A statistical analysis of epistaxis between outpatients and inpatients

Although we found several statistical studies on epistaxis, we found no reports discussing clinical differences in nasalbleeding between outpatients and inpatients. We therefore examined 103 inpatients (1998 2001) and 337 outpatients(2001) with epistaxis for gender, age, season, bleeding points, and blood pressure. We then compared these parametersstatistically in both groups using Mann-Whitney's U test. The incidence of epistaxis in inpatient, was statistically higherin winter than in any other season, and most had uncontrolled borderline hypertension. We concluded that borderlinehypertension worsens in winter and that patients with borderline hypertension should be medicated to prevent severe epistaxis.