[HaiPro--what was learned from patient safety incidents in Finnish health care units in 2007 to 2009?].

Reports of the HaiPro reporting system are described and the role of reporting procedure aiming at internal development of the units and the possibilities of national development and monitoring of patient safety are discussed. The study material consisted of 64,405 reports of patient safety incidents accumulated from May 5, 2007 to December 31, 2009 to the HaiPro database from 36 user organizations. Of the reported incidents, 51% were associated with medicaments and the process of medication. The most common incidents were errors in registration, dispensing and administration of the drugs.