Although I agree that it is uncertain, there have been surveys of people diagnosed with schizophrenia who turn out in a large fraction of cases to describe child abuse. Then there are others that say there is no relationship. If you pose the question on Google, for instance, you will find some studies that say yes and others that say no. It is not clear-cut; there is no consensus.

Personally, looking at what I know about my thinking, I can see how it could well be a cause, in some cases. I don't think all these various diagnoses in different categories are all that unrelated. I think they are all connected by stress in some form, the effects depending not only on the stresses but also on the susceptibilities of different people being -- different.