The study included patients with functional dyspepsia or peptic ulcers who were between 19 and 70 years of age who had been referred for high digestive endoscopy for dyspeptic symptoms. Patients had not received previous H. Pylori eradication treatments within the three months prior to the referral and had not received antisecretory drugs, bismuth or antibiotics for one month prior to referral.
Se incluyeron prospectivamente pacientes con dispepsia funcional o úlceras pépticas con edades entre 19 y 70 años que hayan sido remitidos a endoscopia digestiva alta por síntomas dispépticos, que no hubieran recibido tratamientos previos de erradicación de H. pylori dentro de los tres meses anteriores, como tampoco durante el mes anterior medicamentos antisecretores, bismuto o antibióticos.