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Biostatistics and Research Methods

The American Heritage Dictionary defines statistics as: "The mathematics of the collection, organization, and interpretation of numerical data, especially the analysis of population characteristics by inference from sampling." The Merriam-Webster's Collegiate Dictionary definition is: "A branch of mathematics dealing with the collection, analysis, interpretation, and presentation of masses of numerical data." The steps of statistical analysis involve collecting information, evaluating it, and drawing conclusions.

Statisticians provide crucial guidance in determining what information is reliable and which predictions can be trusted. They often help search for clues to the solution of a scientific mystery, and sometimes keep investigators from being misled by false impressions. Statisticians help determine the sampling and data collection methods, monitor the execution of the study and the processing of data, and advise on the strengths and limitations of the results. They must understand the nature of uncertainties and be able to draw conclusions in the context of particular statistical applications.

Statistical planning, analysis, and inference is so crucial to the kind of research conducted by Hopkins GIM researchers that the Division has built a cadre of in-house methodologists, trained in epidemiology and biostatistics, who work side-by-side with content-oriented clinical researchers and their trainees.

Information about the faculty working in this research area and their projects is provided below.

Josef Coresh, MD, PhD, MHS
G.W. Comstock Professor of Epidemiology
Joint Appointments in Biostatistics and Medicine

Director, George W. Comstock Center for Public Health Research and Prevention (GWCC)
Core Faculty, Welch Center for Prevention, Epidemiology, and Clinical Research
Research Interests: Epidemiologic and statistical methods in cardiovascular research

To see publication abstracts: PUBMED

Eliseo Guallar, MD, DrPH
Professor of Epidemiology and Medicine
Core Faculty, Welch Center for Prevention, Epidemiology, and Clinical Research
Research Interests: Meta-analysis
To see publication abstracts:
PUBMED

Karen A. Robinson, MSc, PhD
Associate Professor of Medicine, Epidemiology and Health Policy and Management
Co-Director, Evidence-Based Practice Center, JHSPH
Research and professional interests: Evidence-based health care, health informatics
To see publication abstracts: PubMed

Dhananjay (Jay) Vaidya, MD, PhD
Associate Professor of Medicine
Research Interests: Epidemiologic methods in cardiovascular research
To see publication abstracts:
PUBMED

Nae-Yuh Wang, PhD
Associate Professor of Medicine and Biostatistics
Director of Biostatistics, Bayview General Clinical Research Unit
Core Faculty, Welch Center for Prevention, Epidemiology, and Clinical Research
Research Interests: Statistical methods in clinical research
To see publication abstracts:
PUBMED

Jessica Yeh, PhD
Associate Professor of Medicine and Epidemiology

Core Faculty, Welch Center for Prevention, Epidemiology, and Clinical Research
Research Interests: Methods in epidemiology and controlled trials, clinical research mentorship, diabetes and novel complications, obesity
To see publication abstracts:
PUBMED


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