We examined the effect of introducing a discharge plan on the occurrence of adverse events within 72 hours of intensive care unit discharge. The study excluded discharges to home or to another institution and "not-for-resuscitation" patients. The adverse events rate was 23%, of which 37% were considered to be preventable. Respiratory problems and infections were the most frequent reasons. The discharge plan contributed to a change in the nature and preventability of events and facilitates the discharge process.