Long-term statin use and risk of ductal and lobular breast cancer among women 55-74

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Long-term statin use and risk of ductal and lobular breast cancer among women 55-74


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Old 08-13-2013, 12:34   #1
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Default Long-term statin use and risk of ductal and lobular breast cancer among women 55-74

Long-term statin use and ri... [Cancer Epidemiol Biomarkers Prev. 2013] - PubMed - NCBI

Abstract

Background: Mechanistic studies largely support the chemopreventive potential of statins. However, results of epidemiologic studies investigating statin use and breast cancer risk have been inconsistent and lacked the ability to evaluate long-term statin use. Methods: We utilized data from a population-based case-control study of breast cancer conducted in the Seattle-Puget Sound region to investigate the relationship between long-term statin use and breast cancer risk. 916 invasive ductal carcinoma (IDC) and 1,068 invasive lobular carcinoma (ILC) cases 55-74 years of age diagnosed between 2000 and 2008 were compared to 902 control women. All participants were interviewed in-person and data on hypercholesterolemia and all episodes of lipid lowering medication use were collected through a structured questionnaire. We assessed the relationship between statin use and IDC and ILC risk using polytomous logistic regression. Results: Current users of statins for 10 years or longer had a 1.83-fold increased risk of IDC [95% confidence interval (CI): 1.14-2.93] and a 1.97-fold increased risk of ILC (95% CI: 1.25-3.12) compared to never users of statins. Among women diagnosed with hypercholesterolemia, current users of statins for 10 years or longer had more than double the risk of both IDC [odds ratio (OR): 2.04, 95% CI: 1.17-3.57] and ILC (OR: 2.43, 95% CI: 1.40-4.21) compared to never users. Conclusion: In this contemporary population-based case-control study long-term use of statins was associated with increased risks of both IDC and ILC. Impact: Additional studies with similarly high frequencies of statin use for various durations are needed to confirm this novel finding.

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Old 08-13-2013, 13:11   #2
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Reminds me to restate something I said to my internist a few years back: somehow it is worse to die from something iatrogenic (medicine-caused), than to die from something natural but neglected.

DOUBLE the risk of IDC? No, thanks.

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Old 08-13-2013, 13:16   #3
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Holy cow!

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