Introduction:

Urinary tract infection in children is one of the most frequent bacterial infections with a high rate of recurrence.

Objective:

Determine the risk factors for community-acquired urinary tract infection by microorganisms producing extended-spectrum beta-lactamases in children of Huancayo, Peru.

Methods:

Analytical study with case-control design. 220 children from one month to 13 years of age were studied, whom were admitted to "Ramiro Priale Priale" National Hospital with the diagnosis of urinary tract infection during the year 2019. They were distributed in two groups (40 cases and 80 controls). For each patient, a questionnaire was completed with the variables of interest, and the comparison between the groups was made. The multivariate analysis was performed considering significant a value of p< 0.05.

Results:

The frequency of urinary tract infection caused by microorganisms producing extended-spectrum beta-lactamases is 18.18%. In the cases, the predominant age is between 1 and 3 years with 42.5%, female sex with 62.5%, the predominant bacterium is: Escherichia coli in 85.0%. During the multivariate analysis, the presence of complicated urinary tract infection had OR 18.62 and p= 0.000 and recurrent OR 12.98 and p= 0.004, both statistically significant for the outcome of this infection in children.

Conclusion:

The risk factors for community-acquired urinary tract infection by microorganisms producing extended-spectrum beta-lactamases in children are complicated and recurrent urinary tract infections.

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