DoubleChecks

What was claimed

A national cohort study of 28 million people shows that if you got the COVID shots, your risk of death from accidents and pretty much every other cause goes down by nearly 25%

Our verdict

Inaccurate

The main study summary says vaccinated people had no increased long-term mortality and that mortality was lower across causes, but it does not support a claim that accidents and nearly every other cause specifically dropped because of vaccination. That wording goes beyond what the sources report and implies a causal effect the study did not establish. The study reports a 25% lower all-cause mortality association, with a weighted hazard ratio of 0.75. But this is an observational association, not proof that the shots caused the reduction. (Only 1 of 3 AI systems responded.)

1 AI system responded29 sources citedChecked Sep 22, 2026

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Key findings

The study shows that COVID shots lower the risk of death from accidents and pretty much every other cause.

Incorrect97%
1 AI checked

The study shows that COVID shots lower the risk of death by nearly 25%.

Misleading93%
1 AI checked

A national cohort study of 28 million people exists.

Verified99%
1 AI checked

Verified against 29 sources

pmc.ncbi.nlm.nih.govouci.dntb.gov.uascribd.comepi-phare.frhstoday.usbstquarterly.comcidrap.umn.eduuspharmacist.comsciencedirect.comlinkedin.comthehill.comgavi.orgeuronews.comreddit.comnamd.orgidse.netlemonde.frresearch.ed.ac.ukmedicaldialogues.insciencedaily.comsciencedaily.commedscape.comnews-medical.netscience.thewire.inwsws.orgsciencedaily.comnews-medical.netseekingalpha.comcidrap.umn.edu

Detailed Analysis

The first part of the claim is partly based on a real national cohort study of 28 million people, but the study found no increase in 4-year all-cause mortality, not a blanket proof that vaccination lowers death risk from accidents and nearly every other cause. The statement overgeneralizes a 25% lower all-cause mortality association into a causal claim about specific causes of death, which is not supported by the cited sources.

Why this verdict

  • The first part of the claim is partly based on a real national cohort study of 28 million people, but the study found no increase in 4-year all-cause mortality, not a blanket proof that vaccination lowers death risk from accidents and nearly every other cause.
  • The statement overgeneralizes a 25% lower all-cause mortality association into a causal claim about specific causes of death, which is not supported by the cited sources.

Claims checked

The study shows that COVID shots lower the risk of death from accidents and pretty much every other cause.

Incorrect97%
The main study summary says vaccinated people had no increased long-term mortality and that mortality was lower across causes, but it does not support a claim that accidents and nearly every other cause specifically dropped because of vaccination. That wording goes beyond what the sources report and implies a causal effect the study did not establish.

This claim may mislead readers without added context.

The study shows that COVID shots lower the risk of death by nearly 25%.

Misleading93%
The study reports a 25% lower all-cause mortality association, with a weighted hazard ratio of 0.75. But this is an observational association, not proof that the shots caused the reduction.

This claim may mislead readers without added context.

A national cohort study of 28 million people exists.

Verified99%
The cited study and multiple summaries describe a French national cohort of 28 million individuals. The study was published in JAMA Network Open and is clearly described as a nationwide cohort.

What other AI think

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