title: [Esophageal varices as a cause of upper digestive hemorrhage in cirrhotic patients: clinical and epidemiologic investigation].
abstract: We studied the association between esophageal varices as the course of upper gastrointestinal bleeding and hepatic cirrhosis. 154 patients were admitted 43 patients in which esophageal varices bleeding was diagnosed were considered "CASES". 111 patients in which the source of bleeding was different (peptic ulcer, duodenitis, gastritis or tumor) were considered "CONTROL". The diagnosis of hepatic cirrhosis was confirmed in 69 patients in this group the main cause of bleeding was varices (62%). The "CASES" and "CONTROL" were crossed in 2 x 2 tables with the cirrhosis variable. Hepatic cirrhosis showed statistic and epidemiological association with variceal bleeding by means of CHi Square (p less .005) and Odds ratio about 138.92 with 95% confidence interval about 18.92 to 2844.8. In the control group this associations was not proved.
authors.affiliation: Laboratorio Multidiciplinario de investigación clínica epidemiológica, Universidad de los Andes, Hospital Universitario de los Andes.
authors.forename: C A
authors.initials: CA
authors.lastname: Gainza Carrillo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D004932:Esophageal and Gastric Varices / Q000150:complications*; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008103:Liver Cirrhosis / Q000150:complications*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies
vernacular_title: Várices esofágicas como causa de hemorragia digestiva superior en pacientes cirróticos: investigación clínica epidemiológica.