Statistics by Country for Costello syndrome Prevalance of
Costello syndrome: only about 250 cases of Costello syndrome has
been reported worldwide, Genetics Home Reference website About
extrapolations of prevalence and incidence statistics for
Costello syndrome: WARNING! EXTRAPOLATED STATISTICS ONLY! Not
based on data sources from individual countries. These
statistics are calculated extrapolations of various prevalence
or incidence rates against the populations of a particular
country or region. The statistics used for prevalence/incidence
of Costello syndrome are typically based on US, UK, Canadian or
Australian prevalence or incidence statistics, which are then
extrapolated using only the population of the other country.
This extrapolation calculation is automated and does not take
into account any genetic, cultural, environmental, social,
racial or other differences across the various countries and
regions for which the extrapolated Costello syndrome statistics
below refer to. The extrapolation does not u