Use of blood-pressure-lowering medication and risk of prostate cancer in the Cancer Prevention Study II Nutrition Cohort |
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Authors: | Carmen Rodriguez Eric J Jacobs Anusila Deka Alpa V Patel Elizabeth B Bain Michael J Thun Eugenia E Calle |
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Institution: | (1) Epidemiology and Surveillance Research, American Cancer Society, 250 Williams Street, Atlanta, GA 30303, USA |
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Abstract: | Objectives To examine the association between use of anti-hypertensive drugs and prostate cancer incidence among 48,389 men in the Cancer
Prevention Study II Nutrition Cohort.
Methods Proportional hazards models were used to calculate rate ratios (RR) for use of Beta-Blockers (BBs), Calcium Channel Blockers (CCBs), and ACE Inhibitors (ACE) and incident prostate cancer in
time-dependent analyses.
Results During follow-up from 1997 to 2005, we identified 3,031 cases of incident prostate cancer. Anti-hypertensive use was associated
with slightly decreased risk of all (RR = 0.90, 95% CI 0.83–0.98) and organ-confined low-grade prostate cancer (RR = 0.89, 95% CI 0.81–0.99), but was not statistically significantly associated with aggressive-fatal prostate cancer (RR = 0.93, 95% CI 0.79–1.10). BB and ACE inhibitor treatment was associated with an approximately 10% lower risk for all prostate
cancer in models adjusted for age and race. These associations were attenuated and lost statistical significance when adjusted
for history of heart disease. No trend with duration of use was detected.
Conclusions These results do not support the hypothesis that anti-hypertensive medication is strongly associated with risk of prostate
cancer. Confounding by concurrent illness may explain inverse associations seen in other studies. |
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Keywords: | Prostate cancer Hypertension Anti-hypertensive medication |
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