Statistically significant lower risk is seen for mortality and progression. 28 studies from 26 independent teams in 11 countries show significant improvements.
Meta analysis using the most serious outcome reported shows 9% [3‑15%] lower risk. Early treatment is more effective than late treatment.
Studies to date do not show a significant benefit for mechanical ventilation and ICU admission. Benefit may be more likely without coadministered anticoagulants. The RECOVERY RCT shows 4% [-4‑11%] lower mortality for all patients, however when restricting to non-LMWH patients there was 17% [-4‑34%] improvement, comparable with the mortality results of all studies, 10% [4‑16%], and the 16% improvement in the REMAP-CAP RCT.
No treatment or intervention is 100% effective. All practical, effective, and safe means should be used based on risk/benefit analysis. Multiple treatments are typically used in combination, and other treatments are significantly more effective.
All data to reproduce this paper and sources are in the appendix. 4 other meta analyses show significant improvements with aspirin for mortality1-3, mechanical ventilation1, and progression4.
4 meta analyses show significant improvements with aspirin for mortality
1-3,
mechanical ventilation
1, and
progression
4.
Covid Analysis et al., Nov 2024, preprint, 1 author.