Open Access. Powered by Scholars. Published by Universities.®

Medicine and Health Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 5 of 5

Full-Text Articles in Medicine and Health Sciences

Interpreting P Values In 2023, Jennifer K. Homa-Bonell Jul 2023

Interpreting P Values In 2023, Jennifer K. Homa-Bonell

Journal of Patient-Centered Research and Reviews

If recent experiences shared among the biostatistician community are indicative of a sea change in research, then a most-welcome culture shift in dialogue surrounding the proper use and interpretation of the P value, which measures statistical probability, is underway. This editorial strives to offer guidance for researchers who would like to incorporate more comprehensive reporting in their research, namely, a broader discussion that goes beyond looking at the P value by itself and includes effect size estimates, confidence intervals, and clinical implications when interpreting quantitative results. Another evolving development in clinical research is the preferred language when referring …


Explaining Adult Obesity, Severe Obesity, And Bmi: Five Decades Of Change, Ashley W. Kranjac, Dinko Kranjac May 2023

Explaining Adult Obesity, Severe Obesity, And Bmi: Five Decades Of Change, Ashley W. Kranjac, Dinko Kranjac

Sociology Faculty Articles and Research

Obesity rates have increased across all segments of society since the late 1970s, but the reason behind population-level increases in body weight remains unclear. We used the 1971–2020 NHANES data to examine whether the observed trend in obesity prevalence is attributable to changing public health behaviors (i.e., intracohort change) or changing publics (i.e., cohort replacement). We partitioned total change in mean BMI, and rates of obesity and severe obesity, into its IC and CR components using linear and algebraic decomposition methods. We found that the IC mechanism (i.e., broad sectors of individuals changing) plays a dominant role in the overall …


Optimizing Tumor Xenograft Experiments Using Bayesian Linear And Nonlinear Mixed Modelling And Reinforcement Learning, Mary Lena Bleile May 2023

Optimizing Tumor Xenograft Experiments Using Bayesian Linear And Nonlinear Mixed Modelling And Reinforcement Learning, Mary Lena Bleile

Statistical Science Theses and Dissertations

Tumor xenograft experiments are a popular tool of cancer biology research. In a typical such experiment, one implants a set of animals with an aliquot of the human tumor of interest, applies various treatments of interest, and observes the subsequent response. Efficient analysis of the data from these experiments is therefore of utmost importance. This dissertation proposes three methods for optimizing cancer treatment and data analysis in the tumor xenograft context. The first of these is applicable to tumor xenograft experiments in general, and the second two seek to optimize the combination of radiotherapy with immunotherapy in the tumor xenograft …


The Association Between College Age Students' Nutrition Intake And Depression, Mackenzie Allen Apr 2023

The Association Between College Age Students' Nutrition Intake And Depression, Mackenzie Allen

Honors Projects

The research performed was to determine a correlation between depression and nutrient intake in college age students. This study used NHANES publicily available data and IBM's SPSS statistical software to analyze a correlation between depression and nutrition/lifestyle variables: vitamin D, vitamin B12, saturated fatty acids, unsaturated fatty acids, fiber, and exercise. The study found that fiber and unsaturated fatty acid intake had a negative correlation with depression, meaning that as the intake of these nutrients increased, depression decreased. This research reveals key factors to improve the nutritional status of college age students, along with their emotional wellbeing.


Uncovering The Role Of Fat-Infiltrated Axillary Lymph Nodes In Obesity-Related Diseases With Statistical And Machine Learning Analyses, Qingyuan Song Jan 2023

Uncovering The Role Of Fat-Infiltrated Axillary Lymph Nodes In Obesity-Related Diseases With Statistical And Machine Learning Analyses, Qingyuan Song

Dartmouth College Ph.D Dissertations

The link between obesity and pathogenesis is a complex and multifaceted area of research that is yet to be fully understood. Ample evidence exists to demonstrate the direct relationship between excessive internal fat and various health conditions such as cancer, and metabolic and cardiovascular diseases. The infiltration of ectopic fat into axillary lymph nodes, observable on breast cancer screening images, has been shown to be correlated with body mass index (BMI) in women undergoing screening. This study aimed to explore the relationship between fat-infiltrated axillary lymph nodes (FIN) and obesity-related diseases, with the goal of evaluating the clinical value of …