Prevalence of information gaps in the emergency department and the effect on patient outcomes

Stiell, Andrew; Forster, Alan J.; van Walraven, Carl; Stiell, Ian G.
November 2003
CMAJ: Canadian Medical Association Journal;11/11/2003, Vol. 169 Issue 10, p1023
Academic Journal
Information gaps occur when previously collected information is unavailable to a physician who is currently treating a patient. In this study we measured the prevalence of physician-reported information gaps for patients presenting to an emergency department at a teaching hospital. Methods: For 1002 visits to the emergency department made by 983 patients, we recorded all information gaps identified by the emergency physician immediately after the patient was assessed. When an information gap was present, the physician was asked to identify the required information, why it was required and how important it was to the patient's care. We reviewed the patient charts to measure severity of illness and to determine whether the patient was referred to the emergency department by a community physician. Multiple linear regression analysis was used to determine whether information gaps were associated with length of stay in the emergency department. Results: At least 1 information gap was identified in 323 (32.2%)of the 1002 visits (95% confidence interval 29.4%-35.2%).Information gaps were associated with severity of illness, being significantly more common in patients who had serious chronic illnesses, those who arrived by ambulance, those who had visited the emergency department or had been in hospital recently, patients in monitored areas in the emergency department and older patients. Information gaps most commonly comprised medical history (58%) and laboratory test results (23.3%) and were felt to be essential to patient care in 47.8% of the cases. The presence of information gaps was not associated with admission to hospital. After adjusting for important confounders, including patient sex, previous hospital admissions, diagnosis and severity of illness, we found that stays in the emergency department were 1.2 hours longer on average for patients with an information gap than for those without one. interpretation: Information gaps were present in almost one-third...


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