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Full-Text Articles in Investigative Techniques

Latent Classification Of Time-Dependent Transition Rates In Longitudinal Binary Outcome Data, Joonha Chang, Wenyaw Chan Nov 2025

Latent Classification Of Time-Dependent Transition Rates In Longitudinal Binary Outcome Data, Joonha Chang, Wenyaw Chan

School of Public Health Faculty Publications

Continuous-time Markov chain (CTMC) models and latent classification methods are commonly used to analyze longitudinal categorical outcomes in medical research. While CTMC models are popular for their simplicity and effectiveness, their assumption of constant transition rates presents limitations in capturing dynamic behaviors. To address this, non-homogeneous continuous-time Markov chains (NH-CTMCs) have been developed, incorporating time-varying transition rates to enhance model flexibility. In this study, we leverage closed-form transition probabilities for a fully ergodic two-state NH-CTMC model and propose a latent class clustering approach to identify heterogeneous transition rate patterns within the population. We emphasize the potential advantages of these models …


Patient-Reported Functional Outcomes And Treatment-Related Regret In Hispanic And Spanish-Speaking Men Following Prostate Cancer Treatment, Andrea A. Lopez, Bashir Al Awamlh, Li-Ching Huang, Zhiguo Zhao, Tatsuki Koyama, Karen E. Hoffman, Christopher J. Wallis, Kerri Cavanaugh, Ruchika Talwar, Alicia K. Morgans, Michael Goodman, Ann S. Hamilton, Xiao-Cheng Wu, Jie Li, Brock B. O'Neil, David F. Penson, Daniel A. Barocas Dec 2024

Patient-Reported Functional Outcomes And Treatment-Related Regret In Hispanic And Spanish-Speaking Men Following Prostate Cancer Treatment, Andrea A. Lopez, Bashir Al Awamlh, Li-Ching Huang, Zhiguo Zhao, Tatsuki Koyama, Karen E. Hoffman, Christopher J. Wallis, Kerri Cavanaugh, Ruchika Talwar, Alicia K. Morgans, Michael Goodman, Ann S. Hamilton, Xiao-Cheng Wu, Jie Li, Brock B. O'Neil, David F. Penson, Daniel A. Barocas

School of Public Health Faculty Publications

OBJECTIVES: Compare functional outcomes and treatment-related regret over 10 years in Spanish- and English-speaking Hispanic men compared to non-Hispanic men following treatment of localized prostate cancer. METHODS AND MATERIALS: Data from a prospective cohort study of men with localized prostate cancer treated with active surveillance, radical prostatectomy or radiotherapy were used to examine the effect of survey language (Spanish speaking vs. English speaking) and ethnicity (Hispanic vs. non-Hispanic) on functional outcomes and treatment-related regret over 10 years. Outcomes were measured using validated questionaries adjusting for baseline patient and disease characteristics. RESULTS: A total of 770 men were included, 12% were …


Convergence Of Alcohol Consumption And Dietary Quality In Us Adults Who Currently Drink Alcohol: An Analysis Of Two Core Risk Factors Of Liver Disease, Peng-Sheng Ting, Wei-Ting Lin, Suthat Liangpunsakul, Madeline Novack, Chiung-Kuei Huang, Hui-Yi Lin, Tung-Sung Tseng, Po-Hung Chen Nov 2024

Convergence Of Alcohol Consumption And Dietary Quality In Us Adults Who Currently Drink Alcohol: An Analysis Of Two Core Risk Factors Of Liver Disease, Peng-Sheng Ting, Wei-Ting Lin, Suthat Liangpunsakul, Madeline Novack, Chiung-Kuei Huang, Hui-Yi Lin, Tung-Sung Tseng, Po-Hung Chen

School of Public Health Faculty Publications

BACKGROUND/OBJECTIVES: Alcohol consumption and poor dietary habits are on the rise in the United States, posing significant challenges to public health due to their contribution to chronic diseases such as liver failure. While associations between alcohol consumption patterns and diet quality have been explored, the relationship between specific alcoholic beverage types and diet quality remains underexamined. This study aims to compare diet quality among consumers of different alcoholic beverage types. METHODS: We conducted a cross-sectional analysis of 1917 current alcohol drinkers from the National Health and Nutrition Examination Survey (NHANES) who completed a 24 h dietary recall survey. Diet quality …


Prevalence And Associated Risk Factors Of Current Hepatitis C Infection Among U.S. General Population And Injection Drug Users Aged 20-59 Years: Nhanes 2009-2018, Harun Mazumder, Md Faruk Hossain, Pratibha Shrestha, Sultan Mahmud, Maidul Husain, Rebeka Ahmed Aug 2024

Prevalence And Associated Risk Factors Of Current Hepatitis C Infection Among U.S. General Population And Injection Drug Users Aged 20-59 Years: Nhanes 2009-2018, Harun Mazumder, Md Faruk Hossain, Pratibha Shrestha, Sultan Mahmud, Maidul Husain, Rebeka Ahmed

School of Public Health Faculty Publications

INTRODUCTION: The people who inject drugs (PWID) are attributed to high-risk groups for transmission of the Hepatitis C virus (HCV). This study assessed the prevalence and associated factors of current HCV infection (CHI) among U.S. general population and PWID of ages between 20 and 59 years old. METHODS: This study utilized cross-sectional data from the 2009-2018 National Health and Nutrition Examination Survey, conducting separate analyses for the U.S. general population, including PWID and non-PWID, as well as specific analyses focusing solely on PWID. The analytical methods included the estimation of CHI prevalence, Rao-Scott chi-square test to compare CHI-positive and CHI-negative …


Are College Students Interested In Family Health History Education? A Large Needs Assessment Survey Study, Ming Li, Oi Man Kwok, Ping Ma, Tung-Sung Tseng, Lei Shih Chen Jan 2023

Are College Students Interested In Family Health History Education? A Large Needs Assessment Survey Study, Ming Li, Oi Man Kwok, Ping Ma, Tung-Sung Tseng, Lei Shih Chen

School of Public Health Faculty Publications

Family health history (FHH) is an essential foundation for personalized disease prevention. As the incidence of early-onset chronic diseases is increasing among college students, it is important to provide them with the education required to learn about their FHH. This study aimed to assess college students’ interest in receiving FHH education, preferred topics, and desired learning methods. We invited college students to complete an online survey from a large research-intensive university. A total of 2276 college students completed the survey. Nearly half of the participants self-identified as non-Hispanic white (45.5%). Slightly more than half of the sample (53.9%) were not …


Sugar-Sweetened Beverages Intake, Abdominal Obesity, And Inflammation Among Us Adults Without And With Prediabetes—An Nhanes Study, Wei Ting Lin, Yu Hsiang Kao, Mirandy S. Li, Ting Luo, Hui Yi Lin, Chien Hung Lee, David W. Seal, Chih Yang Hu, Lei Shih Chen, Tung-Sung Tseng Dec 2022

Sugar-Sweetened Beverages Intake, Abdominal Obesity, And Inflammation Among Us Adults Without And With Prediabetes—An Nhanes Study, Wei Ting Lin, Yu Hsiang Kao, Mirandy S. Li, Ting Luo, Hui Yi Lin, Chien Hung Lee, David W. Seal, Chih Yang Hu, Lei Shih Chen, Tung-Sung Tseng

School of Public Health Faculty Publications

Excessive sugar-sweetened beverages (SSB) consumption and abdominal obesity have been independently linked to numerous disorders, including diabetes and elevated C-reactive protein (CRP). This study aimed to explore the association between SSB intake, abdominal obesity, and inflammation in normal and prediabetic adults. Sugar intake from SSBs was calculated from 24-h dietary recalls and further classified into non-, medium-, and high-intake. The status of non- and prediabetes was identified based on hemoglobin A1c level. All analyses were performed under a survey module with appropriate sampling weights to control for the complex survey design. A total of 5250 eligible adults without diabetes were …


Use Of Machine Learning Approaches And Statistical Techniques To Adjust For Nonadherence In Randomized Clinical Trials., Andrew G Chapple Mar 2022

Use Of Machine Learning Approaches And Statistical Techniques To Adjust For Nonadherence In Randomized Clinical Trials., Andrew G Chapple

School of Public Health Faculty Publications

No abstract provided.