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Articles 1 - 11 of 11
Full-Text Articles in Medicine and Health Sciences
School‐Level Body Mass Index Shapes Children's Weight Trajectories, Ashley W. Kranjac
School‐Level Body Mass Index Shapes Children's Weight Trajectories, Ashley W. Kranjac
Sociology Faculty Articles and Research
BACKGROUND
Embedded within children's weight trajectories are complex environmental contexts that influence obesity risk. As such, the normative environment of body mass index (BMI) within schools may influence children's weight trajectories as they age from kindergarten to fifth grade.
METHODS
I use 5 waves of the ECLS‐K—Kindergarten Class 1998‐1999 data and a series of multilevel growth models to examine whether attending schools with higher overall BMI influences children's weight status over time.
RESULTS
Results show that, net of child, family, and school sociodemographic characteristics, children who attend schools with higher rates of obesity have increased weight compared to children who …
Parametric And Nonparametric Tests In Spine Research: Why Do They Matter?, Sarah Hopkins, Joseph R Dettori, Jens R Chapman
Parametric And Nonparametric Tests In Spine Research: Why Do They Matter?, Sarah Hopkins, Joseph R Dettori, Jens R Chapman
Articles, Abstracts, and Reports
No abstract provided.
Common Pitfalls In Analysis Of Tissue Scores, David K. Meyerholz, Nathan L. Tintle, Amanda P. Beck
Common Pitfalls In Analysis Of Tissue Scores, David K. Meyerholz, Nathan L. Tintle, Amanda P. Beck
Faculty Work Comprehensive List
Histopathology remains an important source of descriptive biological data in biomedical research. Recent petitions for enhanced reproducibility in scientific studies have elevated the role of tissue scoring (semiquantitative and quantitative) in research studies. Effective tissue scoring requires appropriate statistical analysis to help validate the group comparisons and give the pathologist confidence in interpreting the data. Each statistical test is typically founded on underlying assumptions regarding the data. If the underlying assumptions of a statistical test do not match the data, then these tests can lead to increased risk of erroneous interpretations of the data. The choice of appropriate statistical test …
Fast And Powerful Genome Wide Association Of Dense Genetic Data With High Dimensional Imaging Phenotypes, Habib Ganjgahi, Anderson M. Winkler, David C. Glahn, John Blangero, Brian Donohue, Peter Kochunov, Thomas E. Nichols
Fast And Powerful Genome Wide Association Of Dense Genetic Data With High Dimensional Imaging Phenotypes, Habib Ganjgahi, Anderson M. Winkler, David C. Glahn, John Blangero, Brian Donohue, Peter Kochunov, Thomas E. Nichols
School of Medicine Publications and Presentations
Genome wide association (GWA) analysis of brain imaging phenotypes can advance our understanding of the genetic basis of normal and disorder-related variation in the brain. GWA approaches typically use linear mixed effect models to account for non-independence amongst subjects due to factors, such as family relatedness and population structure. The use of these models with high-dimensional imaging phenotypes presents enormous challenges in terms of computational intensity and the need to account multiple testing in both the imaging and genetic domain. Here we present a method that makes mixed models practical with high-dimensional traits by a combination of a transformation applied …
Bayesian Analytical Approaches For Metabolomics : A Novel Method For Molecular Structure-Informed Metabolite Interaction Modeling, A Novel Diagnostic Model For Differentiating Myocardial Infarction Type, And Approaches For Compound Identification Given Mass Spectrometry Data., Patrick J. Trainor
Electronic Theses and Dissertations
Metabolomics, the study of small molecules in biological systems, has enjoyed great success in enabling researchers to examine disease-associated metabolic dysregulation and has been utilized for the discovery biomarkers of disease and phenotypic states. In spite of recent technological advances in the analytical platforms utilized in metabolomics and the proliferation of tools for the analysis of metabolomics data, significant challenges in metabolomics data analyses remain. In this dissertation, we present three of these challenges and Bayesian methodological solutions for each. In the first part we develop a new methodology to serve a basis for making higher order inferences in metabolomics, …
Association Tests For Genetic Effect And Its Interaction With Environmental Factors, Zhengyang Zhou
Association Tests For Genetic Effect And Its Interaction With Environmental Factors, Zhengyang Zhou
Statistical Science Theses and Dissertations
My research is in the area of statistical genetics, and it contains three projects: (1) Differentiating the Cochran-Armitage (CA) trend test and Pearson’s chi-square test: location and dispersion; (2) Decomposing Pearson’s chi-square test: a linear regression and its departure from linearity; (3) Testing nonlinear gene-environment (GxE) interaction through varying coefficient and linear mixed models.
(1) In genetic case-control association studies, a standard practice is to perform the CA trend test with 1 degree-of-freedom (df) under the assumption of an additive model. However, when the true genetic model is recessive or near recessive, it is outperformed by Pearson’s chi-square test with …
Data Analysis Basics – Part Ii, Judith A. Savageau
Data Analysis Basics – Part Ii, Judith A. Savageau
Judith A. Savageau
Blog post to AEA365, a blog sponsored by the American Evaluation Association (AEA) dedicated to highlighting Hot Tips, Cool Tricks, Rad Resources, and Lessons Learned for evaluators. The American Evaluation Association is an international professional association of evaluators devoted to the application and exploration of program evaluation, personnel evaluation, technology, and many other forms of evaluation. Evaluation involves assessing the strengths and weaknesses of programs, policies, personnel, products, and organizations to improve their effectiveness.
Data Analysis Basics – Part I, Judith A. Savageau
Data Analysis Basics – Part I, Judith A. Savageau
Judith A. Savageau
Blog post to AEA365, a blog sponsored by the American Evaluation Association (AEA) dedicated to highlighting Hot Tips, Cool Tricks, Rad Resources, and Lessons Learned for evaluators. The American Evaluation Association is an international professional association of evaluators devoted to the application and exploration of program evaluation, personnel evaluation, technology, and many other forms of evaluation. Evaluation involves assessing the strengths and weaknesses of programs, policies, personnel, products, and organizations to improve their effectiveness.
Indicators For Early Assessment Of Palliative Care In Lung Cancer Patients: A Population Study Using Linked Health Data, Maria Kelly, Katie M. O'Brien, Michael Lucey, Kerri Clough-Gorr, Ailish Hannigan
Indicators For Early Assessment Of Palliative Care In Lung Cancer Patients: A Population Study Using Linked Health Data, Maria Kelly, Katie M. O'Brien, Michael Lucey, Kerri Clough-Gorr, Ailish Hannigan
Department of Mathematics Publications
Analysing linked, routinely collected data may be useful to identify characteristics of patients with suspected lung cancer who could benefit from early assessment for palliative care. The aim of this study was to compare characteristics of newly diagnosed lung cancer patients dying within 30 days of diagnosis (short term survivors) with those surviving more than 30 days. To identify indicators for early palliative care assessment we distinguished between characteristics available at diagnosis (age, gender, smoking status, marital status, comorbid disease, admission type, tumour stage and histology) from those available post diagnosis. A second aim was to examine the association between …
Statistical Forecasting Models Used To Predict Daily Patient Volumes In The Emergency Department: A Proposal For A Systematic Review, Jon White
Interprofessional Research and Innovations Council
Statistical Forecasting Models Used to Predict Daily Patient Volumes in the Emergency Department: A Proposal for a Systematic Review
Jon White, MS, BSN, RN, CCRN
Background: The existing and projected worldwide shortage of nurses requires numerous distinct solutions to prevent a healthcare crisis. Proposed solutions typically address the situation from different angles, including identifying ways to add new nurses to the workforce, or finding new ways to work with limited resources. This review examines the efficacy of forecasting demand in one area of the hospital, understanding the potential of its uses for short-term resource balancing and projection of need.
This …
The Effect Of Tackling Training On Head Accelerations In Youth American Football, Eric Schussler, Richard J. Jagacinski, Susan E. White, Ajit M. Chaudhari, John A. Buford, James A. Onate
The Effect Of Tackling Training On Head Accelerations In Youth American Football, Eric Schussler, Richard J. Jagacinski, Susan E. White, Ajit M. Chaudhari, John A. Buford, James A. Onate
Rehabilitation Sciences Faculty Publications
Background: Many organizations have introduced frameworks to reduce the incidence of football related concussions through proper equipment fitting, coach education, and alteration of tackling technique.
Purpose: The purpose of this study was to examine the effects of training in a vertical, head up tackling style on the number of head accelerations experienced while tackling in a controlled laboratory situation. The authors hypothesized that training in a head up tackling technique would reduce the severity of head acceleration experienced by participants.
Design: Controlled Laboratory Study.
Methods: Twenty-four participants (11.5 ± 0.6 years old, 60.5 ± 2.2 in, 110 ± 18.4 lbs.) …