Medicine and Health Sciences Commons^™

Integrating Spatial-Temporal Dynamics And Graph Embedding In Pde-Based Models For Predicting Covid-19 Spread, Nao Yamamoto

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

Predicting Dengue Incidence In Central Argentina Using Google Trends Data, Sahil Chindal

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

Physics-Informed Neural Networks For Agent-Based Epidemiological Model Calibration, Alvan C. Arulandu, Padmanabhan Seshaiyer

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

Msis-Robertson: A Stochastic Multi-Host Model For West Nile Virus, Suzanne Robertson, Emily Horton

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

Takotsubo Syndrome: Is It Just A “Broken Heart”?, Haris Muhammad Md, Angila Bag Md, Aparna Iyer Md

Journal of Community Hospital Internal Medicine Perspectives

Takotsubo Cardiomyopathy (TCM) is known as stress induced cardiomyopathy which may be triggered by emotional or physical stress. It contributes approximately 0.02% of all the hospitalizations in the US. It is acute and reversible cardiomyopathy with transient decrease in ventricular function and unremarkable angiogram. TCM was initially considered to be a benign condition however recent studies have shown that it may be associated with complications and mortality similar to acute coronary syndrome (ACS). Therefore, its early recognition is fundamental in the management of potentially reversible pathology.

Severe Thrombocytopenia In Infective Endocarditis, Mayuri Patel, Biplov Adhikari, Amrit Devkota, Mahsa Mohebtash

Journal of Community Hospital Internal Medicine Perspectives

Thrombocytopenia can be seen in about 20-25% of patients with bacterial infective endocarditis (IE). Platelets have a major role in the pathogenesis of endocarditis, and they are also sensitive monitors of systemic host response to bacteremia. Thrombocytopenia on presentation of patients with IE identifies higher risk groups and carries higher mortality risk. The presence of thrombocytopenia is an independent prognosticator of poor outcomes in IE. We present a case of a 40-year-old male with the history of injection drug use who was diagnosed with IE and was found to have severe thrombocytopenia on admission was treated with intravenous antibiotics, which …

Plasma Metabolomics And Quantitative Interstitial Abnormalities In Ever-Smokers, Bina Choi, Raúl San José Estépar, Suneeta Godbole, Jeffrey L Curtis, Jennifer M Wang, Rubén San José Estépar, Ivan O Rosas, Jared R Mayers, Brian D Hobbs, Craig P Hersh, Samuel Y Ash, Meilan K Han, Russell P Bowler, Kathleen A Stringer, George R Washko, Wassim W Labaki

Faculty, Staff and Students Publications

BACKGROUND: Quantitative interstitial abnormalities (QIA) are an automated computed tomography (CT) finding of early parenchymal lung disease, associated with worse lung function, reduced exercise capacity, increased respiratory symptoms, and death. The metabolomic perturbations associated with QIA are not well known. We sought to identify plasma metabolites associated with QIA in smokers. We also sought to identify shared and differentiating metabolomics features between QIA and emphysema, another smoking-related advanced radiographic abnormality.

METHODS: In 928 former and current smokers in the Genetic Epidemiology of COPD cohort, we measured QIA and emphysema using an automated local density histogram method and generated metabolite profiles …

Potential Effects Of Masking, Quarantine, Treatment, And Vaccines On Swine Flu, Helen Pennington, Erin Bodine

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

Discovery, Structure-Activity Relationship And In Vitro Anticancer Activity Of Small-Molecule Inhibitors Of The Protein-Protein Interactions Between Af9/Enl And Af4 Or Dot1l, Xin Li, Xiaowei Wu, Shenyou Nie, Jidong Zhao, Yuan Yao, Fangrui Wu, Chandra Bhushan Mishra, Md Ashraf-Uz-Zaman, Bala Krishna Moku, Yongcheng Song

Faculty, Staff and Students Publications

Simple Summary

Chromosomal translocations involving the mixed lineage leukemia (MLL) gene generate potent fusion oncogenes and cause acute myeloid leukemia or lymphocytic leukemia, which account for ~75% infant and 5–10% child/adult acute leukemia cases with a poor prognosis (5-year survival rates < 45%). Protein–protein interactions between the most frequent MLL fusion partner proteins AF9/ENL and AF4 or histone methyltransferase DOT1L are critical to malignant gene expression and are therefore a potential drug target for cancer. Compound screening followed by medicinal chemistry studies identified several novel small-molecule inhibitors showing strong inhibition of these protein–protein interactions, significant suppression of characteristic gene expression, and robust cellular anticancer activities with negligible cytotoxicity. These compounds are useful chemical probes for biological studies of these protein–protein interactions, as well as pharmacological leads for further drug development against MLL-rearranged and other leukemias.

Abstract

Chromosomal translocations involving the mixed lineage leukemia (MLL) gene cause 5–10% acute leukemias with poor clinical outcomes. Protein–protein interactions (PPI) between the most frequent MLL fusion partner proteins AF9/ENL and AF4 or histone methyltransferase DOT1L are drug targets for MLL-rearranged (MLL-r) leukemia. Several benzothiophene-carboxamide compounds were identified as novel inhibitors of these PPIs with IC₅₀ values as …

Incidence And Risk Factors For Pneumonitis Associated With Checkpoint Inhibitors In Advanced Non-Small Cell Lung Cancer: A Single Center Experience, Mehmet Altan, Felipe Soto, Linda L Zhong, Fechukwu O Akhmedzhanov, Nathaniel R Wilson, Abdulrazzak Zarifa, Aya A Albittar, Vincent Yang, Jeff Lewis, Waree Rinsurongkawong, J Jack Lee, Vadeerat Rinsurongkawong, Jianjun Zhang, Don L Gibbons, Ara A Vaporciyan, Kristofer Jennings, Fareed Khawaja, Saadia A Faiz, Vickie R Shannon, Girish Shroff, Myrna C B Godoy, Naval G Daver, Saumil Gandhi, Tito R Mendoza, Aung Naing, Carrie Daniel-Macdougall, John V Heymach, Ajay Sheshadri

Faculty, Staff and Student Publications

INTRODUCTION: Immune checkpoint inhibitor (ICI) pneumonitis causes substantial morbidity and mortality. Estimates of real-world incidence and reported risk factors vary substantially.

METHODS: We conducted a retrospective review of 419 patients with advanced non-small cell lung cancer (NSCLC) who were treated with anti-PD-(L)1 with or without anti-CTLA-4 therapy. Clinical, imaging, and microbiological data were evaluated by multidisciplinary adjudication teams. The primary outcome of interest was grade ≥2 (CTCAEv5) pneumonitis. Clinicopathologic variables, tobacco use, cancer therapies, and preexisting lung disease were assessed for univariate effects using Cox proportional hazards models. We created multivariate Cox proportional hazards models to assess risk factors for …

Direct Cohort: An Ncorp Longitudinal Observational Trial For Disparities In Results Of Immune Checkpoint Inhibitor Treatment Between Black And White Cancer Patients, Song Yao, Christine B. Ambrosone, Lori Sakoda, Igor Puzanovci, Eva Culakova, Michelle Janelsins, Warren Davis, Thaer Khoury, Elisa Rodriguez, Shipra Gandhi, Allison Magnuson, Guilherme Cantuaria, Jennifer M. Suga, Rajasree P. Chowdry, Lawrence H. Kushi, Karen Mustian, Gary R. Morrow, Charles Kamen

School of Medicine Faculty Publications

38th Annual Meeting of the Society for Immunotherapy of Cancer's, SITC 2023, November 1 -5, 2023, San Diego, CA

Established And Emerging Device Therapy In Heart Failure: Cardiac Contractility Modulation, Justin Haloot, Mihail G Chelu

The Texas Heart Institute Journal

No abstract provided.

Rare De Novo Gain-Of-Function Missense Variants In Dot1l Are Associated With Developmental Delay And Congenital Anomalies, Zelha Nil, Ashish R Deshwar, Yan Huang, Scott Barish, Xi Zhang, Sanaa Choufani, Polona Le Quesne Stabej, Ian Hayes, Patrick Yap, Chad Haldeman-Englert, Carolyn Wilson, Trine Prescott, Kristian Tveten, Arve Vøllo, Devon Haynes, Patricia G Wheeler, Jessica Zon, Cheryl Cytrynbaum, Rebekah Jobling, Moira Blyth, Siddharth Banka, Alexandra Afenjar, Cyril Mignot, Florence Robin-Renaldo, Boris Keren, Oguz Kanca, Xiao Mao, Daniel J Wegner, Kathleen Sisco, Marwan Shinawi, Undiagnosed Disease Network, Michael F Wangler, Rosanna Weksberg, Shinya Yamamoto, Gregory Costain, Hugo J Bellen

Faculty, Staff and Students Publications

Misregulation of histone lysine methylation is associated with several human cancers and with human developmental disorders. DOT1L is an evolutionarily conserved gene encoding a lysine methyltransferase (KMT) that methylates histone 3 lysine-79 (H3K79) and was not previously associated with a Mendelian disease in OMIM. We have identified nine unrelated individuals with seven different de novo heterozygous missense variants in DOT1L through the Undiagnosed Disease Network (UDN), the SickKids Complex Care genomics project, and GeneMatcher. All probands had some degree of global developmental delay/intellectual disability, and most had one or more major congenital anomalies. To assess the pathogenicity of the DOT1L …

The Silence Of Mitotic Figures, Hope K. Haefner Md

Patient Experience Journal

A career in medicine is guided by the patients you treat and those who have taught you to treat these individuals. Communication is of utmost importance in all aspects of healthcare. However, there are times when communication can be difficult. This story takes you through a physician’s experience that led to a career in women’s healthcare, reflecting on the silence that prevailed as her journey began.

Experience Framework

This article is associated with the Staff & Provider Engagement lens of The Beryl Institute Experience Framework (https://theberylinstitute.org/experience-framework/).

• Access other PXJ articles related to this lens.
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Social Determinants May Limit The Success Of Pcsk9 Inhibitors, An Effective Treatment For Hyperlipidemia In Statin-Intolerant Patients, Abigail C. Kuplicki

Clinical Research in Practice: The Journal of Team Hippocrates

A clinical decision report using:

Moriarty PM, Thompson PD, Cannon CP, et al. Efficacy and safety of alirocumab vs ezetimibe in statin-intolerant patients, with a statin rechallenge arm: The ODYSSEY ALTERNATIVE randomized trial. J. Clin. Lipidol. 2015;9(6):758-769. https://doi.org/10.1016/j.jacl.2015.08.006

for a statin-intolerant patient with hyperlipidemia.

Slow Surgical Correction Affects More Than Just The Bowels, Emilia M. Clementi

Clinical Research in Practice: The Journal of Team Hippocrates

Reflection on how delayed colostomy reversal affects a patient's mental and physical well-being.

Improving Effective Care In Obese Patients In A Primary Care Clinic, Amy Miller

Journal of Interprofessional Practice and Collaboration

Background: Obesity is a preventable epidemic and costs the United States $200 billion annually. The leading causes of death are linked to obesity.

Local Problem: In a chart review, 53% of patients at a northeast Louisiana primary care clinic were obese. However, none were offered comprehensive lifestyle intervention. The aim was to increase the percentage of patients with BMI < 30 kg/m2 to 60% over 8 weeks.

Methods: A rapid-cycle quality improvement initiative was implemented using four Plan-Do-Study-Act cycles over 8 weeks. Each cycle produced tests of change related to screening, patient and team engagement, and assessing effective care. Run charts and aggregate tables were used to analyze …

Cgm Use With Interprofessional Therapy Management Improves Hba1c Levels In T2dm Patients, Stephen R. Hill, Courtney Robertson, Teri B. O'Neal, Sonia Garner

Journal of Interprofessional Practice and Collaboration

Background

Type 2 Diabetes Mellitus (T2DM) is a chronic disease state with increased complications over time from uncontrolled glucose. Significant data has shown benefits of continuous glucose monitoring (CGM) in reducing glycated hemoglobin (HbA1c) levels of Type 1 Diabetes Mellitus (T1DM) patients, but a lack of robust evidence is seen in T2DM. This study assessed the impact of short-term CGM placement on HbA1c levels in T2DM.

Objectives

The primary outcome was the change in baseline HbA1c levels in patients with T2DM up to six months after CGM placement. Secondary outcomes assessed intensification of diabetes medications made by an interprofessional team …

Enhancing Diabetes Care In Lmics: Insights From A Multinational Consensus, Jose Carlos Miranda, S Abbas Raza, Babatope Kolawole, Jahanzeb Kamal Khan, Atiba Alvi, Fariha Sadiq Ali, Ejim Emmanuel Chukwudi, Nanik Ram, Amira Oluwatoyin

Section of Diabetes, Endocrinology and Metabolism

The International Cardio-Metabolic Forum held a plenary session to establish a multinational consensus on the challenges faced in diabetes management within lower-middle-income countries (LMICs) and their potential solutions. Stakeholders, including patients, family/caretakers, healthcare professionals, and healthcare policymakers & organizations, participated in discussions. The audience of 280 doctors from 15 different countries (Pakistan, Qatar, Sri Lanka, Kenya, Myanmar, Georgia, Nigeria, Philippines, Uzbekistan, Iraq, Tanzania, Cambodia, Kazakhstan, South Sudan and Libya) was divided into 4 groups led by Group Leaders to represent each stakeholder group. Questionnaires addressing key challenges and solutions specific to each group were used to facilitate consensus development. Participants …

Diabetes-Associated Hyperglycemia Causes Rapid-Onset Ocular Surface Damage, Judy Weng, Christopher Ross, Jacob Baker, Saleh Alfuraih, Kiumars Shamloo, Ajay Sharma

Pharmacy Faculty Articles and Research

Purpose: The metabolic alterations due to chronic hyperglycemia are well-known to cause diabetes-associated complications. Short-term hyperglycemia has also been shown to cause many acute changes, including hemodynamic alterations and osmotic, oxidative, and inflammatory stress. The present study was designed to investigate whether diabetes-associated hyperglycemia can cause rapid-onset detrimental effects on the tear film, goblet cells, and glycocalyx and can lead to activation of an inflammatory cascade or cellular stress response in the cornea.

Methods: Mouse models of type 1 and type 2 diabetes were used. Tear film volume, goblet cell number, and corneal glycocalyx area were measured on …

Dha Shortage Causes The Early Degeneration Of Photoreceptors And Rpe In Mice With Peroxisomal Β-Oxidation Deficiency, Daniëlle Swinkels, Sai Kocherlakota, Yannick Das, Adriaan D. Dane, Eric J.M. Wever, Frédéric M. Vaz, Nicolas G. Bazan, Paul P. Van Veldhoven, Myriam Baes

School of Medicine Faculty Publications

PURPOSE. Patients deficient in peroxisomal β-oxidation, which is essential for the synthesis of docosahexaenoic acid (DHA, C22:6n-3) and breakdown of very-long-chain polyunsaturated fatty acids (VLC-PUFAs), both important components of photoreceptor outer segments, develop retinopathy present with retinopathy. The representative mouse model lacking the central enzyme of this pathway, multifunctional protein 2 (Mfp2−/−), also show early-onset retinal decay and cell-autonomous retinal pigment epithelium (RPE) degeneration, accompanied by reduced plasma and retinal DHA levels. In this study, we investigated whether DHA supplementation can rescue the retinal degeneration of Mfp2−/− mice. METHODS. Mfp2+/− breeding pairs and their offspring were fed a 0.12% DHA …

Effect Of The Covid-19 Pandemic On The Epidemiology Of Pediatric Traumatic Brain Injury In Brazil, Leopoldo Mandic Ferreira Furtado, José Aloysio Da Costa Val Filho, Victor Da Silva Pereira, Yasmin S Coimbra, Vitor Hugo R Caldas, Anne R Magalhães, Bruna Athayde S De Carvalho, Saulo G Moreira, Antônio L Teixeira, Aline Silva De Miranda

Faculty, Staff and Student Publications

Aim: In response to the coronavirus 2019 disease (COVID-19) pandemic, governments worldwide implemented measures to prevent infection, resulting in restricted school activities, restricted children’s freedom of movement, and increased risk of violence and injuries at home, including traumatic brain injury (TBI), among children. In Brazil, the consequences of the COVID-19 pandemic on the causes, severity, and mortality of pediatric TBI have not yet been investigated. Thus, our study aimed to determine whether the COVID-19 pandemic has affected the epidemiology of pediatric TBI among Brazilian children.

Materials and methods: We investigated the patients with TBI aged <18 years who visited a tertiary trauma center in Brazil in 2019 and 2020. TBI-related variables, such as classification, mechanism, clinical manifestations, need for intervention, morbidity, and mortality, were recorded. Furthermore, we used a nationwide databank to collect information on mortality from external causes of trauma and violence in the pediatric population in 2019 and 2020. The Mann-Whitney test was used to compare quantitative variables related to the mechanisms and severity of TBI in both periods in order to determine the impact of the COVID-19 pandemic.

Results: Of the patients with …

Geographic Variation In Late-Stage Cervical Cancer Diagnosis, Itunu O Sokale, Aaron P Thrift, Jane Montealegre, Victor Adekanmbi, Onyema G Chido-Amajuoyi, Ann Amuta, Lorraine R Reitzel, Abiodun O Oluyomi

Faculty, Staff and Students Publications

IMPORTANCE: There are stark disparities in cervical cancer burden in the United States, notably by race and ethnicity and geography. Late-stage diagnosis is an indicator of inadequate access to and utilization of screening.

OBJECTIVE: To identify geospatial clusters of late-stage cervical cancer at time of diagnosis in Texas.

DESIGN, SETTING, AND PARTICIPANTS: This population-based cross-sectional study used incident cervical cancer data from the Texas Cancer Registry from 2014 to 2018 of female patients aged 18 years or older. Late-stage cervical cancer cases were geocoded at the census tract level (n = 5265) using their residential coordinates (latitude and longitude) at …

Protein Advanced Glycation End Products And Their Implications In Pancreatic Cancer, Lakmini Senavirathna, Sheng Pan, Ru Chen

Faculty, Staff and Students Publications

Protein advanced glycation end products (AGE) formed by nonenzymatic glycation can disrupt the normal structure and function of proteins, and stimulate the receptor for AGEs (RAGE), triggering intricate mechanisms that are etiologically related to various chronic diseases, including pancreatic cancer. Many common risk factors of pancreatic cancer are the major sources for the formation of protein AGEs and glycative stress in the human body. Abnormal accumulation of protein AGEs can impair the cellular proteome and promote AGE-RAGE driven pro-inflammatory signaling cascades, leading to increased oxidative stress, protease resistance, protein dysregulation, transcription activity of STAT, NF-κB, and AP-1, aberrant status in …

Monitoring The Treatment Of Urea Cycle Disorders Using Phenylbutyrate Metabolite Analyses: Still Many Lessons To Learn, Kevin E Glinton, Charles G Minard, Ning Liu, Qin Sun, Sarah H Elsea, Lindsay C Burrage, Sandesh C S Nagamani

Faculty, Staff and Students Publications

Medications that elicit an alternate pathway for nitrogen excretion such as oral sodium phenylbutyrate (NaPBA) and glycerol phenylbutyrate (GPB) and intravenous sodium phenylacetate (NaPAA) are important for the management of urea cycle disorders (UCDs). Plasma concentrations of their primary metabolite, phenylacetate (PAA), as well as the ratio of PAA to phenylacetylglutamine (PAGN) are useful for guiding dosing and detecting toxicity. However, the frequency of toxic elevations of metabolites and associated clinical covariates is relatively unknown. A retrospective analysis was conducted on 1255 plasma phenylbutyrate metabolite measurements from 387 individuals. An additional analysis was also conducted on a subset of 68 …

Time To Consider The Potential Role Of Alternative Resistance Training Methods In Cancer Management?, Francesco Bettariga, Chris Bishop, Dennis R. Taaffe, Daniel A. Galvão, Luca Maestroni, Robert U. Newton

Research outputs 2022 to 2026

Exercise has emerged as fundamental therapeutic medicine in the management of cancer. Exercise improves health-related outcomes, including quality of life, neuromuscular strength, physical function, and body composition, and it is associated with a lower risk of disease recurrence and increased survival. Moreover, exercise during or post cancer treatments is safe, can ameliorate treatment-related side effects, and may enhance the effectiveness of chemotherapy and radiation therapy. To date, traditional resistance training (RT) is the most used RT modality in exercise oncology. However, alternative training modes, such as eccentric, cluster set, and blood flow restriction are gaining increased attention. These training modalities …

“Is My Brain Ever Going To Work Fully Again?”: Challenges And Needs Of Cancer Survivors With Persistent Cancer-Related Cognitive Impairment, Darren Haywood, Evan Dauer, Frank D. Baughman, Blake J. Lawrence, Susan L. Rossell, Nicolas H. Hart, Moira O’Connor

Research outputs 2022 to 2026

Many cancer survivors experience cognitive impairments that impact memory, concentration, speed of information processing, and decision making. These impairments, collectively known as cancer-related cognitive impairments (CRCIs), are a key domain of unmet needs and can significantly impact a cancer survivor’s identity and quality of life. However, there are no purpose-built, multi-domain, needs assessment tools specifically for CRCI. The development of such tools requires an in-depth understanding of cancer survivors’ CRCI-specific challenges and associated needs. This study explored the challenges and associated needs of cancer survivors with persistent CRCI. An in-depth qualitative design using semi-structured interviews with (a) cancer survivors with …

Establishment Of A Consensus Protocol To Explore The Brain Pathobiome In Patients With Mild Cognitive Impairment And Alzheimer’S Disease: Research Outline And Call For Collaboration, Richard Lathe, Nikki M Schultek, Brian J Balin, Garth D Ehrlich, Lavinia Alberi Auber, George Perry, Edward B Breitschwerdt, David B Corry, Richard L Doty, Robert A Rissman, Peter L Nara, Ruth Itzhaki, William A Eimer, Rudolph E Tanzi, Intracell Research Group Consortium Collaborators

Faculty, Staff and Students Publications

Microbial infections of the brain can lead to dementia, and for many decades microbial infections have been implicated in Alzheimer's disease (AD) pathology. However, a causal role for infection in AD remains contentious, and the lack of standardized detection methodologies has led to inconsistent detection/identification of microbes in AD brains. There is a need for a consensus methodology; the Alzheimer's Pathobiome Initiative aims to perform comparative molecular analyses of microbes in post mortem brains versus cerebrospinal fluid, blood, olfactory neuroepithelium, oral/nasopharyngeal tissue, bronchoalveolar, urinary, and gut/stool samples. Diverse extraction methodologies, polymerase chain reaction and sequencing techniques, and bioinformatic tools will …

Epidemiology Of Giardiasis And Assemblages A And B And Effects On Diarrhea And Growth Trajectories During The First 8 Years Of Life: Analysis Of A Birth Cohort In A Rural District In Tropical Ecuador, Tannya Sandoval-Ramírez, Victor Seco-Hidalgo, Evelyn Calderon-Espinosa, Diana Garcia-Ramon, Andrea Lopez, Manuel Calvopiña, Irene Guadalupe, Martha Chico, Rojelio Mejia, Irina Chis Ster, Philip J Cooper

Faculty, Staff and Students Publications

BACKGROUND: There are limited longitudinal data on the acquisition of Giardia lamblia infections in childhood using molecular assays to detect and type assemblages, and measure effects of infections on diarrhea risk and childhood growth.

METHODS: We analysed stool samples from a surveillance sample within a birth cohort in a rural district in tropical Ecuador. The cohort was followed to 8 years of age for the presence of G. lamblia in stools by quantitative PCR and A and B assemblages by Taqman assay or Sanger sequencing. We explored risk factors associated with infection using generalized estimating equations applied to longitudinal binary …

Delays In Hepatitis B Immunization Series Completion In People With Human Immunodeficiency Virus, Daanish Sheikh, Kristen A Staggers, Jennifer Carey, Wendy A Keitel, Robert L Atmar, Hana M El Sahly, Jennifer A Whitaker

Faculty, Staff and Students Publications

BACKGROUND: Studies have demonstrated low hepatitis B virus (HBV) vaccine series completion among persons with human immunodeficiency virus (HIV).

METHODS: We conducted a retrospective record review of persons entering HIV care at 2 clinics in Houston, Texas, between 2010 and 2018. Kaplan-Meier curves summarized time to receipt of HBV vaccines for those eligible for vaccination. We estimated the proportions of patients who had received 1, 2, or 3 HBV vaccine doses at 12 and 24 months after entry to care. A Prentice Williams and Peterson total time model was used to evaluate associations between patient characteristics and time to vaccination. …