Application of human factors methods to understand missed follow-up of abnormal test results.

Lack of timely follow-up of test results is a recognized patient safety problem in primary care and can lead to missed or delayed diagnoses. This study used human factors methods to understand lack of timely follow-up of abnormal test results in outpatient settings. Through interviews with the ordering physicians, the researchers identified several contributing factors, such as provider-patient communication channel mismatch and diffusion of responsibility.