Table 1.

Frequency of Error Type Reported by Residents, Physician Supervisor, and Health Systems Researcher for the 98 Outcomes Cards

Error Type	Residents (%)	Physician Supervisor (%)	Systems Researcher (%)
Error or delay in diagnosis	19	17	17
Failure in communication	19	24	22
Avoidable delay in treatment or responding to an abnormal test	13	17	17
Inadequate monitoring or follow-up of treatment	11	10	12