I read somewhere recently that the survival rate for ICU patients on
ventilators was about 50%, and virtually all of the 50% survivors had
some permanent lung damage. Unfortunately I don't have the original
cite for that.
The doc I heard said basically the same thing which was a surprise to
me. The ventilators that are being talked about so much are the
"last ditch" effort to try to save people who are severely affected
and the survival rate, as you say and as the doc said, is only
about 50 percent ... maybe even less.