What are the statistics of death rate of elderly people on lasix (furosemide)?

Can you rephrase?: Do you mean: how many people died due to the use of Furosemide (lasix)? (due to toxic dose? Side effects?) how many people taking Lasix (furosemide) died for any cause? Lasix (furosemide) (diuretic) is usually given to patients for several reasons, some of them are very severe such as congestive heart failure and chronic renal failure.

Don't think it known: Just being on Lasix (furosemide) doesn't necessarily care a risk of death. This medication is used for many purposes. Some patients on this are severely and critically ill and some not so very ill. I don't think you will find any statistics as you posed your question. Perhaps a different question is answerable.