Analysis of the Influence of Diagnosis Related Variables on the Accuracy of Initial Diagnosis in Patients with Acute Abdominal Pain Seen at the Emergency Center

Abstract

Background: Abdominal pain is a common complaint seen at emergency centers. Various diseases can cause abdomin al pain making it difficult to make a correct diagnosis. In the elderly, however, the consequences of an incorrect or delayed diagnosis can be more critical. We investigated the accuracy of initial diagnoses in the emergency center and analyzed the associations among medical factors including age. Methods: We compared the ICD 10 codes of initial diagnoses to the codes of final diagnoses, defined the ‘degree of agreement’ using a 5 point scale, and classified patients into ‘high degree of agreement’ or ‘low degree of agreement’ groups. According to the severity of illness, we classified patients as ‘admission’ or ‘out patient follow up’. According to their illness, we classified them as ‘surgical’ or ‘medical’. According to age, we classified them as ‘elderly’ or ‘adult’. Finally, we analyzed the statistical significance of each association. Results: Overall, admitted patients and surgical diagnoses had higher degrees of agreement. ‘Elderly’ patients had no significant difference in ‘degree of agreement’ from ‘adult’ patients. Conclusion: Among patients presenting with acute abdominal pain to the emergency center, the degree of agreemen t between initial diagnosis and final diagnosis is dependent on the diagnostic characteristics of the disease, and not on the age of the patients. Further studies on the diagnostic accuracy of individual diseases are needed. Additional diagnosis associated variables, for example comorbidity and prognosis, needs to be studied regarding relationship to diagnostic accuracy.