CIO, yes. But CC is very popular in loads of places.
Pixilixi, I'd dispute that, I've only ever heard of one Australian doing CIO, and everyone I told about it had never heard of it, either. CC, yes, but never ever CIO.
|I would say that cio has its roots in American culture; and given America's influence over other nations, I would imagine that other countries and cultures, particularly those that are Western and/or industrialized have adopted cio or some permutation of it.
Actually the British culture of a maternity nurse and strict scheduling is probably responsible, just Weissbluth took it to the radical extreme.