My statement is based on practicing medicine for the last 15 years, admitting patients, having to sign med-reconciliation, therapeutics committee work etc.
If you have 12meds as an outpatient, you have a sloppy PCP. If you have 12 meds in the ICU, you are probably not going to make it out alive.
I am not talking about the post-transplant onc patient, I am talking about your average granny who just gets drugs added with every admission and every new nurse practicioner at the corporate clinic she is forced to go to. Everyone clicks on the 'reconcile' button without ever wondering why the patient has two antihypertensives with the same mechanism of action.
If we wanted to cut healthcare cost, we would train more geriatricians and hospice specialists. But we don't actually want to.