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Cardiotoxicity of Use of Sequential Aromatase Inhibitors in Women With Breast Cancer
AbstractThe association between use of aromatase inhibitors (AIs) and cardiovascular outcomes is controversial. While some observational studies have assessed the cardiovascular safety of AIs as upfront treatments, their cardiotoxicity as sequential treatments with tamoxifen remains unknown. Thus, we conducted a population-based cohort study using data from the United Kingdom Clinical Practice Research Datalink linked to the Hospital Episode Statistics and Office for National Statistics databases. We employed a prevalent new-user design to propensity-score match, in a 1:2 ratio, patients switching from tamoxifen to AIs wit...
Source: American Journal of Epidemiology - April 27, 2020 Category: Epidemiology Source Type: research

The Associations of Atrial Fibrillation With the Risks of Incident Invasive Breast and Colorectal Cancer
<span class="paragraphSection"><div class="boxTitle">Abstract</div>Atrial fibrillation (AF) is a common arrhythmia that poses a significant risk of stroke. Cross-sectional and case-control studies have shown evidence of associations between AF and breast or colorectal cancer, but there have been no longitudinal studies in which this has been assessed. We prospectively examined a cohort of 93,676 postmenopausal women enrolled in the Women's Health Initiative from 1994 to 1998 to determine whether there are relationships between baseline AF and the development of invasive breast or colorectal cancer. The pr...
Source: American Journal of Epidemiology - February 7, 2017 Category: Epidemiology Source Type: research