The “July phenomenon” and the care of the severely injured patient: Fact or fiction?*

Abstract Background. The “July phenomenon,” a common belief in medical academia, refers to purported errors, inefficiency, and negative outcomes during the summertime transition of the house staff. We hypothesized that care in a trauma service is consistent throughout the year and that the July phenomenon therefore is a myth. Methods. The records of adults admitted to a trauma service between July 1994 and September 1999 were evaluated. The care of and outcomes for patients admitted in July and August were compared with those of patients admitted in April and May. Results. Nine hundred seventeen patients were evaluated over 5 years. Patients were well matched by the Injury Severity Score, the Glasgow Coma Score, by mechanism, and by survival probability. Patients admitted in the spring were significantly older, by a mean of 5.1 years. Length of stay and intensive care unit stay were similar. Emergency department times were similar, as were resuscitation times, infection rates, and hospital costs. The mortality of patients was similar between the 2 times. Conclusions. There was no evidence of an increase in negative outcomes early in the academic year compared with the end of the academic year. We believe that a systematic approach to the diagnosis, resuscitation, and treatment of trauma prevented a July phenomenon. (Surgery 2001;130:346-53.)