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. Author manuscript; available in PMC: 2009 Aug 15.
Published in final edited form as: Mov Disord. 2008 Aug 15;23(11):1596–1601. doi: 10.1002/mds.22186

Table 1.

Summary statistics including average age of onset and sex distribution for LRRK2 and other Familial PD cases.

Number of cases Number of Families Percent male Average age of onset
Total 484 248 57.0 62.2
Familial PD 449 230 57.9 62.4
LRRK2 PD 35 18 45.7 60.7

Both LRRK2 and Familial PD cases have similar onset ages, although the proportion of male cases is greater for the Familial PD sample.