Table 1

Distribution by sex and mean ages of onset or enrollment for the idiopathic Parkinson's disease (PD), familial PD, unaffected PD relative and controls samples

N

Men (%)

Women (%)

Mean age at onset or *enrollment


Randomly ascertained PD

126

81 (64%)

45 (36%)

56.3

Familial PD

903

501 (55%)

402 (45%)

60.4

Unaffected relatives

59

26 (44%)

33 (56%)

*58.7

Controls

197

95 (48%)

102 (52%)

*65.9


Latourelle et al. BMC Medicine 2008 6:32   doi:10.1186/1741-7015-6-32

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