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Womens Health Initiative (WHI) memory study
4532 women, age > 65
Testing with mini mental status exam (MMSE) annually
Treatment group
- Conjugated estrogens 0.625 mg QD
- medroxyprogesterone 2.5 mg QD
vs placebo.
Study stopped prematurely in 2002 because risks outweighed benefit.
Results:
1) 6.7% vs 4.8% declined > 2 standard deviations on MMSE
2) 31% increase in ischemic stroke (another arm of study)
General
clinical trial
References
- Prescriber's Letter 10(6):33 2003
- Journal Watch 23(13):101, 2003
- Shumaker SA et al, JAMA 289: 2651, 2003
- Rapp SR et al, JAMA 289:2663, 2003
- Wassertheil-Smoller S et al, JAMA 289:2673, 2003
- Yaffe K, JAMA 289:2717, 2003