Is urinary tract infection a predisposing factor for renal stone formation?

The study was carried out to assess whether Urinary Tract Infection (UTI) is a predisposing factor for Renal Stones (RS) formation. A total of 836 subjects (males 300; females 536) attending Surgery Out Patient Department (OPD) of which were either diagnosed of UTI or had been detected of RS for a period of two years from January 2001 to December 2002 were included. Of the 836, 240 had UTI and 596 were free from UTI. The prevalence of RS was higher without UTI (44.4%) than those with UTI (27.8%) in males. In case of females the result showed (17.6%) and (5.1%) in cases with and without UTI. Chi square test revealed statistically significant difference in the proportion of prevalence between subjects with and without UTI with (p < 0.01) in males and (p < 0.001) in females. Males had higher incidence of RS than females with a prevalence of (p < 0.0001). The higher occurrence of RS was observed in age group between 21-40 years for both genders.