The Prevalence of Urinary Tract Infection in Patients Related to Type of Drainage Bag

Abstract

The prevalence of urinary tract infection in patients catheterised inside the hospital was studied in relation to the type of drainage bag used. Five hundred and thirty-two adult patients of both sexes were studied in three groups consisting of (1) open drainage system with an infection incidence of 38.9%; (2) closed system with 25.1%; and (3) the closed system plus the addition of chlorhexidine with 15% infection. The overall incidence of infection was 29.8%. There was a statistically significant difference between the first and the second group (p less than 0.01), the first and the third group (p less than 0.01), but none between the second and third groups (p greater than 0.01). The incidence was higher in women than in men (p less than 0.01), but only in the age group greater than or equal to 60 (p less than 0.01). The index of medical patients was significantly higher than in urological patients (p less than 0.05), while there was no statistical significance between surgical and urological patients (p greater than 0.1). The highest prevalence of infection in the three groups occurred on the seventh day. Gram-negative bacteria were 63.3%, Gram-positive 10.1% and fungi 26.6%.