People with this type of Cockayne syndrome live into adulthood, with an average lifespan of 40 to 50 years. These symptoms are seen in CS type 3. Epidemiology Cockayne syndrome is rare worldwide. No racial predilection is reported for Cockayne syndrome. No sexual predilection is described for Cockayne syndrome; the male-to-female ratio is equal. Cockayne syndrome I (CS-A) manifests in childhood. Cockayne syndrome II (CS-B) manifests at birth or in infancy, and it has a worse prognosis. Recent research The recent research on Jan 2018 mentions different CS features that are seen globally with similarities and differences: CS has an incidence of 1 in 250,000 live births, and a prevalence of approximately 1 per 2.5 million, which is remarkably consistent across various regions globally: See also Accelerated aging disease Biogerontology Degenerative disease Genetic disorder CAMFAK syndrome — thought to be a form (or subset) of Cockayne syndrome References External links This article incorporates some public domain text from The U.S. National Library of Medicine Autosomal recessive disorders Rare diseases Neurological disorders Syndromes affecting the nervous system Genodermatoses DNA replication and repair-deficiency disorders Progeroid syndromes