Jean‐Marie Robine · The Journals of Gerontology Series A 2019 · case study and demographic modeling · n=1

The Real Facts Supporting Jeanne Calment as the Oldest Ever Human

Cited 66 times in the scientific literature.

Level 4 - case-series / case-control

Single-case historical and demographic validation study (graded by design analogy, not clinical CEBM)

OpenAlex W2973489515 · doi:10.1093/gerona/glz198 · record verified 2026-08-27

What was done

The authors re-examined the original demographic and historical validation records of Jeanne Calment alongside new documentary evidence to investigate claims of identity fraud (swapping identities with her daughter, Yvonne Billot-Calment, in 1934). They also evaluated mathematical and statistical models assessing the plausibility of a human reaching 122 years of age.

What was found

The abstract reports no specific numerical demographic statistics or model parameters. The authors found that claims alleging identity fraud were based on inaccurate facts or unrelated to Yvonne's death, and mathematical modeling showed that reaching 122 years and 164 days—while extremely rare—is statistically plausible.

Why it matters

This paper defends the validity of the longest documented human lifespan against identity-theft theories, reinforcing the empirical baseline used in biodemographic models of human mortality and longevity limits.

Limits

The abstract provides no quantitative model estimates, statistical distributions, or specific archival metrics. As an investigation of a single historical individual, findings cannot resolve broader biological mechanisms underlying extreme human longevity.

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