2026 William M. Callaghan: Medicine Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Medicine	86	13977	13161	7093	6566	173	31813

Overview

William M. Callaghan is affiliated with the Centers for Disease Control and Prevention in the United States. Their research primarily focuses on medicine, with a significant concentration in pediatrics, perinatology and child health, and obstetrics and gynecology. Additional subfields include clinical psychology, general health professions, and emergency medicine.

The main topics addressed in their work encompass maternal and perinatal health interventions, maternal and fetal healthcare, emergency and acute care studies, health disparities and outcomes, migration, health and trauma, as well as hermeneutics and narrative identity, and aging, elder care, and social issues.

Frequent coauthors in their research include Alexander C. Ewing, Jean Y. Ko, Elena V. Kuklina, Glen A. Satten, and David A. Goodman.

William M. Callaghan has published in a diverse set of journals, including The Lancet Regional Health - Americas, PubMed, PLoS ONE, Obstetrics and Gynecology, and Paediatric and Perinatal Epidemiology.

Notable papers authored or coauthored by Callaghan feature:

Black-White disparities in maternal vulnerability and adverse pregnancy outcomes: an ecological population study in the United States, 2014-2018 (2023) in The Lancet Regional Health - Americas
Identifying Cases of Severe Maternal Morbidity: Moving Beyond the Delivery Hospitalization (2022) in PubMed
Ranked severe maternal morbidity index for population-level surveillance at delivery hospitalization based on hospital discharge data (2023) in PLoS ONE
Maternal Mortality (2020) in Obstetrics and Gynecology
Prenatal ultrasound use and risk of autism spectrum disorder: Findings from the case-control Study to Explore Early Development (2023) in Paediatric and Perinatal Epidemiology

Best Publications

Maternal Obesity and Risk of Gestational Diabetes Mellitus

Susan Y. Chu;William M. Callaghan;Shin Y. Kim;Christopher H. Schmid

1433
Citations
Pandemic 2009 Influenza A(H1N1) Virus Illness Among Pregnant Women in the United States

Alicia M. Siston;Sonja A. Rasmussen;Margaret A. Honein;Alicia M. Fry

1214
Citations
Pregnancy-Related Mortality in the United States, 2011–2013

Andreea A. Creanga;Carla Syverson;Kristi Seed;William M. Callaghan

993
Citations
Pregnancy-related Mortality in the United States, 1998 to 2005

C.J. Berg;W.M. Callaghan;C. Syverson;Z. Henderson

895
Citations
Severe Maternal Morbidity Among Delivery and Postpartum Hospitalizations in the United States

William M. Callaghan;Andreea A. Creanga;Elena V. Kuklina

853
Citations
Trends in Postpartum Hemorrhage in High Resource Countries: A Review and Recommendations From the International Postpartum Hemorrhage Collaborative Group

Marian Knight;William M. Callaghan;Cynthia Berg;Sophie Alexander

832
Citations
Hypertensive Disorders and Severe Obstetric Morbidity in the United States

E.V. Kuklina;C. Ayala;W.M. Callaghan

787
Citations
Vital Signs : Pregnancy-Related Deaths, United States, 2011–2015, and Strategies for Prevention, 13 States, 2013–2017

Emily E. Petersen;Nicole L. Davis;David A Goodman;Shanna Cox

743
Citations
Pregnancy-related mortality in the United States, 2006-2010.

Andreea A. Creanga;Cynthia J. Berg;Carla Syverson;Kristi Seed

725
Citations
Opioid Use Disorder Documented at Delivery Hospitalization — United States, 1999–2014

Sarah C. Haight;Jean Y. Ko;Van T. Tong;Michele K. Bohm

719
Citations
The contribution of preterm birth to infant mortality rates in the United States.

William M. Callaghan;Marian F. MacDorman;Sonja A. Rasmussen;Cheng Qin

692
Citations
Racial/Ethnic Disparities in Pregnancy-Related Deaths — United States, 2007–2016

Emily E. Petersen;Nicole L. Davis;David Goodman;Shanna Cox

691
Citations
Maternal obesity and risk of cesarean delivery: a meta-analysis.

S. Y. Chu;S. Y. Kim;C. H. Schmid;P. M. Dietz

661
Citations
Trends in postpartum hemorrhage: United States, 1994-2006.

William M. Callaghan;Elena V. Kuklina;Cynthia J. Berg

646
Citations
Maternal obesity and risk of stillbirth: a metaanalysis

Susan Y. Chu;Shin Y. Kim;Joseph Lau;Christopher H. Schmid

605
Citations
Preventability of pregnancy-related deaths: results of a state-wide review.

Cynthia J. Berg;Margaret A. Harper;Samuel M. Atkinson;Elizabeth A. Bell

593
Citations
Trends in pre-pregnancy obesity in nine states, 1993-2003.

Shin Y. Kim;Patricia M. Dietz;Lucinda England;Brian Morrow

528
Citations
Infant Morbidity and Mortality Attributable to Prenatal Smoking in the U.S.

Patricia M. Dietz;Lucinda J. England;Carrie K. Shapiro-Mendoza;Van T. Tong

461
Citations
Interim Guidelines for Pregnant Women During a Zika Virus Outbreak--United States, 2016.

Emily E. Petersen;J. Erin Staples;Dana Meaney-Delman;Marc Fischer

453
Citations
Pregnancy-Related Mortality in the United States, 1991-1997

Cynthia J Berg;Jeani Chang;William M Callaghan;Sara J Whitehead

449
Citations

Frequent Co-Authors

Brian T. Bateman Stanford University

Denise J. Jamieson Emory University

Sonja A. Rasmussen Johns Hopkins University School of Medicine

Christopher H. Schmid Brown University

J. Erin Staples Centers for Disease Control and Prevention

William A. Grobman Northwestern University

K.S. Joseph University of British Columbia

Joseph Lau Chinese University of Hong Kong

Samuel F. Posner Centers for Disease Control and Prevention

Laura A. Schieve Centers for Disease Control and Prevention

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