|
|
||||||||
Articles |
OBJECTIVE: To assess the association of unopposed estrogen or estrogen plus progestin and the risk of developing endometrial cancer or dying of that disease. DATA SOURCES: A literature search of English-language studies was performed using MEDLINE, a review of bibliographies, and consultations with experts. METHODS OF STUDY SELECTION: We identified 30 studies with adequate controls and risk estimates. DATA EXTRACTION AND SYNTHESIS: Risk estimates were extracted by two authors and summarized using meta-analytic methods. The summary relative risk (RR) was 2.3 for estrogen users compared to nonusers (95% confidence interval [CI] 2.1-2.5), with a much higher RR associated with prolonged duration of use (RR 9.5 for 10 or more years). The summary RR of endometrial cancer remained elevated 5 or more years after discontinuation of unopposed estrogen therapy (RR 2.3). Interrupting estrogen for 5-7 days per month was not associated with lower risk than daily use. Users of unopposed conjugated estrogen had a greater increase in RR of developing endometrial cancer than users of synthetic estrogens. The risk for endometrial cancer death was elevated among unopposed estrogen users (RR 2.7, 95% CI 0.9-8.0). Among estrogen plus progestin users, cohort studies showed a decreased risk of endometrial cancer (RR 0.4), whereas case-control studies showed a small increase (RR 1.8). CONCLUSIONS: Endometrial cancer risk increases substantially with long duration of unopposed estrogen use, and this increased risk persists for several years after discontinuation of estrogen. Although not statistically significant, the risk of death from endometrial cancer among unopposed estrogen users is increased, similar to the increased risk of developing the disease. Data regarding risk for endometrial cancer among estrogen plus progestin users are limited and conflicting.
This article has been cited by other articles:
![]() |
B. Ettinger, P. Kenemans, S. R. Johnson, M. Mol-Arts, S. Van Os, W. Seifert, P. J.M. Verweij, and S. R. Cummings Endometrial Effects of Tibolone in Elderly, Osteoporotic Women Obstet. Gynecol., September 1, 2008; 112(3): 653 - 659. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Rees and S. Hope Use of unopposed systemic estrogen therapy in non-hysterectomized women: a population-based study in the UK Menopause Int, June 1, 2008; 14(2): 83 - 84. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. L. Deming, W. Zheng, W.-H. Xu, Q. Cai, Z. Ruan, Y.-B. Xiang, and X.-O. Shu UGT1A1 Genetic Polymorphisms, Endogenous Estrogen Exposure, Soy Food Intake, and Endometrial Cancer Risk Cancer Epidemiol. Biomarkers Prev., March 1, 2008; 17(3): 563 - 570. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. S. Saltzman, J. A. Doherty, D. A. Hill, S. A. Beresford, L. F. Voigt, C. Chen, and N. S. Weiss Diabetes and Endometrial Cancer: An Evaluation of the Modifying Effects of Other Known Risk Factors Am. J. Epidemiol., March 1, 2008; 167(5): 607 - 614. [Abstract] [Full Text] [PDF] |
||||
![]() |
G. Corrao, A. Zambon, V. Conti, F. Nicotra, C. La Vecchia, C. Fornari, G. Cesana, P. Contiero, G. Tagliabue, R. E. Nappi, et al. Menopause hormone replacement therapy and cancer risk: an Italian record linkage investigation Ann. Onc., January 1, 2008; 19(1): 150 - 155. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. R. Rebbeck, A. B. Troxel, S. Norman, G. Bunin, A. DeMichele, R. Schinnar, J. A. Berlin, and B. L. Strom Pharmacogenetic Modulation of Combined Hormone Replacement Therapy by Progesterone-Metabolism Genotypes in Postmenopausal Breast Cancer Risk Am. J. Epidemiol., December 15, 2007; 166(12): 1392 - 1399. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. V. Lacey Jr. Ovarian Cancer and Menopausal Hormone Therapy: More Data and New Questions Cancer Epidemiol. Biomarkers Prev., December 1, 2007; 16(12): 2524 - 2525. [Full Text] [PDF] |
||||
![]() |
C. M. Olsen, C. J. Bain, S. J. Jordan, C. M. Nagle, A. C. Green, D. C. Whiteman, P. M. Webb, and Australian Cancer Study (Ovarian Cancer) and Austr Recreational Physical Activity and Epithelial Ovarian Cancer: A Case-Control Study, Systematic Review, and Meta-analysis Cancer Epidemiol. Biomarkers Prev., November 1, 2007; 16(11): 2321 - 2330. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. L. Sedjo, T. Byers, E. Barrera Jr., C. Cohen, E. T. H. Fontham, L. A. Newman, C. D. Runowicz, A. G. Thorson, M. J. Thun, E. Ward, et al. A Midpoint Assessment of the American Cancer Society Challenge Goal to Decrease Cancer Incidence by 25% Between 1992 and 2015 CA Cancer J Clin, November 1, 2007; 57(6): 326 - 340. [Abstract] [Full Text] [PDF] |
||||
![]() |
E. A. Booth and B. R. Lucchesi Medroxyprogesterone acetate prevents the cardioprotective and anti-inflammatory effects of 17beta-estradiol in an in vivo model of myocardial ischemia and reperfusion Am J Physiol Heart Circ Physiol, September 1, 2007; 293(3): H1408 - H1415. [Abstract] [Full Text] [PDF] |
||||
![]() |
S.-C. Chang, J. V. Lacey Jr., L. A. Brinton, P. Hartge, K. Adams, T. Mouw, L. Carroll, A. Hollenbeck, A. Schatzkin, and M. F. Leitzmann Lifetime Weight History and Endometrial Cancer Risk by Type of Menopausal Hormone Use in the NIH-AARP Diet and Health Study Cancer Epidemiol. Biomarkers Prev., April 1, 2007; 16(4): 723 - 730. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. Grady, B. Cohen, J. Tice, M. Kristof, A. Olyaie, and G. F. Sawaya Ineffectiveness of Sertraline for Treatment of Menopausal Hot Flushes: A Randomized Controlled Trial Obstet. Gynecol., April 1, 2007; 109(4): 823 - 830. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. F. Archer, S. Hendrix, J. C. Gallagher, J. Rymer, S. Skouby, A. Ferenczy, W. den Hollander, V. Stathopoulos, F. A. Helmond, and for the Tibolone Histology of the Endometrium and Endometrial Effects of Tibolone J. Clin. Endocrinol. Metab., March 1, 2007; 92(3): 911 - 918. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Z. Steiner, M. Xiang, W. J. Mack, D. Shoupe, J. C. Felix, R. A. Lobo, and H. N. Hodis Unopposed Estradiol Therapy in Postmenopausal Women: Results From Two Randomized Trials Obstet. Gynecol., March 1, 2007; 109(3): 581 - 587. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. H. Olson, E. V. Bandera, and I. Orlow Variants in Estrogen Biosynthesis Genes, Sex Steroid Hormone Levels, and Endometrial Cancer: A HuGE Review Am. J. Epidemiol., February 1, 2007; 165(3): 235 - 245. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. Grady Management of Menopausal Symptoms N. Engl. J. Med., November 30, 2006; 355(22): 2338 - 2347. [Full Text] [PDF] |
||||
![]() |
B. L. Strom, R. Schinnar, A. L. Weber, G. Bunin, J. A. Berlin, M. Baumgarten, A. DeMichele, S. C. Rubin, M. Berlin, A. B. Troxel, et al. Case-Control Study of Postmenopausal Hormone Replacement Therapy and Endometrial Cancer Am. J. Epidemiol., October 15, 2006; 164(8): 775 - 786. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. R. Rebbeck, A. B. Troxel, Y. Wang, A. H. Walker, S. Panossian, S. Gallagher, E. G. Shatalova, R. Blanchard, G. Bunin, A. DeMichele, et al. Estrogen sulfation genes, hormone replacement therapy, and endometrial cancer risk. J Natl Cancer Inst, September 20, 2006; 98(18): 1311 - 1320. [Abstract] [Full Text] [PDF] |
||||
![]() |
W. Y. Chen, J. E. Manson, S. E. Hankinson, B. Rosner, M. D. Holmes, W. C. Willett, and G. A. Colditz Unopposed estrogen therapy and the risk of invasive breast cancer. Arch Intern Med, May 8, 2006; 166(9): 1027 - 1032. [Abstract] [Full Text] [PDF] |
||||
![]() |
F. Modugno, R. B. Ness, C. Chen, and N. S. Weiss Inflammation and Endometrial Cancer: A Hypothesis Cancer Epidemiol. Biomarkers Prev., December 1, 2005; 14(12): 2840 - 2847. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. R. Rebbeck, T. Friebel, T. Wagner, H. T. Lynch, J. E. Garber, M. B. Daly, C. Isaacs, O. I. Olopade, S. L. Neuhausen, L. van 't Veer, et al. Effect of Short-Term Hormone Replacement Therapy on Breast Cancer Risk Reduction After Bilateral Prophylactic Oophorectomy in BRCA1 and BRCA2 Mutation Carriers: The PROSE Study Group J. Clin. Oncol., November 1, 2005; 23(31): 7804 - 7810. [Abstract] [Full Text] [PDF] |
||||
![]() |
N.R.E. Hampton, M.C.P. Rees, D.G. Lowe, I. Rauramo, D. Barlow, and J. Guillebaud Levonorgestrel intrauterine system (LNG-IUS) with conjugated oral equine estrogen: a successful regimen for HRT in perimenopausal women Hum. Reprod., September 1, 2005; 20(9): 2653 - 2660. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. V. Lacey Jr., L. A. Brinton, J. H. Lubin, M. E. Sherman, A. Schatzkin, and C. Schairer Endometrial Carcinoma Risks among Menopausal Estrogen plus Progestin and Unopposed Estrogen Users in a Cohort of Postmenopausal Women Cancer Epidemiol. Biomarkers Prev., July 1, 2005; 14(7): 1724 - 1731. [Abstract] [Full Text] [PDF] |
||||
![]() |
U.S. Preventive Services Task Force* Hormone Therapy for the Prevention of Chronic Conditions in Postmenopausal Women: Recommendations from the U.S. Preventive Services Task Force Ann Intern Med, May 17, 2005; 142(10): 855 - 860. [Abstract] [Full Text] [PDF] |
||||
![]() |
F. Bray, I. dos Santos Silva, H. Moller, and E. Weiderpass Endometrial Cancer Incidence Trends in Europe: Underlying Determinants and Prospects for Prevention Cancer Epidemiol. Biomarkers Prev., May 1, 2005; 14(5): 1132 - 1142. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. R. Johnson, B. Ettinger, J. L. Macer, K. E. Ensrud, J. Quan, and D. Grady Uterine and Vaginal Effects of Unopposed Ultralow-Dose Transdermal Estradiol Obstet. Gynecol., April 1, 2005; 105(4): 779 - 787. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. D. Althuis, K. S. Moghissi, C. L. Westhoff, B. Scoccia, E. J. Lamb, J. H. Lubin, and L. A. Brinton Uterine Cancer after Use of Clomiphene Citrate to Induce Ovulation Am. J. Epidemiol., April 1, 2005; 161(7): 607 - 615. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. Grady, B. Ettinger, E. Moscarelli, L. Plouffe Jr, S. Sarkar, A. Ciaccia, and S. Cummings Safety and Adverse Effects Associated With Raloxifene: Multiple Outcomes of Raloxifene Evaluation Obstet. Gynecol., October 1, 2004; 104(4): 837 - 844. [Abstract] [Full Text] [PDF] |
||||
![]() |
Ovarian, Endometrial, and Colorectal Cancers Obstet. Gynecol., October 1, 2004; 104(4_suppl): 77S - 84S. [Full Text] [PDF] |
||||
![]() |
B. Ettinger, K. E. Ensrud, R. Wallace, K. C. Johnson, S. R. Cummings, V. Yankov, E. Vittinghoff, and D. Grady Effects of Ultralow-Dose Transdermal Estradiol on Bone Mineral Density: A Randomized Clinical Trial Obstet. Gynecol., September 1, 2004; 104(3): 443 - 451. [Abstract] [Full Text] [PDF] |
||||
![]() |
C. E. Wood, T. C. Register, M. S. Anthony, N. D. Kock, and J. M. Cline Breast and Uterine Effects of Soy Isoflavones and Conjugated Equine Estrogens in Postmenopausal Female Monkeys J. Clin. Endocrinol. Metab., July 1, 2004; 89(7): 3462 - 3468. [Abstract] [Full Text] [PDF] |
||||
![]() |
C. N. Wathen, D. S. Feig, J. W. Feightner, B. L. Abramson, and A. M. Cheung Hormone replacement therapy for the primary prevention of chronic diseases: recommendation statement from the Canadian Task Force on Preventive Health Care Can. Med. Assoc. J., May 11, 2004; 170(10): 1535 - 1537. [Full Text] [PDF] |
||||
![]() |
S. B. Hulley and D. Grady The WHI Estrogen-Alone Trial--Do Things Look Any Better? JAMA, April 14, 2004; 291(14): 1769 - 1771. [Full Text] [PDF] |
||||
![]() |
H. D. Nelson Postmenopausal Estrogen for Treatment of Hot Flashes: Clinical Applications JAMA, April 7, 2004; 291(13): 1621 - 1625. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. Armstrong, J. S. Schwartz, T. Randall, S. C. Rubin, and B. Weber Hormone Replacement Therapy and Life Expectancy After Prophylactic Oophorectomy in Women With BRCA1/2 Mutations: A Decision Analysis J. Clin. Oncol., March 15, 2004; 22(6): 1045 - 1054. [Abstract] [Full Text] [PDF] |
||||
![]() |
H. Nakamura, T. Kimura, H. Ikegami, K. Ogita, S. Koyama, K. Shimoya, T. Tsujie, M. Koyama, Y. Kaneda, and Y. Murata Highly efficient and minimally invasive in-vivo gene transfer to the mouse uterus using haemagglutinating virus of Japan (HVJ) envelope vector Mol. Hum. Reprod., October 1, 2003; 9(10): 603 - 609. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. Baselga, A. Llombart-Cussac, M. Bellet, V. Guillem-Porta, N. Enas, K. Krejcy, E. Carrasco, L. Kayitalire, M. Kuta, A. Lluch, et al. Randomized, double-blind, multicenter trial comparing two doses of arzoxifene (LY353381) in hormone-sensitive advanced or metastatic breast cancer patients Ann. Onc., September 1, 2003; 14(9): 1383 - 1390. [Abstract] [Full Text] [PDF] |
||||
![]() |
C. I. Li, K. E. Malone, P. L. Porter, N. S. Weiss, M.-T. C. Tang, K. L. Cushing-Haugen, and J. R. Daling Relationship Between Long Durations and Different Regimens of Hormone Therapy and Risk of Breast Cancer JAMA, June 25, 2003; 289(24): 3254 - 3263. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. Deng, G. L. Shipley, D. S. Loose-Mitchell, G. M. Stancel, R. Broaddus, J. H. Pickar, and P. J. A. Davies Coordinate Regulation of the Production and Signaling of Retinoic Acid by Estrogen in the Human Endometrium J. Clin. Endocrinol. Metab., May 1, 2003; 88(5): 2157 - 2163. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Yasui, S. Matsui, Y.R.S. Laxmi, N. Suzuki, S. Y. Kim, S. Shibutani, and T. Matsuda Mutagenic events induced by 4-hydroxyequilin in supF shuttle vector plasmid propagated in human cells Carcinogenesis, May 1, 2003; 24(5): 911 - 917. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. H. Humphries and S. Gill Risks and benefits of hormone replacement therapy: The evidence speaks Can. Med. Assoc. J., April 15, 2003; 168(8): 1001 - 1010. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. L. Riggs and L. C. Hartmann Selective Estrogen-Receptor Modulators -- Mechanisms of Action and Application to Clinical Practice N. Engl. J. Med., February 13, 2003; 348(7): 618 - 629. [Full Text] [PDF] |
||||
![]() |
J. Rymer, R. Wilson, and K. Ballard Making decisions about hormone replacement therapy BMJ, February 8, 2003; 326(7384): 322 - 326. [Full Text] [PDF] |
||||
![]() |
R. Kaaks, A. Lukanova, and M. S. Kurzer Obesity, Endogenous Hormones, and Endometrial Cancer Risk: A Synthetic Review Cancer Epidemiol. Biomarkers Prev., December 1, 2002; 11(12): 1531 - 1543. [Abstract] [Full Text] [PDF] |
||||
![]() |
U.S. Preventive Services Task Force* Postmenopausal Hormone Replacement Therapy for Primary Prevention of Chronic Conditions: Recommendations and Rationale Ann Intern Med, November 19, 2002; 137(10): 834 - 839. [Abstract] [Full Text] [PDF] |
||||
![]() |
N Kazerouni, C Schairer, H B Friedman, J V Lacey Jr, and M H Greene Family history of breast cancer as a determinant of the risk of developing endometrial cancer: a nationwide cohort study J. Med. Genet., November 1, 2002; 39(11): 826 - 832. [Full Text] [PDF] |
||||
![]() |
H. D. Nelson, L. L. Humphrey, P. Nygren, S. M. Teutsch, and J. D. Allan Postmenopausal Hormone Replacement Therapy: Scientific Review JAMA, August 21, 2002; 288(7): 872 - 881. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. L. Noller Estrogen Replacement Therapy and Risk of Ovarian Cancer JAMA, July 17, 2002; 288(3): 368 - 369. [Full Text] [PDF] |
||||
![]() |
S. Hulley, C. Furberg, E. Barrett-Connor, J. Cauley, D. Grady, W. Haskell, R. Knopp, M. Lowery, S. Satterfield, H. Schrott, et al. Noncardiovascular Disease Outcomes During 6.8 Years of Hormone Therapy: Heart and Estrogen/Progestin Replacement Study Follow-up (HERS II) JAMA, July 3, 2002; 288(1): 58 - 64. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. Zhao, Q. Chen, and R. D. Brinton Neuroprotective and Neurotrophic Efficacy of Phytoestrogens in Cultured Hippocampal Neurons Experimental Biology and Medicine, July 1, 2002; 227(7): 509 - 519. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. L. Wickerham, B. Fisher, N. Wolmark, J. Bryant, J. Costantino, L. Bernstein, and C. D. Runowicz Association of Tamoxifen and Uterine Sarcoma J. Clin. Oncol., June 1, 2002; 20(11): 2758 - 2760. [Full Text] [PDF] |
||||
![]() |
D. Grady A 60-Year-Old Woman Trying to Discontinue Hormone Replacement Therapy JAMA, April 24, 2002; 287(16): 2130 - 2137. [Full Text] [PDF] |
||||
![]() |
M. A. Hlatky, D. Boothroyd, E. Vittinghoff, P. Sharp, M. A. Whooley, and for the HERS Research Group Quality-of-Life and Depressive Symptoms in Postmenopausal Women After Receiving Hormone Therapy: Results From the Heart and Estrogen/Progestin Replacement Study (HERS) Trial JAMA, February 6, 2002; 287(5): 591 - 597. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. E. McNagny, N. K. Wenger, N. Hilmy, S. Banarer, M. Barton, R. K. Dubey, S. R. Davis, J. E. Manson, and K. A. Martin Postmenopausal Hormone-Replacement Therapy N. Engl. J. Med., January 3, 2002; 346(1): 63 - 65. [Full Text] [PDF] |
||||
![]() |
G. E. Hale, C. L. Hughes, and J. M. Cline Endometrial Cancer: Hormonal Factors, the Perimenopausal ""Window of Risk,"" and Isoflavones J. Clin. Endocrinol. Metab., January 1, 2002; 87(1): 3 - 15. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. E. Burdette, J. Liu, D. Lantvit, E. Lim, N. Booth, K. P. L. Bhat, S. Hedayat, R. B. Van Breemen, A. I. Constantinou, J. M. Pezzuto, et al. Trifolium pratense (Red Clover) Exhibits Estrogenic Effects In Vivo in Ovariectomized Sprague-Dawley Rats J. Nutr., January 1, 2002; 132(1): 27 - 30. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. E. Manson and K. A. Martin Postmenopausal Hormone-Replacement Therapy N. Engl. J. Med., July 5, 2001; 345(1): 34 - 40. [Full Text] [PDF] |
||||
![]() |
E. Barrett-Connor and C. A Stuenkel Hormone replacement therapy (HRT)-- risks and benefits Int. J. Epidemiol., June 1, 2001; 30(3): 423 - 426. [Full Text] [PDF] |
||||
![]() |
K M Feeley and M Wells Hormone replacement therapy and the endometrium J. Clin. Pathol., June 1, 2001; 54(6): 435 - 440. [Abstract] [Full Text] [PDF] |
||||
![]() |
P. A. Newcomb, A. Trentham-Dietz, K. M. Egan, L. Titus-Ernstoff, J. A. Baron, B. E. Storer, W. C. Willett, and M. J. Stampfer Fracture History and Risk of Breast and Endometrial Cancer Am. J. Epidemiol., June 1, 2001; 153(11): 1071 - 1078. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. G. Glazier and M. A. Bowman A Review of the Evidence for the Use of Phytoestrogens as a Replacement for Traditional Estrogen Replacement Therapy Arch Intern Med, May 14, 2001; 161(9): 1161 - 1172. [Abstract] [Full Text] [PDF] |
||||
![]() |
|