I don't know the statistics either. Remember that even if there is a strong genetic component, there are many other things that influence whether an individual will develop schizophrenia. The envronment and parenting received are important, as is each child's own resilience.

In my family, one brother is schizophrenic, and so was one of my mother's cousins (who had a daughter who is bipolar). We suspect that my father is on the autistic spectrum somewhere (possible mild asperger's). Anxiety and depression run rampant.

I have three children, and I think they are generally okay. I had children before my family was admitting to all of the mental health issues we have, so I didn't know the extent of it. In retrospect, I question whether I should have had children, but I question that as much because of what I have put them through as a parent (not that I haven't tried, but they have seen my self-destructive side, and I haven't been very emotionally available, and lately I've been a workaholic), as because of the genes that I have passed along.

It's a personal decision. I hope that you will consider all that you have to offer as a parent, and the kind of environment that you will be able to provide for your children, as well as family genetics. You might be a wonderful parent, and even if you have children with mental illness, maybe it will be okay if you are there for them in all the ways that they need you.