Objective: The aim of this study was to obtain the agent pathogens and the etiologic factors in the 1490 cases that are followed with the diagnosis of urinary tract infection by Van Yüzüncü Yıl University, School of Medicine, Department of Pediatric Nephrology.
Materials and Methods: A patient group of the last 8 years who were followed due to the urinary tract infection in our hospital was examined. This patient group was chosen by file research.1490 children were included to the study, age between 1 day and 204 months.
Results: With the evaluation of the factors and distribution of the urinary tract infection, 2897 urinary culture positive cases were obtained. The urinary tract infection etiologic factors in order of frequency were as follows: Escherichia coli, Klebsiella spp, Proteus spp, koagulase negative Stafilococcus spp, Enterobacter spp, Staphilococcus aureus, Pseudomonas aeruginosa, Enterococcus spp and others. Together with the urinary tract infection gastroenteritis, malnutrition, phimosis, bladder dysfunction, mental-motor deficiency, urinary system stone disease, enuresis nocturna, hypercalciuria, constipation, neurogenic bladder, febrile convulsion, prolonged jaundice were remarkable. It was seen that 14.3% of the patients had recurrent infection
Discussion: In our study, it was seen that the females were more than the males, except the newborn period. The females were not 3-5 times more and the ratio was only 1.34 times. The gram negative bacterias which are parallel to the literature were detected at the all age groups. When this study is compared by the similar studies according to vesicouretheral reflux, II and III degree vesicouretheral reflux detecting ratios were similar but the first degree vesicouretheral reflux ratio was less. The scar ratio detected at the kidney was nearly similar to the literature but the ratio was more at our cases. Chronic renal failure ratio is 0.07-0.2% at the patients who had the urinary tract infection. In our cases, chronic renal failure was detected 1.7% (26 patients). This high ratio shows us that the chronic renal failure depending on the urinary tract infection is a serious morbidity and mortality reason.
. Conclusion: This study shows that it is needed to make new studies about the urinary tract infection at the low social and low economic regions of Turkey.

Urinary tract infection Escherichia coli Chronic renal failure