That does seem unusually low.
Only if you assume “didn’t walk out of the hospital” means “didn’t survive until discharge”. I assumed he meant that most of those people never fully recovered, left in a wheelchair, or spent the rest of their lives in a nursing home.
That is how I read it too but it is unnecessarily vague. Also, many conditions of being weak or in a wheelchair is preferable to death in my opinion.
Only if you assume “didn’t walk out of the hospital” means “didn’t survive until discharge”. I assumed he meant that most of those people never fully recovered, left in a wheelchair, or spent the rest of their lives in a nursing home.
That is how I read it too but it is unnecessarily vague. Also, many conditions of being weak or in a wheelchair is preferable to death in my opinion.