World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
86
Citations
31813
World Ranking
13976
National Ranking
7092

William M. Callaghan publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where William M. Callaghan sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 610 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 173 publications — 1st percentile

1% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

William M. Callaghan D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where William M. Callaghan sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 399 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 86 D-Index — 31st percentile

31% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

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

  • 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

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

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

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

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

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

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

  • 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

  • Hypertensive Disorders and Severe Obstetric Morbidity in the United States

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

  • 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

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

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

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

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

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

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

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

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

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

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

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

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

  • Maternal obesity and risk of stillbirth: a metaanalysis

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

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

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

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

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

  • 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

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

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

  • Pregnancy-Related Mortality in the United States, 1991-1997

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

Frequent Co-Authors

Brian T. Bateman
Brian T. Bateman Stanford University
Denise J. Jamieson
Denise J. Jamieson Emory University
Sonja A. Rasmussen
Sonja A. Rasmussen Johns Hopkins University School of Medicine
Christopher H. Schmid
Christopher H. Schmid Brown University
J. Erin Staples
J. Erin Staples Centers for Disease Control and Prevention
William A. Grobman
William A. Grobman Northwestern University
K.S. Joseph
K.S. Joseph University of British Columbia
Joseph Lau
Joseph Lau Chinese University of Hong Kong
Samuel F. Posner
Samuel F. Posner Centers for Disease Control and Prevention
Laura A. Schieve
Laura A. Schieve Centers for Disease Control and Prevention

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