Fig. 3From: An integrated modelling methodology for estimating global incidence and prevalence of hereditary spastic paraplegia subtypes SPG4, SPG7, SPG11, and SPG15Reported age-related prevalence of HSP. a Reported age-related prevalence of all HSP cases per 100.000, based on three studies from Italy, Estonia and Norway. Total population and number of HSP cases identified are reported on the right. b Reported average ages at onset in years of SPG4 and in SPG11, based on studies from Hungary, Germany, Portugal Greece, Italy, Canada, and in a worldwide reviewBack to article page