In my case, I had a lung issue and CT scans are more sensitive to air being where it shouldn't be. At least two of the 5 ct scans could probaly just have been x-rays tho.
So 0.1% extra lifetime risk for every CT scan, I guess I went from 40% lifetime risk to 40.5, I guess I'll keep not drinking, not smoking and not being obese to help with the statistics.