Heather asked about probabilities of multiple children in a family having CAH.  It depends on the status of the parents.  In my case, my husband and I are both carriers (one CAH gene, one unaffected).  In theory, our children each have a 1 in 4 chance of having CAH, a 2 in 4 chance of being a carrier, and a 1 in 4 chance of having 2 unaffected genes.  In practice, we have 2 children and they both have CAH.   It was exactly as likely that neither of them would be affected.  It stinks that they got this, but neither one of them got their father's great hair!

If one parent has CAH and one is a carrier, the children's odds go to a 50% chance of having the disease and a 50% chance of being a carrier.  If one parent has the disease and the other is unaffected, every child will be a carrier, but none will have CAH.  When you throw in genes for different forms of CAH, it gets more complicated.  The lines between salt-wasting, simple virilizing and nonclassical are a bit blurry, probably in part due to people who have genes for 2 different severities of CAH.  We believe this is the case with my girls.