I can't find any studies which describe that, but that was the information given to me when I participated in the TrialNet study. Not having a history of type
1 doesn't really mean anything, type
1 is being diagnosed more and more often in children that have no history in their families. It's unfortunate, but true.
My suggestion would be to continue to keep in contact with your endo and family doctor, followups will be necessary to verify glucose scores and the status of the pre-diabetes.