| Resumo: | Urinary tract infection (UTI) is an important infection in children. Its highest prevalence takes place during infancy and toilet training period in which most infants use diaper. However, the impact of the diaper use on UTI has been conflicting. The aim of this study was to understand the correlation between duration of superabsorbent diaper usage with incidence of UTI in children. We performed a prospective cohort study from August-September 2011. We recruited children who used diaper everyday, went to play group or posyandu at Yogyakarta. Subjects were divided into 2 groups. We compared the incidence of UTI among children who used diaper >4 hours per day (group I) and those who used �4 hours per day (group II). There were 180 children included in this study. Out of 90 children in group I, 26 (28,9%) had UTI whereas 9 (10%) of 90 children from group II had UTI. Multivariate analysis showed that UTI was significantly higher in children who used diaper >4 hours per day compared to children who used diaper �4 hours per day (RR 3,65
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