"The findings suggest patients aren't told enough about how to take care of themselves and stay healthy before they go home, the researchers said. A few simple things — like making a doctor's appointment for departing patients — can help, they said."
"The study found that a surprising half of the non-surgery patients who returned within a month hadn't even seen a doctor between hospital stays.""About 10% of all readmissions were probably planned, such as putting in a stent, the researchers said. They estimated that unplanned return visits accounted for $17.4 billion of the $102.6 billion that Medicare paid hospitals in 2004."