## Abstract Elevated blood pressure has been proposed to be a risk factor for breast cancer but the results remain controversial. In this study, the incidence of breast cancer among 9,112 postmenopausal, hypertensive women included in the communityβbased hypertension register of the North Karelia p
Incidence of breast cancer in women with fibroadenoma
β Scribed by Fabio Levi; Lalao Randimrison; Van-Cong Te; Carlo la Vecchia
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- French
- Weight
- 363 KB
- Volume
- 57
- Category
- Article
- ISSN
- 0020-7136
No coin nor oath required. For personal study only.
β¦ Synopsis
There is a general agreement that fibroadenoma is associated with a certain increase in breast cancer risk, but the risk estimates appear heterogeneous according to various studies. To provide further quantitative and population-based estimates of breast cancer risk in women with histologically confirmed fibroadenomas, we linked data of 1.461 incident cases of fibroadenoma (median age, 37 years) to the Cancer Registry of the Swiss Canton of Vaud (about 600,000 inhabitants) over the period 1977-1991. After exclusion of 57 synchronous breast neoplasms, a total of I 7 cases of breast cancer were observed vs. 10.9 expected (standardised incidence ratio, SIR, I .6; 90% confidence interval: I. 1-2. I). The SIR was similar in the short term (3-5 years) and in the medium-long term (>5 years) following diagnosis of fibroadenoma. The cumulative risk of invasive breast cancer was 0.7% after 5 years and 2.2% after I 2 years following diagnosis of fibroadenoma. This is not negligible on account of the young age of our cohort.
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