Errors in emergency medicine: research strategies.

Medical errors in emergency departments (EDs) may be an important "public health risk." Therefore, scientific public health approaches should be used to 1) assess the magnitude of emergency medical errors with surveillance methods, 2) identify causal factors of these medical errors with clinical epidemiologic methods, and 3) evaluate the effectiveness of interventions aimed at reducing or eliminating emergency medicine errors with health service research techniques. Since errors result from complex human-system interaction, research efforts should focus on actions taken by the patient, factors concerning the ED environment, and actions taken by health care workers. Other medical and nonmedical fields have already made great advancements in studying and reducing human error. Many of these advancements could readily be adapted to study emergency medical errors.