Hi Lyndsey

You’ll need Adobe Acrobat to read this, but if you scroll down to the bottom of Page 3 - ("Will My Baby Get CAH?") - you’ll find some of the info you seek. http://www.endocrinology.org.uk/pdf%20box/cah.pdf

 

The figures you ask for are here, but remember carrier rates are quite different within different ethnic groups:

http://www.rch.unimelb.edu.au/cah_book/inherited/index.cfm?doc_id=1403