Diana Greene Foster

Diana Greene Foster (born 1971) is an American demographer and professor of obstetrics, gynaecology and reproductive sciences at the University of California, San Francisco. She uses quantitative models to understand how reproductive health policies impact women's lives and to evaluate the effectiveness of family planning policies.

Early life and education
Foster was an undergraduate student at University of California, Berkeley. After graduating from Berkeley with a BS in 1992, she moved to Princeton University for graduate studies, where she investigated contraceptive use in Sub-Saharan Africa, receiving her MA and PhD from Princeton.

Research and career
Foster is a demographer who uses quantitative models to understand the impact of family planning policies. She led the Turnaway Study, a longitudinal investigation that evaluated the health of women who seek abortion. The Turnaway Study involved 1,000 women, some of whom were denied an abortion because they were beyond the gestational limit of their local clinic. She found that women who received abortions experienced less chronic pain and better health outcomes than those who were denied abortion. She used credit studies to demonstrate that women who had been denied an abortion suffered financially for years. She investigated the impact of California Family PACT (Planning, Access, Care, and Treatment), and showed that the long term provision of contraception reduced the amount of unintended pregnancy.

After the Supreme Court of the United States decided to overturn Roe v. Wade, Foster started investigating how people navigated the complex array of family planning provision in the United States.

Awards and honors

 * 2021 Harriet B. Presser Award
 * 2022 Nature's 10
 * 2023 MacArthur Fellows Program