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Evidence-Based Medicine 2008;13:142; doi:10.1136/ebm.13.5.142
Copyright © 2008 by the BMJ Publishing Group Ltd.

THERAPEUTICS

Risk of cancer was still increased over 2 years after stopping hormone therapy

The first 150 words of the full text of this article appear below.

G Heiss

Dr G Heiss, University of North Carolina School of Public Health, Chapel Hill, NC, USA; gerardo_heiss@unc.edu


STUDY DESIGN

Design:

randomised placebo-controlled trial (Women’s Health Initiative [WHI] trial).

Allocation concealment:

{concealed}*.{dagger}

Blinding:

blinded (participants, clinicians, {data collectors, outcome assessors, and safety committee}*).{dagger}


STUDY QUESTION

Setting:

40 clinical centres in the USA.

Patients:

16 608 postmenopausal women 50–79 years of age with an intact uterus. 15 730 women (mean age 63 y) were included in the postintervention phase.

Intervention:

Conjugated equine oestrogen (CEO), 0.625 mg/day, plus medroxyprogesterone acetate (MPA), 2.5 mg/day (n = 8052), or placebo (n = 7678).

Outcomes:

included all-cause mortality; cardiovascular (CV) events (coronary heart disease [CHD], revascularisation, stroke, and thromboembolism); cancer (invasive breast, endometrial, colorectal, and all); fractures; and a global index.

Follow-up period:

mean 2.4 years after stopping therapy.

Patient follow-up:

95% (intention-to-treat analysis).


MAIN RESULTS

During the postintervention phase, the CEO plus MPA group had higher risk of all cancers than the placebo group (table). Groups did not differ for all-cause mortality, . . . [Full text of this article]

Angela M Cheung

University of Toronto, Toronto, Ontario, Canada


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