As a working physician for years, chairman of the infection committee, chief of medicine, chairman of the disciplinary committee, yadda yadda, I wore a lot of hats over the decades and I know a bit about hospital "errors"
Do they happen?
Yes.
Are we killing 100,000 people a year in the hospital due to errors?
No frickin way.
Every death in the hospital goes for mortality review by the executive committee - and we take it personally.
But more than that, every death in the hospital gets referred to 1-800-call-scumbag and he has tens of millions of reasons to take it personally
If the claim that we are killing 100,000 people a year who would have survived outside of the hospital had even a sliver of truth the courts would have melted down and the congress would have frozen all payments to hospitals
Now the issue of 'errors' leading to death. As chairman I read those reports, carefully. They are ludicrous in 99% of the cases they cite.
Patient PD, 82 years old, alcoholic, multiple heart attacks in past, known kidney disease, is admitted with multi-organ disease and near terminal. Included in the routine orders is a sleeping pill and tylenol. Patient is comatose and goes on to die in septic shock. The national organization that is chasing this rabbit has an agenda. They comb the chart, discover that no sleeping pill or tylenol was administered "as ordered" so that is a medical error.
Their verdict - Death complicated by Medical Error. Add one more to the hundred thousand.
I saw one report at our hospital where a morning tablet of Vitamin B12 was not given to the patient on the morning of discharge because the patient insisted on leaving before breakfast was served because her husband needed to get to work (yes, it was technically an error)
The hospital was cited for that medication error. (palm smack)