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Searching for longevity hotspots in Denmark.

Anne Vinkel Hansen1,2, Laust Hvas Mortensen1,2, Rudi Westendorp1,2,3

  • 1Statistics Denmark, Copenhagen, Denmark.

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Summary
This summary is machine-generated.

Centenarian hotspots exist in Denmark, identified by birth location and late-life residence. These areas show higher-than-expected longevity, with varying explanations including migration and local mortality advantages.

Keywords:
Denmarkcentenarian ratecluster detectionlongevity

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Area of Science:

  • Demography
  • Gerontology
  • Spatial Epidemiology

Background:

  • Existing research on centenarian prevalence often focuses on specific candidate regions.
  • A comprehensive analysis of centenarian hotspots across all of Denmark is lacking.

Purpose of the Study:

  • To identify geographical hotspots of centenarians in Denmark.
  • To investigate the influence of birth region and late-life residence on centenarian prevalence.
  • To compare mortality risks in identified hotspots versus the general population.

Main Methods:

  • Utilized Kulldorff spatial scan statistics to detect birth and residence hotspots.
  • Analyzed a cohort born between 1906-1915 for centenarian status.
  • Compared mortality hazards from age 71 onwards for individuals within hotspots.

Main Results:

  • A birth hotspot was identified on rural islands, with 1.37 times the expected number of centenarians.
  • Two residence-based hotspots were found near the Danish capital, showing 1.46 and 1.44 times expected centenarians.
  • Lower mortality hazards post-age 71 were observed in the birth hotspot and one residence hotspot, linked to migration and local factors.

Conclusions:

  • Danish centenarian hotspots are identifiable using spatial analysis.
  • The location and interpretation of these hotspots differ based on whether birth or late-life residence is considered.
  • Factors such as selective migration and lower local mortality contribute to the formation of these longevity hotspots.