given the more integrated and comprehensive data infrastructure in hospitals safety in that setting is potentially seen as more inviting for researchers despite these difficulties a number of highly innovative studies have examined safety in primaiy and ambulatory care but the lack of consistent data and a range of methods used to measure harm have delivered very wideranging results systematic reviews suggest that safety lapses occur between and times in every primaryambulatory care consultations the hann most commonly stems from diagnostic errors and subsequent delays in treatment or therapy and adverse drug events ades