Figure 1From: Association of HFE common mutations with Parkinson's disease, Alzheimer's disease and mild cognitive impairment in a Portuguese cohort Kaplan-Meier survival curves indicating the effect of H63D and C282Y mutations on age of AD onset. (A) There are no statistically significant differences in the age at onset of AD between wild type, heterozygous and homozygous patients for H63D mutation (χ2(2df) = 0.14, P = 0.93). (B) There are no statistically significant differences in the age at onset of the disease between wild type, heterozygous and homozygous patients for C282Y mutation (χ2(1df) = 3.08, P = 0.08).Back to article page