Endometrial cancer associated with various forms of postmenopausal hormone therapy: A case control study
Open Access
- 12 November 2010
- journal article
- research article
- Published by Wiley in International Journal of Cancer
- Vol. 128 (7), 1644-1651
- https://doi.org/10.1002/ijc.25762
Abstract
This study evaluates the effect of different modes of estradiol-progestagen therapy (EPT) regimens on the postmenopausal endometrial cancer risk in Finland. Women diagnosed with endometrial cancer in 1995–2007 at the age of 50–80 years were identified from the Finnish Cancer Registry (N = 7,261). For each case, three age-matched controls were retrieved from the Finnish Population Register. The use of EPT since 1994 was ascertained from the national Medical Reimbursement Register. Odds ratios (ORs) for different EPT regimens were calculated with conditional logistic regression analysis, adjusted for parity and ages at the deliveries. For use of 10 years, the risk for endometrial cancer was elevated for both users of long-cycle EPT (2.95; 2.40–3.62) and sequential EPT (1.38; 1.15–1.66). Norethisterone acetate and medroxyprogesterone acetate as parts of EPT did not differ in their endometrial cancer risk. The use of tibolone showed no endometrial risk. The use of sequential and long-cycle EPT is associated with an increased risk of endometrial cancer, whereas the use of continuous EPT or estradiol plus LNG-IUS shows a decreased risk.Keywords
This publication has 37 references indexed in Scilit:
- Endometrial Cancer in Postmenopausal Women Using Estradiol–Progestin TherapyObstetrics & Gynecology, 2009
- A case‐control study on hormone therapy as a risk factor for breast cancer in Finland: Intrauterine system carries a risk as wellInternational Journal of Cancer, 2009
- Endometrial Effects of Tibolone in Elderly, Osteoporotic WomenObstetrics & Gynecology, 2008
- Tibolone histology of the endometrium and breast endpoints study: design of the trial and endometrial histology at baseline in postmenopausal womenFertility and Sterility, 2007
- Endometrial cancer and menopausal hormone therapy in the National Institutes of Health-AARP Diet and Health Study cohortCancer, 2007
- Endometrial safety and bleeding with HRT: what's new?Climacteric, 2007
- Effects of Tibolone and Continuous Combined Conjugated Equine Estrogen/Medroxyprogesterone Acetate on the Endometrium and Vaginal Bleeding: Results of the OPAL StudyAmerican Journal of Obstetrics and Gynecology, 2006
- Risk Factors for the Incidence of Endometrial Cancer according to the Aggressiveness of DiseaseAmerican Journal of Epidemiology, 2006
- Dose of progestin in postmenopausal-combined hormone therapy and risk of endometrial cancerAmerican Journal of Obstetrics and Gynecology, 2004
- Hormone replacement therapy in postmenopausal women: endometrial hyperplasia and irregular bleedingPublished by Wiley ,1999