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EA
Body measures

Edmund A. Gehan

Historical research profile. Edmund A. Gehan is not affiliated with or endorsed by MedMaths.

Biostatistics and cancer clinical trials

Gehan and George BSA Formula

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Overview

Edmund A. Gehan, PhD (1929–2021), was a biostatistician whose career centred on cancer research at the National Cancer Institute, MD Anderson Cancer Center and Georgetown University. He made influential contributions to survival analysis, phase II clinical-trial design and prognostic-factor studies, and later became Professor Emeritus of Biostatistics at Georgetown. In 1970 he co-authored with Stephen L. George a study estimating human body surface area from height and weight.

Qualifications
PhD
Specialty
Biostatistics and cancer clinical trials
Institutions
National Cancer Institute; The University of Texas MD Anderson Cancer Center; Georgetown University Medical Center
Years active
1929–2021

Formula history

Research contributions

Gehan and George BSA Formula

Formula originally described by Edmund A. Gehan.

Used for: General height-weight BSA estimation; equation published in Cancer Chemotherapy Reports

Evidence trail

Original research

Gehan EA, George SL. Estimation of human body surface area from height and weight. Cancer Chemotherapy Reports. 1970;54(4):225-235

View on PubMed (PMID 5527019)

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Formula co-author

BSA Calculator

Calculate body surface area from metric or imperial height and weight using four published formulas.

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A plain-English comparison of Mosteller, Du Bois, Haycock and Gehan & George, why their estimates differ, and how to handle formula choice safely.

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Researchers connected to this work

SL
Body measures

Stephen L. George

Biostatistics and clinical trials

Known for

Gehan and George BSA Formula

1 publication 1 linked calculatorProfile

About this profile

This source-based research reference profile draws on the original publications above and verified external sources. Edmund A. Gehan is not affiliated with or endorsed by MedMaths. Unconfirmed fields are left blank rather than estimated.

biostatistics.georgetown.edu irp.nih.gov pubmed.ncbi.nlm.nih.gov

Reference data verified: 2026-08-11

See the methodology and editorial policy for the wider sourcing process.

Profile at a glance

Formulas
1
Publications
1
Verified links
1

Research focus

BiostatisticsClinical trials methodologyBody surface area estimationCancer research

Research profiles

  • Georgetown University profile and scholarship biography

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