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. Author manuscript; available in PMC: 2013 Mar 1.
Published in final edited form as: Neurobiol Aging. 2011 Mar 24;33(3):619.e1–619.e7. doi: 10.1016/j.neurobiolaging.2011.02.004

Table 1.

Demographic characteristics of the comparison groups

Group N Females (%) Mean age (SD) Mean education (SD)
LLFS offspring 305 60.9 64.4 (7.0) 12.9 (2.9)
Spouses-control 434 48.8 62.4 (8.6) 12.0 (3.3)