City-wide screening for urinary abnormalities in schoolgirls

Can Med Assoc J. 1973 Nov 17;109(10):981-5.


Screening for urinary tract infection was carried out in 23,427 schoolgirls, aged 5 to 14 years, using Uricult and, for hematuria, glycosuria and proteinuria using Hema-combistix. Cultures of 10(5) colonies per ml. or more on two occasions were obtained in 2.3% and a positive culture was confirmed by the family physician using standard culture techniques in 82.7% of cases, giving an overall incidence of infection of 1.9%. Fifty-eight percent of these children had no previous history of any urinary tract symptoms. Of the infected group 9.5% had pyelonephritic scarring, 58.7% chronic cystitis and 58.7% urethral stenosis. Two additional cases had unilateral ureteropelvic junction obstruction with hydronephrosis. Reflux occurred in 26.6% of those investigated by voiding cystogram. In 58% of cases the urinary tract infection was not accompanied by significant proteinuria, hematuria or pyuria.Proteinuria was detected on two occasions in 1.6% of the children and confirmed by the family physician in 33% of cases, giving an overall incidence of 0.5%. In this group 9.2% had evidence of pyelonephritic scarring without a positive urine culture.Hematuria was detected on two occasions in 0.6% of the children and was confirmed by the family physician in 53%, giving an overall incidence of 0.3%. Only one case with pyelonephritic scarring was seen in this group.Of the 25 cases with pyelonephritic changes only six had been previously diagnosed radiologically.Four previously unrecognized diabetics were also detected.

Publication types

  • Comparative Study

MeSH terms

  • Adolescent
  • Alberta
  • Bacteriuria / diagnosis
  • Child
  • Child, Preschool
  • Costs and Cost Analysis
  • Cystitis / etiology
  • Cystoscopy
  • Diabetes Mellitus / urine
  • Female
  • Glycosuria / diagnosis
  • Hematuria / diagnosis
  • Humans
  • Hydronephrosis / etiology
  • Mass Screening*
  • Proteinuria / diagnosis
  • Pyelonephritis / etiology
  • Pyuria / diagnosis
  • School Health Services*
  • Ureteral Obstruction / etiology
  • Urinary Tract Infections / complications
  • Urinary Tract Infections / diagnosis*
  • Urinary Tract Infections / epidemiology
  • Urography
  • Vesico-Ureteral Reflux / etiology