Figure 3

Kaplan-Meier survival curves indicating the effect of H63D and C282Y mutations on age of PD onset. (A) There are no statistically significant differences in the age at onset of PD between wild type, heterozygous and homozygous patients for H63D mutation (χ2(2df) = 2.4, P = 0.30). (B) There are no statistically significant differences in the age at onset of PD between wild type, heterozygous and homozygous patients for C282Y mutation (χ2(1df) = 1.66, P = 0.20).