In the Unite States medical error is estimated to result in 44,000 to 98,000 unnecessary deaths and 1,000,000 excess injuries each year.. One older extrapolation suggests '180,000 people die each year partly as a result of iatrogenic injury, the equivalent of three jumbo-jet crashes every 2 days'. It is estimated that in a typical 100 to 300 bed hospital in the United States, excess costs of $1,000,000 to $3,000,000 attributable to prolonged stays and complications just due to medication errors occur yearly.