A 2013 review stated that life expectancy for<unk>  was 12 years lower than the general population and that the causes of death were similar to those found for the general population.
Fragile X syndrome
Trichothiodystrophy
Rett syndrome
Fragile X-associated tremor/ataxia syndrome
X-linked dystonia parkinsonism
Foster Kennedy syndrome
Krabbe disease
Joubert syndrome