Table 3.

Subjects with SOMAscan protein data—NECS

	Centenarians	Offspring	Controls
Numbers	77	82	62
Mean age at serum yrs (SD)	105.7 (3.7)	71.0 (9.1)	70.6 (5.2)
Mean age at last contact	107.5	80.2	78.7
% alive (as of December 2017)	31%	84%	84%
% Female	66%	66%	55%

Mean age at serum yrs (SD): mean age at serum draw in years with standard deviation; mean age at last contact: mean age at death for deceased subjects and age at the last follow-up for those who are still alive (based on the 2017 follow-up).