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United States Women's Health Initiative Study 1991-2005

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General Info
Original or alternative title 
WHIS 1991-2005
Provider 
National Heart, Lung, and Blood Institute, National Institutes of Health (NIH)
Microdata access: Request
Geography 
United States of America (USA)
Coverage type 
Country
Time period covered 
01/1991 - 12/2005
Series or system 
United States Women’s Health Initiative (WHI)
United States Women’s Health Initiative Study (WHIS)
Data type
Survey:
  • Exam
  • Inpatient
  • Interview
Summary 

The study consisted of a set of technical trials and an observational study targeted to post-menopausal women. The clinical trials tested the effects of postmenopausal hormone therapy, diet modification, calcium and vitamin D supplements of heart disease, fractures, and breast and colorectal cancer. The observational study aimed to give reliable estimates to the extent known risk factors predicted heart disease, cancers and fractures, and to identify new risk factors. A total of 93,676 women participated on the observational study. Overall, including both the observational and clinical trials 161,808 women participated. 

Keywords 
24HR dietary recall, Breast cancer, Cohort study, Colon and rectum cancers, Heart disease, Hormone replacement therapy, Micronutrient supplements
GHDx Entry last modified on: Mar 20, 2024