An official website of the United States government
Here's how you know
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Age-specific hazards of death for the whole 1905 birth cohort starting from age 80 (solid line) and e4 allele carriers (dashed line) and non-carriers (dash-dotted line) starting from age 93. The genotype-specific mortality deviates remarkably from proportional.