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Biostatistics

Abstract image of box plots

Biostatistics is the application of statistical techniques for scientific research in health-related fields, including medicine, biology and public health. It also encompasses development of novel methodologies that translate to better study design and analyses.

Biostatistics also contributes substantially to the area of Data Science through statistical learning techniques. Since the beginning of the 20th century, the field of biostatistics has become an indispensable tool in improving health and reducing illness. Epidemiology is concerned with the distribution, causation, and control of disease across time and space in human populations.

The Mission of the Division of Biostatistics is to:

  • Provide quality statistical support in research design and analysis developed by the clinical and laboratory investigators.
  • Train medical students, graduate students, postdoctoral fellows and other research staff in the use of statistical methods and software.
  • Train the next generation of biostatisticians and data scientists.
  • Develop innovative statistical research guided by and benefiting clinical and laboratory based research projects.
  • Create and/or assist with epidemiologic studies in the fields of hypertension, women's health, perioperative outcomes and anesthesia.

The division was formed in October 2004, under the Medical College’s Strategic Plan for further development and retention of research scholars by fostering collaborations with biostatisticians and epidemiologists to further enhance and advance WCM research.

Affiliated Education Program

Biostatistics & Data Science Master's Track

Current Research Highlights

Association between overcrowded households, multigenerational households, and COVID-19: a cohort study

September 8, 2021

Until now, researchers have not completely understood the association between overcrowded and multigenerational households in New York City and the risk of spreading COVID-19. Nathaniel Hupert, MD, MPH, associate professor of population health sciences; Said Ibrahim, MD, MBA, MPH, professor of population health sciences at the time of the study; Anjile An, MPH, programmer analyst for population health sciences; and colleagues...

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Highlights
New York City housing

Socioeconomic variation in characteristics, outcomes, and healthcare utilization of COVID-19 patients in New York City

August 2, 2021

Since the onset of the COVID-19 pandemic, few studies have examined how clinical outcomes differ by socioeconomic conditions among infected patients. In a new PLOS ONE studyDr. Yongkang Zhang, research associate in population health sciences; Dr. Dhruv Khullar, assistant...

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Highlights
A surgical face mask on the street in New York City.

Dr. Elizabeth Sweeney Receives National Multiple Sclerosis Society Award

May 12, 2021

Dr. Elizabeth Sweeney has been researching multiple sclerosis (MS)—a disease area she is very passionate about—for close to a decade. When she first joined the Department of Population Health Sciences in 2019, one of her goals was to establish a large line of imaging research alongside collaborators at Weill Cornell Medicine. Now, Dr. Sweeney has received the...

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Highlights

Population Health Sciences 402 E. 67th St. New York, NY 10065 Phone: (646) 962-8078

Faculty & Staff

Headshot of Anjile An
Anjile An , MPH
  • Research Biostatistician II
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Karla Ballman, Ph.D.
Karla Ballman , PhD
  • Vice Chair for Education
  • Chief of the Division of Biostatistics
  • Professor of Population Health Sciences
(646) 962-8023
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Samprit Banerjee, Ph.D., MStat
Samprit Banerjee , PhD, MStat
  • Program Director of Ph.D. in Population Health Sciences
  • Associate Professor of Biostatistics in Population Health Sciences
(646) 962-8014
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Colin B. Begg , PhD
  • Professor of Biostatistics in Population Health Sciences
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James G. Booth , PhD, MS, MSc
  • Professor of Biostatistics in Population Health Sciences
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Angela Castile-Krasuski
  • Temporary Analyst Assistant
Photo of Zhengming Chen
Zhengming Chen , PhD, MPH
  • Assistant Professor of Population Health Sciences
(646) 962-8015
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Jacky Choi
Jacky Choi
  • Programmer Analyst
Paul Christos, DrPH, MS
Paul Christos , DrPH, MS
  • Associate Professor of Research in Population Health Sciences
  • Director of Biostatistics and Epidemiology Consulting Service
  • Director of Research Design and Biostatistics Core of the Weill Cornell Clinical and Translational Science Center
(646) 962-8018
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Jason Chua
Jason Chua
  • Programmer Analyst I
Headshot of Victoria Cooley
Victoria Cooley , MS
  • Research Biostatistician II
(646) 962-8008
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 Debra D'Angelo, MS
Debra D'Angelo , MS
  • Assistant Director, Biostatistics Services
(646) 962-3091
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Photo of Ivan Diaz
Ivan Diaz , PhD
  • Assistant Professor of Biostatistics in Population Health Sciences
(646) 962-8062
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Linda Gerber, Ph.D., MA
Linda Gerber , PhD, MA
  • Professor of Population Health Sciences
  • Professor of Epidemiology in Medicine
(646) 962-8020
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Nima Hejazi
Nima Hejazi , MS, PhD
  • Postdoctoral Associate in Population Health Sciences
Kaylee Ho , M.S.
  • Research Biostatistician I
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Headshot of Katherine Hoffman
Katherine Hoffman , MS
  • Research Biostatistician II
(646) 962-8032
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Giles Hooker , PhD, MSc
  • Associate Professor of Biostatistics in Population Health Sciences
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Jihui Lee , PhD, MS
  • Instructor of Population Health Sciences
(646) 962-8138
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Yao Lu, MS
Yao Lu
  • Research Biostatistician III
(646) 962-8033
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Headshot of Xiaoyue Ma
Xiaoyue Ma , M.Sc.
  • Research Biostatistician III
(646) 962-8029
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Valerie Mike
Valerie Mike , PhD, MS
  • Clinical Professor Emerita of Biostatistics in Population Health Sciences
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Eshani Pareek
Eshani Pareek
  • Healthcare Data Specialist
Yuqing Qiu
Yuqing Qiu
  • Research Biostatistician
Ronald N. Riner , MD
  • Assistant Professor of Population Health Sciences (Courtesy)
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Brady Rippon , MS
  • Research Biostatistician II
 Arindam RoyChoudhury, Ph.D., M.Stat.
Arindam RoyChoudhury , PhD
  • Program Director, Certificate Program
  • Associate Professor of Population Health Sciences
(646) 962-8155
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Photo of Oleksandr Savenkov
Oleksandr Savenkov , PhD
  • Assistant Professor of Population Health Sciences
(646) 962-7639
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Will Simmons
Will Simmons , MPH
  • Programmer Analyst
Robert L. Strawderman , ScD, MSc
  • Adjunct Professor of Biostatistics in Population Health Sciences
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Photo of Elizabeth Sweeney
Elizabeth Sweeney , PhD
  • Assistant Professor of Population Health Sciences
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Headshot of Charlene Thomas
Charlene Thomas , MS
  • Research Biostatistician I
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Mohammad Usman
Mohammad Usman , PhD
  • Programmer Analyst
Andrew J. Vickers , DPhil
  • Professor of Population Health Sciences
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Martin T. Wells , PhD, MA
  • Professor of Biostatistics in Population Health Sciences
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Nicholas Williams , MPH
  • Research Biostatistician I
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Headshot of Alan Wu
Alan Wu , MS
  • Research Biostatistician I
(646) 962-7592
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Headshot of Yiyuan Wu
Yiyuan Wu , MS
  • Research Biostatistician III
(646) 962-8073
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Wenna Xi , PhD, MS
  • Postdoctoral Associate in Population Health Sciences
Huaian Yu
Huaian Yu
  • Programmer Analyst
Kathy (Xi) Zhou, Ph.D., MS
Xi Kathy Zhou , PhD, MS
  • Program Director of the M.S. in Biostatistics and Data Science
  • Associate Professor of Biostatistics in Population Health Sciences
(646) 962-8027
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Recent Faculty Publications

A.E. Merkler; N.S. Parikh; S. Mir; A. Gupta; H. Kamel; E. Lin; J. Lantos; E.J. Schenck; P. Goyal; S.S. Bruce; J. Kahan; K.N. Lansdale; N.M. LeMoss; S.B. Murthy; P.E. Stieg; M.E. Fink; C. Iadecola; A.Z. Segal; M. Cusick; T.R. Campion; I. Díaz; C. Zhang; B.B. Navi
2020
K.A. Jaeckle; K.V. Ballman; M. van den Bent; C. Giannini; E. Galanis; P.D. Brown; R.B. Jenkins; G. Cairncross; W. Wick; M. Weller; K.D. Aldape; J.G. Dixon; K. Anderson; J.H. Cerhan; J.S. Wefel; M. Klein; S.A. Grossman; D. Schiff; J.J. Raizer; F. Dhermain; D.G. Nordstrom; P.J. Flynn; M.A. Vogelbaum
2020
M. Gaudino; U. Benedetto; S. Fremes; K. Ballman; G. Biondi-Zoccai; A. Sedrakyan; G. Nasso; J. Raman; B. Buxton; P.A. Hayward; N. Moat; P. Collins; C. Webb; M. Peric; I. Petrovic; K.J. Yoo; I. Hameed; A. Di Franco; M. Moscarelli; G. Speziale; J.D. Puskas; L.N. Girardi; D.L. Hare; D.P. Taggart
2020

Contact Information:
Karla Ballman, Ph.D.
Chief, Division of Biostatistics 
Department of Population Health Sciences
Tel: (646) 962-8023
Fax: (646) 962-0281
kab2053@med.cornell.edu

Mailing Address:
Weill Cornell Medical College
Department of Population Health Sciences Division of Biostatistics and Epidemiology
402 East 67th Street, Box 74
New York, NY 10065

Career Opportunities