determine whether these measures differ in their ability to predict mortality.
Methods
We limited our analysis to subjects who were of black or white race, on whom we had complete data, and who participated at either the 1 year or the 5 year follow-up visit. We classified subjects based on their baseline lung function, according …
Race-Ethnicity As An Effect Modifier Of The Association Between Hbalc And Mortality In U.S. Adults Without Diagnosed Diabetes, Katharina G. Kehl, Hannes M. Findeisen, David W. Fardo, Dennis Bruemmer, David M. Mannino, Wayne T. Sanderson
Race-Ethnicity As An Effect Modifier Of The Association Between Hbalc And Mortality In U.S. Adults Without Diagnosed Diabetes, Katharina G. Kehl, Hannes M. Findeisen, David W. Fardo, Dennis Bruemmer, David M. Mannino, Wayne T. Sanderson
David M. Mannino
Objective
HbAlc is increasingly appreciated as a risk factor for all-cause and cardiovascular disease (CVD) mortality in the non-diabetic population. In this study, we investigated the association between HbAlc and mortality with a particular focus on the impact of race–ethnicity.
Design
Cohort study.
Methods
We analyzed the association between HbAlc and all-cause and CVD mortality in 12 698 non-diabetic adults 20 years or older from the Third National Health and Nutrition Examination Survey using separate models for people of different race–ethnicity.
Results
In our stratified analyses, higher non-diabetic HbAlc levels were associated with all-cause and CVD mortality in non-Hispanic whites …
Farmwork-Related Injury Among Farmers 50 Years Of Age And Older In Kentucky And South Carolina: A Cohort Study, 2002-2005, Jennifer L. Marcum, Steven R. Browning, Deborah B. Reed, Richard Charnigo
Farmwork-Related Injury Among Farmers 50 Years Of Age And Older In Kentucky And South Carolina: A Cohort Study, 2002-2005, Jennifer L. Marcum, Steven R. Browning, Deborah B. Reed, Richard Charnigo
Epidemiology and Environmental Health Faculty Publications
Farmers in the U.S. are becoming more diverse; the average age of the farmer is increasing, as is the number of women and minority farm operators. There is limited research on injury risk factors in these special populations of farmers. It is especially important to study the risk factors for injury in these growing and at-risk groups. A longitudinal survey was conducted of farmers (n = 1,394) age 50 and older who resided in Kentucky and South Carolina. The questionnaire was administered by telephone and mail surveys four times between 2002 and 2005 to the fixed cohort of farmers, obtained …
Does Comorbidity Explain The Ethnic Inequalities In Cervical Cancer Survival In New Zealand? A Retrospective Cohort Study, Naomi Brewer, Barry Borman, Diana Sarfati, Mona Jeffreys, Steven T. Fleming, Soo Cheng, Neil Pearce
Does Comorbidity Explain The Ethnic Inequalities In Cervical Cancer Survival In New Zealand? A Retrospective Cohort Study, Naomi Brewer, Barry Borman, Diana Sarfati, Mona Jeffreys, Steven T. Fleming, Soo Cheng, Neil Pearce
Epidemiology and Environmental Health Faculty Publications
BACKGROUND: There are large ethnic differences in cervical cancer survival in New Zealand that are only partly explained by stage at diagnosis. We investigated the association of comorbidity with cervical cancer survival, and whether comorbidity accounted for the previously observed ethnic differences in survival.
METHODS: The study involved 1,594 cervical cancer cases registered during 1994-2005. Comorbidity was measured using hospital events data and was classified using the Elixhauser instrument; effects on survival of individual comorbid conditions from the Elixhauser instrument were also assessed. Cox regression was used to estimate adjusted cervical cancer mortality hazard ratios (HRs).
RESULTS: Comorbidity during the …
Copd In Never Smokers: Results From The Population-Based Burden Of Obstructive Lung Disease Study, Bernd Lamprecht, Mary Ann Mcburnie, William M. Vollmer, Gunnar Gudmundsson, Tobias Welte, Ewa Nizankowska-Mogilnicka, Michael Studnicka, Eric Bateman, Josep M. Anto, Peter Burney, David M. Mannino, Sonia A. Buist
Copd In Never Smokers: Results From The Population-Based Burden Of Obstructive Lung Disease Study, Bernd Lamprecht, Mary Ann Mcburnie, William M. Vollmer, Gunnar Gudmundsson, Tobias Welte, Ewa Nizankowska-Mogilnicka, Michael Studnicka, Eric Bateman, Josep M. Anto, Peter Burney, David M. Mannino, Sonia A. Buist
David M. Mannino
Background: Never smokers comprise a substantial proportion of patients with COPD. Their characteristics and possible risk factors in this population are not yet well defined.
Methods: We analyzed data from 14 countries that participated in the international, population-based Burden of Obstructive Lung Disease (BOLD) study. Participants were aged ≥ 40 years and completed postbronchodilator spirometry testing plus questionnaires about respiratory symptoms, health status, and exposure to COPD risk factors. A diagnosis of COPD was based on the postbronchodilator FEV1/FVC ratio, according to current GOLD (Global Initiative for Obstructive Lung Disease) guidelines. In addition to this, the lower limit of normal …
The Association Of Adverse Pregnancy Events And Cardiovascular Disease In Women 50 Years Of Age And Older, Sara M. Freibert, David M. Mannino, Heather Bush, Leslie J. Crofford
The Association Of Adverse Pregnancy Events And Cardiovascular Disease In Women 50 Years Of Age And Older, Sara M. Freibert, David M. Mannino, Heather Bush, Leslie J. Crofford
David M. Mannino
Objective: This study investigates the association between a prior history of pregnancy complications and cardiovascular disease (CVD) among Kentucky women aged ≥50 years.
Methods: Data were analyzed from participants (n = 3909) in the Kentucky Women's Health Registry (2006–2008). Primary outcomes were self-reported prevalence of CVD, including angina, heart attack, heart failure, and arrhythmia. Pregnancy complications used as predictors were preterm labor, preeclampsia, gestational diabetes mellitus (GDM), and third trimester bleeding. Logistic regression analyses were conducted to determine associations between prevalence of CVD and pregnancy complications, controlling for age, education, and smoking status.
Results: Overall, 199 (5.1%) women reported angina, …
Kriged And Modeled Ambient Air Levels Of Benzene In An Urban Environment: An Exposure Assessment Study, Kristina W. Whitworth, Elaine Symanski, Dejian Lai, Ann L. Coker
Kriged And Modeled Ambient Air Levels Of Benzene In An Urban Environment: An Exposure Assessment Study, Kristina W. Whitworth, Elaine Symanski, Dejian Lai, Ann L. Coker
CRVAW Faculty Journal Articles
Background. There is increasing concern regarding the potential adverse health effects of air pollution, particularly hazardous air pollutants (HAPs). However, quantifying exposure to these pollutants is problematic. Objective. Our goal was to explore the utility of kriging, a spatial interpolation method, for exposure assessment in epidemiologic studies of HAPs. We used benzene as an example and compared census tract-level kriged predictions to estimates obtained from the 1999 U.S. EPA National Air Toxics Assessment (NATA), Assessment System for Population Exposure Nationwide (ASPEN) model. Methods. Kriged predictions were generated for 649 census tracts in Harris County, Texas using estimates of annual benzene …