Skip to main content
. Author manuscript; available in PMC: 2011 Jul 13.
Published in final edited form as: Dev Psychol. 2011 Jul;47(4):1026–1041. doi: 10.1037/a0023426

Figure 1.

Figure 1

Frequency of observations in the Seattle Longitudinal Study in relation to chronological age (Panel A) and time-to-death (Panel B), separately for the two birth cohorts. For the age models, each cohort encompassed more than 700 participants who contributed more than 2,400 data points each over a 30-year observation period that was, on average, comparable across cohorts. For the time-to-death models, each cohort encompassed more than 280 participants who contributed more than 900 data points each over a 25-year observation period that was, on average, comparable across cohorts.