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Highlights

  • Roe v. Wade Overturned
  • Reproductive Health Impact Study
  • Adding It Up
  • Abortion Worldwide
  • Guttmacher-Lancet Commission
  • Monthly Abortion Provision Study
  • US policy resources
  • State policy resources
  • State legislation tracker

Reports

  • Global
  • United States

Articles

  • Global research
  • US research
  • Policy analysis
  • Guttmacher Policy Review
  • Opinion

Fact Sheets

  • Global
  • United States
  • US State Laws and Policies

Data, Videos & Visualizations

  • Data center
  • Videos
  • Infographics
  • Public-use data sets

Peer-reviewed Journals

  • International Perspectives on Sexual and Reproductive Health (1975–2020)
  • Perspectives on Sexual and Reproductive Health (1969–2020)

Global

  • Abortion
  • Contraception
  • HIV & STIs
  • Pregnancy
  • Teens

US

  • Abortion
  • Contraception
  • HIV & STIs
  • Pregnancy
  • Teens

Our Work by Geography

  • Global
  • Africa
  • Asia
  • Europe
  • Latin America & the Caribbean
  • Northern America
  • Oceania

Who We Are

  • About
  • Staff
  • Board
  • Job opportunities
  • Newsletter
  • History
  • Contact
  • Conflict of Interest Policy

Media

  • Media office
  • News releases

Support Our Work

  • Make a gift today
  • Monthly Giving Circle
  • Ways to Give
  • Guttmacher Guardians
  • Guttmacher Legacy Circle
  • Financials
  • 2024 Impact Report

Awards & Scholarships

  • Darroch Award
  • Richards Scholarship
  • Bixby Fellowship
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Data Scientist

Isaac Maddow-Zimet

Portrait of Isaac Maddow-Zimet

Isaac Maddow-Zimet joined the Guttmacher Institute in 2010. He leads the Institute’s efforts to identify new approaches for leveraging, generating, integrating and visualizing data, and is the co-lead of the Research Division’s Reproducibility Core, a team devoted to improving the computational reproducibility and transparency of Guttmacher’s research. His main areas of research have included abortion measurement, estimation of pregnancy statistics in the United States, pregnancy desires, and adolescent sexual health and behavior, and he has published articles in Demography, JAMA Pediatrics, Population Research and Policy Review and the Journal of Adolescent Health, among others. He received his BA in sociology and Iberian studies from Wesleyan University, and his MS in applied statistics from New York University.

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Selected Publications

  1. May 2021 Research Article

    State-Level Variation in Abortion Stigma and Women and Men’s Abortion Underreporting in the USA

    Isaac Maddow-Zimet, Laura D. Lindberg and Kate Castle Population Research and Policy Review
  2. April 2021 Research Article

    The Impact of Abortion Underreporting on Pregnancy Data and Related Research

    Sheila Desai, Laura D. Lindberg, Isaac Maddow-Zimet and Kathryn Kost Maternal and Child Health Journal
  3. Pregnancies, Births, Abortions in US report preview image
    March 2021 Report

    Pregnancies, Births and Abortions in the United States, 1973–2017: National and State Trends by Age

    Isaac Maddow-Zimet and Kathryn Kost
  4. October 2020 Report

    Pregnancies, Births and Abortions in the United States, 1973–2016: National and State Trends by Age

    Isaac Maddow-Zimet, Kathryn Kost and Sean Finn
  5. May 2020 Research Article

    Abortion Reporting in the United States: An Assessment of Three National Fertility Surveys

    Laura D. Lindberg, Kathryn Kost, Isaac Maddow-Zimet, Sheila Desai and Mia R. Zolna Demography
  6. April 2019 Research Article

    Sex Before Age 13 Among Males in the United States

    Laura D. Lindberg, Isaac Maddow-Zimet and Arik V. Marcell Journal of the American Medical Association (JAMA)
  7. December 2018 Report

    Pregnancy Desires and Pregnancies at the State Level: Estimates for 2014

    Kathryn Kost, Isaac Maddow-Zimet and Shivani Kochhar
  8. September 2017 Report

    Pregnancies, Births and Abortions Among Adolescents and Young Women in the United States, 2013: National and State Trends by Age, Race and Ethnicity

    Kathryn Kost, Isaac Maddow-Zimet and Alex Arpaia
  9. March 2017 Report

    Access to and Quality of Menstrual Regulation and Postabortion Care in Bangladesh: Evidence from a Survey of Health Facilities, 2014

    Altaf Hossain, Isaac Maddow-Zimet, Meghan Ingerick, Hadayeat Ullah Bhuiyan, Michael Vlassoff and Susheela Singh
  10. March 2017 Research Article

    The Incidence of Menstrual Regulation Procedures and Abortion in Bangladesh, 2014

    Susheela Singh, Altaf Hossain, Isaac Maddow-Zimet, Michael Vlassoff, Hadayeat Ullah Bhuiyan and Meghan Ingerick International Perspectives on Sexual and Reproductive Health

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