Journal
EUROPEAN HEART JOURNAL
Volume 42, Issue 32, Pages 3049-3059Publisher
OXFORD UNIV PRESS
DOI: 10.1093/eurheartj/ehab325
Keywords
Heart failure; Cancer; Cardio-oncolo; Statin; Prevention
Categories
Funding
- Sanming Project of Medicine in Shenzhen, China [SZSM201911020]
- HKU-SZH Fund for Shenzhen Key Medical Discipline
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This study suggests that statin use is associated with a significantly lower risk of incident cancer and cancer-related mortality in patients with heart failure, and this association appears to be duration dependent.
Aims Patients with heart failure (HF) have an increased risk of incident cancer. Data relating to the association of statin use with cancer risk and cancer-related mortality among patients with HF are sparse. Methods and results Using a previously validated territory-wide clinical information registry, statin use was ascertained among all eligible patients with HF (n = 87 102) from 2003 to 2015. Inverse probability of treatment weighting was used to balance baseline covariates between statin nonusers (n = 50 926) with statin users (n = 36 176). Competing risk regression with Cox proportional-hazard models was performed to estimate the risk of cancer and cancer-related mortality associated with statin use. Of all eligible subjects, the mean age was 76.5 +/- 12.8 years, and 47.8% was male. Over a median follow-up of 4.1 years (interquartile range: 1.6-6.8), 11 052 (12.7%) were diagnosed with cancer. Statin use (vs. none) was associated with a 16% lower risk of cancer incidence [multivariable adjusted subdistribution hazard ratio (SHR) = 0.84; 95% confidence interval (CI), 0.80-0.89]. This inverse association with risk of cancer was duration dependent; as compared with short-term statin use (3 months to <2 years), the adjusted SHR was 0.99 (95% CI, 0.87-1.13) for 2 to <4 years of use, 0.82 (95% CI, 0.70-0.97) for 4 to <6 years of use, and 0.78 (95% CI, 0.65-0.93) for >= 6 years of use. Ten-year cancer-related mortality was 3.8% among statin users and 5.2% among nonusers (absolute risk difference, -1.4 percentage points [95% CI, -1.6% to -1.2%]; adjusted SHR= 0.74; 95% CI, 0.67-0.81). Conclusion Our study suggests that statin use is associated with a significantly lower risk of incident cancer and cancer-related mortality in HF, an association that appears to be duration dependent. [GRAPHICS] .
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