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. Author manuscript; available in PMC: 2024 Feb 5.
Published in final edited form as: Demography. 2023 Dec 1;60(6):1815–1841. doi: 10.1215/00703370-11057546

Table 1.

Descriptive statistics

Full Sample White Black p Valuea

Mean/Prop. (N = 6,782) Mean/Prop. (n = 5,429) Mean/Prop. (n = 1,353)

Outcomes
 PhenoAge biological age acceleration 0.635 0.113 2.730 <.001
 KDM biological age acceleration 1.508 −0.767 10.637 <.001
 Homeostatic dysregulation (log) 3.969 3.887 4.298 <.001
Covariates
 Race (1 = Black) .199
 Age (years) 70.910 71.786 67.392 <.001
 Sex (1 = female) .582 .568 .636 <.001
 Birth cohort
  AHEAD .010 .012 .002
  CODA .060 .069 .024
  HRS .304 .330 .200 <.001
  War babies .165 .178 .117
  Early baby boomers .222 .200 .309
  Mid-baby boomers .238 .211 .348
 Region of birth (1 = South) .354 .277 .664 <.001
 SES (factor score) .128 .304 −.581 <.001
 Stress burden (factor score) .024 −.064 .377 <.001
a

p value of the Black-White difference in mean/proportion, two-tailed test.