This is old news...I read about the diabetes angle many yrs ago and iirc, THAT study said even one use of these steroids can harm you in regard to development of diabetes.
This is how I got diabetes. The pharmacist gave me double the dose that the doctor had called in. The doctor didn’t tell me the dose she had prescribed, so I didn’t know. One week later I was in the ER with a glucose level of 186, 4 hours after eating. The doctor told me that I had most likely developed it, but I wouldn’t know for sure until the meds were out of my system. Sure enough, I’m diabetic now. My previous glucose labs were always normal.