About 42,000 women ages 78 to 108 remain active participants in the Women’s Health Initiative. Frazao Studio Latino/E+ via Getty Images ...

To try to help correct this imbalance, in 1991 the National Institutes of Health launched a massive, long-term study called the Women's Health Initiative, which is still running today.

Women’s Health Initiative, known for hormone therapy trials, to lose federal funding Future of landmark project, which enrolled 160,000 women and covered range of conditions, is in doubt Adobe ...

The Women's Health Initiative, begun in the 1990s, has made many important discoveries. Now funding to collect more research data will end in September.

The WHI is a decadeslong research effort on women's health. In this July 21, 2007, file photo, the US Department of Health and Human Services building is shown in Washington, D.C. Saul Loeb/AFP ...

The Conversation — Women make up more than 50% of the population, yet before the 1990s, they were largely excluded from health and medical research studies. To try to help correct this imbalance ...

A campaign backed by Kyowa Kirin, Amgen and Sanofi is calling on prominent organizations with medical websites to bring their ...

The landmark study, which enrolled more than 160,000 participants and has informed public health guidelines for women over 50, is still making tremendous contributions to women’s health.