What is changing is the direction of the migration.
In recent decades, the proportion of international migrants
who migrate from less developed to more developed regions,
what on this slide is called South-to-North migration has increased.
But it's still only about a third of all migrants, that is 35%.
Another 34% migrate among countries in the south,
and 25% migrate among countries in the north.
So South-to-North migration is only a third
with respect to age composition, a large majority of international markets,
around 72%, are prime working ages from 20 to 64.
The median age is 39, which is actually a little bit older than the world average,
part of the reason for that is a statistical problem.
Children born to migrants in their country of destination are not counted as
international migrants in accordance with the definition that I just stated above.
However, on average, migrants are of working age and therefore also of
the age where economic productivity is high and health is realistically good.
The one issue where they may have more need for healthcare than other age groups
is reproductive healthcare, which is particularly concentrated at those ages.
However again it's national migrant is umbreliton covering
many different kinds of groups with very very different health situations and
protect the framework to help them with their health.