Carolyn Westhoff

Carolyn Westhoff

Carolyn Westhoff

Epidemiology and Population and Family Health at the New York Presbyterian Hospital at Columbia University Medical Center


PH16, 630 West 168 St.
NY NY 10032



Dr. Westhoff's work focuses on improving quality of and access to contraceptive and abortion services. She has published over 200 scientific articles relating to safety and effectiveness of contraception and abortion. As a member of National Institute of Child Health and Human Development’s Contraceptive Clinical Trials Network Dr. Westhoff develops new contraceptives using novel pharmaceutical agents. Recent trials evaluated microbicidal agents that can protect against HIV as well as against pregnancy. In addition, trials evaluate new and simpler ways to initiate contraceptive methods, and evaluate whether drug interactions interfere with contraceptive efficacy. Recent studies have evaluated the safety and effectiveness of early abortion using medications. All studies and projects welcome the involvement of public health students as well as clinicians. Dr. Westhoff serves as editor-in-chief of the journal Contraception, a monthly publication for the advancement of reproductive health. The journal, published by Elsevier, is the official journal of the Society of Family Planning and the Association of Reproductive Health Professionals. Dr. Westhoff is a member of the National Academy of Medicine, and is Senior Medical Advisor to Planned Parenthood Federation of America.



Other, 1984, Oxford University- Post Doctoral Work
MSc, 1983, University of London
Other, 1982, Kings County Hospital Center-Residency
MD, 1977, University of Michigan
BS, 1972, University of Michigan

Editorial Boards

Editor-in-Chief, Contraception

Academic Appointments

Sarah Billinghurst Solomon Professor of Reproductive Health, Department of Obstetrics and Gynecology

Other Affiliations

Past President, New York Obstetrical Society

Past Board Chair, Society of Family Planning

Past Member, Board of Directors, and past Chair, National Medical Committee, Planned Parenthood Federation of America

Past Member, Board of Directors, the Guttmacher Institute

Past Member, Board of Directors, Association of Reproductive Health Professionals

Honors & Awards

Alliance for Continuing Education in Health Professions, Award for Outstanding Outcomes Assessment, 2016 (Harper et al, 2015)
NYC Department of Health and Mental Hygiene, Most Impactful Article of 2013, Granted 2015 (Langston et al, 2013)
Association of Reproductive Health Professionals, Alan F. Guttmacher Lectureship Honoree, 2013
Obstetrics and Gynecology, Roy Pitkin Award for best article, 2011
Society of Family Planning, Lifetime Achievement Award, 2010

Areas of Expertise

Adolescent Health, Cancer Screening, Women's Health, Abortion, Contraception, Family Planning, Reproductive Health

Select Publications

Praditpan P, Hamouie A, Basaraba CN, Nandakumar R, Cremers S, Davis AR, Westhoff CL. Pharmacokinetics of levonorgestrel and ulipristal acetate emergency contraception in women with normal and obese body mass index. Contraception 2017 May; 95(5):464-469. PMID: 28126541


Mifeprex REMS Study Group, Raymond E, Blanchard K, Blumenthal P, Cleland K, Foster A, Gold M, Grossman D, Pendergast M, Westhoff C, Winikoff B. Sixteen Years of Overregulation: Time to Unburden Mifeprex.® New England Journal of Medicine 2017 Feb 23;376(8):790-794; PMID: 28225670

Morroni C, Findley M, Westhoff C. Does using the “pregnancy checklist” delay safe initiation of contraception?. Contraception 2017 Apr 30;95(4):331-4; PMID: 28131649

White K, Nucatola D, Westhoff C. Intra-fetal Compared with Intra-amniotic Digoxin Prior to Dilation and Evacuation: A Randomized Controlled Trial. Obstetrics and Gynecology 2016 Nov; 128(5):1071-1076. PMID: 27741192

Aiken A, Westhoff C, Castano P, Trussel J. Comparison of a Timing-Based Measure of Unintended Pregnancy and the London Measure of Unplanned Pregnancy. Perspect Sex Reprod Health 2016 Sep; 48(3):139-46. PMID: 27574959

Harper CC, Rocca CH, Thompson KMJ, Morfesis J, Goodman S, Darney PD, Speidel JJ, Westhoff CL. Reductions in pregnancy rates in the USA with long-acting reversible contraception: a cluster randomized trial. The Lancet 2015; 386(9993): 562-8. PMID: 26091743

Myers J, Ellman T, Westhoff CL. Injectable agents for pre-exposure prophylaxis: Lessons learned from contraception to inform HIV prevention. Curr Opin HIV/AIDS 2015; 10(4):271-7. PMID: 26049953

Morroni C, Heartwell S, Edwards S, Zieman M, Westhoff CL.  The impact of oral contraceptive initiation on young women's condom use: missed opportunities for intervention.  PLoS One 2014; 9(7):e101804. PMID: 25003504


Langston AM, Joslin-Roher SL, Westhoff CL. Immediate post-abortion access to IUDs, implants and DMPA reduces repeat pregnancy within 1 year in a New York City practice. Contraception 2014; 89(2):103-8. Winner of NYC’s DOHMH Most Impactful Article of 2013 Award. PMID: 24309218

Westhoff C, Heartwell S, Edwards S, Zieman M, Cushman L, Robilotto C, Stuart G, Morroni C, Kalmuss D, Quick Start Study Group. Initiation of oral contraceptives using a quick start compared with a conventional start: a randomized controlled trial. Obstetrics & Gynecology 2007 Jun 1;109(6):1270-6. PMID: 17540797

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