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. Author manuscript; available in PMC: 2012 Oct 28.
Published in final edited form as: Psychol Aging. 2008 Mar;23(1):154–168. doi: 10.1037/0882-7974.23.1.154

Figure 1.

Figure 1

Frequency of observations in the Berlin Aging Study in relation to chronological age (Panel A) and distance-to-death (Panel B). The large majority of the 961 observations available were in fact longitudinal in nature. In the age models, observations were spread relatively equally across the three age decades (70s: n = 188, 80s: n = 406; 90+s: n = 367). In the distance-to-death models, about 50% of the observations were taken in the last three years prior to death (nobservations = 682).