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Benign gynecologic conditions among participants in the Breast Cancer Prevention Trial.

Abstract：

OBJECTIVE:This study was undertaken to report on the benign gynecologic conditions occurring among women with an intact uterus at enrollment in the Breast Cancer Prevention Trial of the National Surgical Adjuvant Breast and Bowel Project. STUDY DESIGN:The incidence rates of several benign gynecologic conditions were determined and risks were compared among women receiving tamoxifen and those receiving placebo, based on risk ratios (RRs) with 95% CIs. Comparisons included stratification by menopausal status, body mass index, and history of estrogen use. RESULTS:Compared with women taking placebo, premenopausal women taking tamoxifen had a greater incidence of endometrial polyps (RR = 1.9, 95% CI = 1.55-2.41), leiomyomas (RR = 1.3, 95% CI = 1.14-1.55), endometriosis (RR = 1.9, 95% CI = 1.35-2.70), ovarian cysts (RR = 1.5, 95% CI = 1.20-1.78), and gynecologic surgical procedures, including hysterectomy (RR = 1.6, 95% CI = 1.29-1.88). Postmenopausal women taking tamoxifen also had an increased incidence of endometrial polyps (RR = 2.4, 95% CI = 1.76-3.24), leiomyomas (RR = 1.4, 95% CI = 1.04-1.80), endometriosis (RR = 1.9, 95% CI = 1.29-5.58), and gynecologic surgical procedures, including hysterectomy (RR = 2.2, 95% CI = 1.60-3.13), compared with women taking placebo. All women taking tamoxifen also had an increased incidence of simple endometrial hyperplasia without atypia (overall RR = 2.06, 95% CI = 1.64-2.60) compared with those taking placebo. CONCLUSIONS:Our results strongly support the estrogen agonist role of tamoxifen as the causative factor for the increased risk of endometrial polyps, leiomyomas, endometriosis, and endometrial hyperplasia among women taking this agent.

journal_name

Am J Obstet Gynecol

journal_title

American journal of obstetrics and gynecology

authors

Chalas E,Costantino JP,Wickerham DL,Wolmark N,Lewis GC,Bergman C,Runowicz CD

doi

10.1016/j.ajog.2004.12.083

subject

Has Abstract

pub_date

2005-04-01 00:00:00

pages

1230-7; discussion 1237-9

issue

4

eissn

0002-9378

issn

1097-6868

pii

S0002937805000591

journal_volume

192

pub_type

临床试验,杂志文章

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