&NA;We have recently developed a Data Bank for Digestive Disorders, with primary data derived from the performance of upper gastrointestinal endoscopy. By using this system to analyze the clinical characteristics of patients with atypical chest pain, we found information from the patient's history (reflux, dysphagia, abdominal pain) useful in determining final diagnosis. Further development of the system may allow more selective use of diagnostic procedures for patients with digestive disorders.