Relationship Age-Gap Evidence Atlas

Empirical Demographics & Actuarial Longevity Workbench

Demographic Synthesis

Scenario Controls

Empirical Sources: Drefahl (2010) Demography cohort mortality studies; Wang et al. longitudinal marital satisfaction models; Census & NSFG survival data. Estimates reflect statistical distributions, not individual destiny.
Divorce Hazard Ratio
1.18x
vs Peer Baseline Parity (1.00x)
Projected Joint Survival
44.2 yrs
Both partners alive horizon
Male Mortality Shift
-5.4%
Drefahl spousal age buffer
Female Mortality Shift
-2.1%
Drefahl spousal age buffer
A 5-year male-older age gap reflects a standard demographic cohort with modest divorce elevation relative to exact peer matches (+18%), strong initial satisfaction with convergence toward peer baselines at year 6-10, and favorable actuarial mortality buffering for the older male partner.

Exportable Evidence Dossier

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