The frequency of epistaxis in a male population sample.

In a population sample consisting of 507 males aged between 50 and 60 years and 120 thirty-year-old sons of these males the frequency of epistaxis and predisposing factors of epistaxis were studied. Only one-third of the subjects had never had epistaxis. One out of ten subjects had been treated for epistaxis by a doctor at least once in his life. About 3 per cent had had nose-bleeds during the previous week. Statistically it was shown that a history of upper respiratory infection and intake of acetylsalicylic acid separately might predispose to expistaxis.