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