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All-Cause Mortality and Cardiovascular Death between Statins and Omega-3 Supplementation: A Meta-Analysis and Network Meta-Analysis from 55 Randomized Controlled Trials.

Abstract：

:Statins and omega-3 supplementation have shown potential benefits in preventing cardiovascular disease (CVD), but their comparative effects on mortality outcomes, in addition to primary and secondary prevention and mixed population, have not been investigated. This study aimed to examine the effect of statins and omega-3 supplementation and indirectly compare the effects of statin use and omega-3 fatty acids on all-cause mortality and CVD death. We included randomized controlled trials (RCTs) from meta-analyses published until December 2019. Pooled relative risks (RRs) and 95% confidence intervals (CIs) were calculated to indirectly compare the effect of statin use versus omega-3 supplementation in a frequentist network meta-analysis. In total, 55 RCTs were included in the final analysis. Compared with placebo, statins were significantly associated with a decreased the risk of all-cause mortality (RR = 0.90, 95% CI = 0.86-0.94) and CVD death (RR = 0.86, 95% CI = 0.80-0.92), while omega-3 supplementation showed a borderline effect on all-cause mortality (RR = 0.97, 95% CI = 0.94-1.01) but were significantly associated with a reduced risk of CVD death (RR = 0.92, 95% CI = 0.87-0.98) in the meta-analysis. The network meta-analysis found that all-cause mortality was significantly different between statin use and omega-3 supplementation for overall population (RR = 0.91, 95% CI = 0.85-0.98), but borderline for primary prevention and mixed population and nonsignificant for secondary prevention. Furthermore, there were borderline differences between statin use and omega-3 supplementation in CVD death in the total population (RR = 0.92, 95% CI = 0.82-1.04) and primary prevention (RR = 0.85, 95% CI = 0.68-1.05), but nonsignificant differences in secondary prevention (RR = 0.97, 95% CI = 0.66-1.43) and mixed population (RR = 0.92, 95% CI = 0.75-1.14). To summarize, statin use might be associated with a lower risk of all-cause mortality than omega-3 supplementation. Future direct comparisons between statin use and omega-3 supplementation are required to confirm the findings.

journal_name

Nutrients

journal_title

Nutrients

authors

Kim J,Hoang T,Kim JM,Bu SY,Choi JH,Park E,Lee SM,Park E,Min JY,Lee IS,Youn SY,Yeon JY

doi

10.3390/nu12103203

subject

Has Abstract

pub_date

2020-10-20 00:00:00

issue

issn

2072-6643

pii

nu12103203

journal_volume

pub_type

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All-Cause Mortality and Cardiovascular Death between Statins and Omega-3 Supplementation: A Meta-Analysis and Network Meta-Analysis from 55 Randomized Controlled Trials.