The Women's Health Initiative: A Landmark Resource for Skeletal Research Since 1992

Area of Science:

• Gerontology
• Epidemiology
• Public Health

Background:

• The Women's Health Initiative (WHI) is a major longitudinal study focused on preventing chronic diseases in postmenopausal women.
• It encompasses clinical trials on hormone therapy, diet modification, and calcium/vitamin D supplementation, alongside an observational study.

Purpose of the Study:

• To investigate strategies for preventing and controlling common chronic diseases in postmenopausal women.
• To collect comprehensive data on risk factors for fractures and other health outcomes.

Main Methods:

• Recruited over 160,000 women across 40 US clinical centers from 1993 to 1998.
• Utilized three overlapping clinical trials and an observational study design.
• Collected extensive baseline and follow-up data on risk factors, comorbidities, and health outcomes, including bone mineral density measurements.

Main Results:

• The WHI enrolled a diverse population, including a significant number of underrepresented minority women.
• Detailed data on risk factors for fractures, cardiovascular disease, and cancer were collected over extended follow-up periods.
• Bone mineral density was measured in a subset of participants to enhance fracture risk assessment.

Conclusions:

• The WHI provides a valuable, publicly accessible dataset for researchers studying women's health.
• The study's long-term follow-up facilitates understanding of chronic disease development and prevention strategies.
• Encourages external investigators to utilize WHI data and biobank specimens for further scientific inquiry.