• K R Evenson, W D Rosamond, J A Vallee, and D L Morris.
• Wake Forest University School of Medicine, Winston-Salem, NC, USA. kelly_evenson@unc.edu
• Ann Epidemiol. 2001 Apr 1;11(3):202-7.

PurposeThis study examines the concordance between symptom onset obtained during an interview in the emergency department (ED) compared to that recorded in the medical record among patients with stroke-like symptoms and characterizes the frequency of missing symptom onset information in the medical record.MethodsInterviews with patients presenting with signs and symptoms of acute stroke were completed in the ED of seven hospitals to determine symptom onset time. Symptom onset recorded in the medical record was abstracted after the patient was discharged.ResultsAmong the patients who presented to the ED with stroke-like symptoms, 60.2% overall and 61.9% among stroke patients had a symptom onset date and time recorded in the medical record. The Pearson correlation of prehospital delay time, comparing symptom onset obtained by interview to that obtained by the medical record was 0.80 and among stroke patients was 0.91. Concordance of prehospital delay time for stroke within +/- 1 h between the interview and the medical record was 60.1%. For stroke patients, concordance was more likely for those who had higher functional status prior to the acute episode.ConclusionsSymptom onset time was often missing from the medical record. Standardized and systematic recording of delay time in the medical record could increase its utility as a clinical measure and as a research tool for acute stroke.

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