Urinary tract infections in pediatric practice. A comparative study of three diagnostic tools: dip-slides, bacterioscopy and leucocyturia.
1,261 fresh urine specimens of patients of a pediatric office were examined by optical microscope and cultured on dip-slides (Urotube). 132 pathological bacteriurias, representing 95 certain episodes of UTI, served as reference material. The bacteriuria, leucocyturia and bacterioscopy were analysed by means of four validity tests: sensitivity test, predictive value of negative test, specificity test, and predictive value of positive test. The comparison shows that bacterioscopy is as valuable as dip-slides, provided that (a) only the clearly or highly positive bacterioscopies, or (b) the associated bacterioscopy and leucocyturia--but only double negative or double positive--be considered.
D001437:Bacteriuria / Q000175:diagnosis*; D005188:False Negative Reactions; D005189:False Positive Reactions; D006801:Humans; D007962:Leukocytes; D008297:Male; D008722:Methods; D014552:Urinary Tract Infections / Q000175:diagnosis*; D014556:Urine / Q000166:cytology*