Expert Details

Expert in Biostatistics, Statistics, Programming, and Epidemiology

Expert ID: 733196 Texas, USA

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This expert is a Harvard PhD graduate and currently Associate Professor of Biostatistics at a U.S. university, where her position is tenured. Her biostatistical and statistical research and teaching includes applications Immunology and Infectious Diseases; Pathology; Epidemiology; Anesthesiology, Perioperative, and Pain Medication; Neurology; Cardiovascular disease; Psychiatry; and Psychology.

Expert's career focus has been the design, analysis, and methodological issues across a range of clinical and public health areas including cancer epidemiology, cardiovascular disease, neurological disease including stroke and traumatic brain injury, dietary epidemiology, and mental health and substance.

Expert has a solid understanding and demonstrated expertise in general statistical methodology, and especially methodological issues in above-mentioned areas, including longitudinal data analysis, survey design and analysis, psychometrics, analysis of large observational data bases using state-of-the art causal inference techniques, advanced methods for survival analysis, non-linear models, and non-parametrics, latent variable analysis including structural equation modeling and factor analysis, meta-analysis, systematic reviews, publication bias, validation of self-report measures (e.g., quality of life, dietary intake, substance use reports), scale and medical device validation using receiver operator characteristics. She also has a wide range of academic interests and expertise encompassing both theory and practice in modern statistics. More important, she is driven to constantly learn new tasks and add more training to her skill set.

Expert has published extensively on latent variable models for misclassified outcomes, joint models for longitudinal count data, Bayesian statistical methods and software, methods for correcting information bias, e.g., misclassified outcomes/co-variates, variable selection, propensity scoring, methods for validating new devices/diagnostics compared to previously established tests, and novel methods for meta-analysis and publication bias. For instance, she developed and published on frequentist and Bayesian methods for latent variable analysis and variable selection to predict cancer subtypes from genetic data, in the presence of outcome information bias (measurement error). She has also published on hidden Markov models, propensity matching methods for confounding, and multivariate methods for outcome reporting bias in a variety of areas, including self-report variables. Her secondary academic interests target statistical methods for bias correction inherent in epidemiological studies -- for example, those collected from clinical convenience samples, surveys, or electronic health records

Overall, Expert has extensive expertise in simulation, model validation, and programming in all statistical languages, using both frequentist and Bayesian paradigms. She is published in the above mentioned areas with over 60 peer-reviewed publications since 2008. She has also taught at a Ph.D level for 12 years (survival analysis, linear regression, linear models, multivariate statistics, and teaching experiences), and is forever eager to take on new challenges.

She is an expert in SAS, R, STATA, SPSS, WinBUGS, JAGS, openBUGS computing environments, and am proficient in SUDAAN, MATLAB, C++ languages and computing environments. She is also conversational in the Spanish language.

Much of the Expert's work involves design and rigorous statistical analysis of randomized controlled trials, as well as the analysis of large epidemiological survey databases such as CDC’s NHANES data base, NIH’s National Longitudinal Survey of Youth, and similarly designed surveys that incorporate complex sampling weights. Several of the large randomized controlled trials she has designed and analyzed also employ complex clustered designs similar to these stratified clustered surveys.

Expert's epidemiologic work has specifically focused on cancer, substance use, and cardiovascular disease, e.g., determining risk factors for these diseases from these large, observational data bases. For such studies, in addition to standard classical statistical analyses, Expert has developed and applied data mining and state-of-the-art frequentist and Bayesian clustering and variable selection methods. She has written papers on misclassification of outcomes, and utilized joint modeling approach for missing data. She has used similar data mining methods to analyze large medical records data bases to determine pharmacological agents that reduce cancer incidence. She has developed and compared missing data algorithms for large epidemiologic genetic studies, and has utilized causal inference techniques such as propensity matching to draw inference from observational studies with extensive confounding. Her additional areas of interest in epidmiology include fetal and maternal health, environmental risk factors for disease, and alcohol and substance use research. She is published in the above-mentioned areas including in high-impact publications such as JAMA, Circulation, Archives of General Psychiatry, Critical Care Medicine, Drug and Alcohol Dependence, NeuroImage, PLOS One, Biometrics, Biostatistics, Journal of the Royal Statistical Society, Statistical Methods in Medical Research, Medical Decision Making, and Statistics in Medicine. She has served as a reviewer for 25 journals and have served as a scientific reviewer for National Institute of Health (NIH) and the Department of Defense. She has been the recipient of multiple highly competitive research grants from the NIH to research the above-mentioned topics.

Expert may consult nationally and internationally, and is also local to the following cities: Houston, Texas - Pasadena, Texas - Beaumont, Texas - College Station, Texas - Baytown, Texas - Bryan, Texas - Sugar Land, Texas - Port Arthur, Texas - Galveston, Texas - Missouri City, Texas

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Year Degree Subject Institution
Year: 2007 Degree: PhD Subject: Biostatistics Institution: Harvard University
Year: 2002 Degree: MS Subject: Biostatistics Institution: Columbia University
Year: 1999 Degree: AB Subject: Mathematics, Biology Institution: Dartmouth College

Work History

Years Employer Title Department Responsibilities
Years: 2012 to Present Employer: Undisclosed Title: Associate Professor Department: Biostatistics Responsibilities: Expert is a tenured Biostatistics professor at a U.S. university.
Years: 2007 to 2012 Employer: MUSC Title: Associate Professor Department: Biostatistics and Epidemiology Responsibilities: Expert was Associate Professor of Biostatistics and Epidemiology at this U.S. university. Prior to this time, she was Assistant and then Associate Professor of Biostatistics and Epidemiology at a different U.S. university. (2007-11).
Years: 2008 to 2012 Employer: Various Universities Title: Visiting Statistician Department: Responsibilities: Expert served Cambridge University in the MRC Biostatistics Unit from 2011-12. Prior to this time, she was a Visiting Statistician at the Karolinska Institute (2008, 2011) in the Epidemiology department.
Years: 1999 to 2006 Employer: Various Title: Various Department: Responsibilities: Expert was a Consultant to Brigham and Women's Hospital (2005-06), where she worked in the Anesthesiology, Perioperative and Pain Medication department. Previously, she was a Teaching Assistant at Harvard University (2002-06), in the Biostatistics department. She was Research Assistant of Pathology and Epidemiology at Columbia University (2000-02). Previously she was a Research Fellow with the Centers for Disease Control (1999-2000) in the Department of Immunology and Infectious Diseases.

Government Experience

Years Agency Role Description
Years: 2011 to 2016 Agency: Nationa Institute of Health Role: Grant Reviewer Description: Expert has voluntarily reviewed grants for NIH across a variety of subject areas for statsticcal design and analysis integrity.

Career Accomplishments

Associations / Societies
American Statistical Association
International Biometrics Society (ENAR)
American Statistical Association President 2015 (Texas Chapter)
American Heart Association
College of Problems on Drug Dependence
Professional Appointments
Expert has served as a Referee of the following publications: Statistics in Medicine, Biometrics, Biostatistics, Journal of the Royal Statistical Society Series A, Statistics and Computing, Journal of Applied Statistics, Statistica Neederlandica, Health Services and Outcomes Research, Biometrical Journal, American Journal of Epidemiology, Journal of Clinical Epidemiology, Medical Decision Making, Journal of Agricultural, Biological, and Environmental Statistics, Circulation, American Journal on Addictions, Drug and Alcohol Dependence, American Journal of Drug and Alcohol Abuse.
Publications and Patents Summary
Expert has held a number of peer-reviewed research grants. She has published 64 papers and has several additional publications. She has given a number of invited oral presentations both nationally and internationally at universities, institutes, and conferences.

Language Skills

Language Proficiency
Spanish Conversational, reading, writing, speaking

Fields of Expertise

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