Year 1 medical undergraduates' knowledge of and attitudes to medical error.

Context: To improve patient safety, medical students should be taught about human error and the factors influencing adverse events. The optimal evaluation of new curricula for patient safety requires tools for baseline measurement of medical students' attitudes and knowledge.

Objectives: The aim of the study was to design and evaluate a questionnaire for measuring the attitudes of Year 1 medical students to patient safety and medical error.