It should read 23% of ICU patients (or who died or both) had a diagnostic error.
There is a difference. The abstract doesn't say but say 250,000 patients had been in the hospital over the time they randomly selected the 2.4k patients who died or were sent to the ICU or both (estimated from the fact that most hospitals have about 10% ICU beds).
That would be 2.3% of patients will experience an error that will put them in the ICU or kill them or both.
“It should read 23% of ICU patients (or who died or both) had a diagnostic error.”
Thank you. I had a strong sense that the headline had misstated the statistical situation, and I was looking for the part that would explain basically what you just said.