Prevalence of lower urinary tract symptoms in school-age children |
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Authors: | Giovana T Vaz Monica M Vasconcelos Eduardo A Oliveira Aline L Ferreira Paula G Magalhães Fabiana M Silva Eleonora M Lima |
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Institution: | 1.Pediatric Nephrology Unit, Hospital das Clinicas,Federal University of Minas Gerais (UFMG),Belo Horizonte,Brazil |
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Abstract: | Epidemiological studies have demonstrated rates of incontinence and enuresis as high as 20% in school-age children. This cross-sectional
study aimed to investigate the prevalence of lower urinary tract (LUT) symptoms in 739 children aged 6–12 years enrolled in
three government schools with different socioeconomic levels in Minas Gerais, Brazil. Symptoms of LUT were evaluated using
a modified version of the Dysfunction Voiding Scoring System in which the cutoff point considered as an indicator of LUT dysfunction
is >6 for girls and >9 for boys. Children with a score indicative of symptoms received an educational booklet on the functioning
of the LUT and were sent for clinical evaluation. LUT dysfunction symptoms were detected in 161 (21.8%) children. Symptoms
were most frequent in girls (p < 0.001), children aged 6–8 (p < 0.028), and attended the school with the lowest social level (p < 0.001). Intestinal constipation was the most prevalent finding (30.7%), independent of LUT score. The most common urinary
symptoms in children with an elevated score were diurnal urinary incontinence (30.7%), holding maneuvers (19.1%), and urinary
urgency (13.7%). Stress factors were associated in 28.4% of children. Our findings suggest that LUT symptoms must be investigated
carefully at routine pediatric visits. |
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