title: Accuracy of a new clean-catch technique for diagnosis of urinary tract infection in infants younger than 90 days of age.
abstract: OBJECTIVE
  To evaluate the accuracy of diagnosing urinary tract infections using a new, recently described, standardized clean-catch collection technique.
  
  
  METHODS
  Cross-sectional study of infants <90 days old admitted due to fever without a source, with two matched samples of urine obtained using two different methods: clean-catch standardized stimulation technique and bladder catheterization.
  
  
  RESULTS
  Sixty paired urine cultures were obtained. The median age was 44-days-old. Seventeen percent were male infants. Clean-catch technique sensitivity was 97% (95% CI 82% to 100%) and specificity was 89% (95% CI 65% to 98%). The contamination rate of clean-catch samples was lower (5%) than the contamination rate of catheter specimens (8%).
  
  
  CONCLUSIONS
  The sensitivity and specificity of urine cultures obtained using the clean-catch method through the new technique were accurate and the contamination rate was low. These results suggest that this technique is a valuable, alternative method for urinary tract infection diagnosis.
authors.affiliation: Pediatrics Department, Infanta Sofia University Hospital, San Sebastián de Los Reyes; ; Health Sciences Faculty, European University, San Sebastián de Los Reyes, Madrid, Spain.
authors.forename: María Luisa
authors.initials: ML
authors.lastname: Herreros
authors.affiliation: Pediatrics Department, Infanta Sofia University Hospital, San Sebastián de Los Reyes; ; Health Sciences Faculty, European University, San Sebastián de Los Reyes, Madrid, Spain.
authors.forename: Alfredo
authors.initials: A
authors.lastname: Tagarro
authors.affiliation: Pediatrics Department, Infanta Sofia University Hospital, San Sebastián de Los Reyes;
authors.forename: Araceli
authors.initials: A
authors.lastname: García-Pose
authors.affiliation: Microbiology Department, Infanta Sofía University Hospital, San Sebastián de Los Reyes, Madrid, Spain.
authors.forename: Aida
authors.initials: A
authors.lastname: Sánchez
authors.affiliation: Pediatrics Department, Infanta Sofia University Hospital, San Sebastián de Los Reyes; ; Health Sciences Faculty, European University, San Sebastián de Los Reyes, Madrid, Spain.
authors.forename: Alfonso
authors.initials: A
authors.lastname: Cañete
authors.affiliation: Health Sciences Faculty, European University, San Sebastián de Los Reyes, Madrid, Spain.
authors.forename: Pablo
authors.initials: P
authors.lastname: Gili
keywords: Bladder stimulation; Catheterization; Clean-catch; Urinary tract infections; Urine sample