Incidence of Symptomatic and Asymptomatic Bacteriuria After Urodynamic Study With or Without Antibiotic Prophylaxis in Women With Urinary Incontinence

This study is randomized, double blind study was carried out in the Department of Gynecology at Sao Paulo Federal University from January 2009 to December 2012.

The patients were randomized in four groups: Group A received 500mg of levofloxacin, group B received placebo, group C received 80mg trimethoprim and 400mg sulfamethoxazole (SMZ-TMP) and group D received 100mg of nitrofurantoin. The tablets were administered 30 minutes before de UDS.

All patients were instructed to collect midstream urine sample to the microbiology laboratory 14 days after the UDS. Significant bacteriuria was considered when >1.000.000 organisms/mL of a single species was isolated.

All data were entered into Statistical Package for Social Sciences (SPSS) 16.0 for statistical analysis and graphic representation. Likelihood -ratio test and Fisher's exact test were used to compare the prevalence of significant bacteriuria after UDS in the different groups and Student's t-test and ANOVA test were used to compare continuous variables. To compare the groups regarding the BMI variable and parity, the model analysis of variance (ANOVA) was used, or if necessary, the nonparametric Kruskal-Wallis test and to compare the groups in relation to menopause variable, we used the Chi-square test. A significance level of 0.05 was established for statistical analysis.