The study was funded by the Agency for Healthcare Research and Quality, the Cook County-Rush Developmental Center for Research in Patient Safety DEER Project, and the National Institutes of Health.

The most commonly missed or delayed diagnoses reported by doctors on a survey were pulmonary embolism (4.5%), drug reactions or overdose (4.5%), lung cancer (3.9%), colorectal cancer (3.3%), acute coronary syndrome (3.1%), breast cancer (3.1%), and stroke (2.6%), according to the study published in the Nov. 9 issue of the Archives of Internal Medicine.

The study found that most common errors (44%) involved doctors failing to arrange for laboratory tests or follow-up on the results. Other common errors involved over- or underconsideration of competing diagnosis (32%), issues with history-taking (10%), physical examination (10%), and referral or consultation errors and delays (3%).

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