[Gastroduodenal peptic ulcer and height].

763 patients from the "Honorio Delgado" Regional Hospital of Arequipa city (2300 mts ht) are studied, all suffering of gastroduodenal peptic ulcer disease. A comparison between the principal clinical feactures of patients coming from the Coast and the Hights, is done. It is concluded that in patients from the Hights ulcer disease has an earlier beginning (third decade), clinical features are atypical; the incidence of complications are higher (59%) mainly hemorrhagic ones (53%); the occurrence of gastric ulcer is also higher (DU/GU = 2.5/1 against 5/1 seen in patients from the Coast) and mortality rate is greater (2.0%).