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# Socioeconomic advantage tracks slower biological ageing across 12 European countries
- URL: https://www.coios.me/socioeconomic-advantage-tracks-slower-biological-ageing/
- Published: 2026-09-18T23:16:34.000Z
- Updated: 2026-09-18T23:16:34.000Z
- Description: In SHARE, three Klemera-Doubal biological-age measures predicted functional limitation, cognition and mortality, and every indicator of socioeconomic advantage was associated with lower age acceleration, though the size of the gradient differed markedly between countries.
- Author: Daniel Ryan
- Tags: Healthcare today, Inequalities in health and length of life, European Union, #preprint, #confirms, #item, #source-2026-09

A single-author preprint built three sex-specific Klemera-Doubal biological-age measures from overlapping biomarker panels in 10,043-14,015 SHARE respondents aged 50-75 across 12 countries, and related them to social origin, education, income and wealth. All three measures predicted incident ADL/IADL limitation, lower cognition and mortality (mortality hazard ratios 1.44-1.92), and age acceleration was 0.076-0.107 SD lower per 1-SD higher education. In joint origin-destination models the respondent's own position carried the association while conditional parental-origin coefficients were compatible with zero, and 11 of 18 country-heterogeneity tests were significant after adjustment.

*Why it is interesting: The socioeconomic gradient in a biomarker-based ageing measure holds across Europe but its steepness varies by country in a way that welfare-state or development typologies did not explain.*

Source

[medRxiv, 2026-09-16](https://doi.org/10.64898/2026.09.11.26361838?ref=coios.me)

DOI

10.64898/2026.09.11.26361838

Type

Preprint

Design

Cross-national cohort analysis of SHARE Wave 6 biomarkers (10,043-14,015 adults aged 50-75, 12 countries, 2015, followed to Wave 9)

Verdict

Confirms prior evidence

Driver

[Inequalities in health and length of life](https://www.coios.me/d-health-inequality/)