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Hematuria and Proteinuria in School Children.

Journal of the Korean Pediatric Society 1981;24(1):13-23.
Published online January 15, 1981.
Hematuria and Proteinuria in School Children.
Woon Sik Kim
Department of Pediatrics, College of Medicine, Seoul National University, Korea.
學校 集團 檢尿에 關한 硏究
김운식
서울大學校 醫科大學 小兒科學敎室
Abstract
The following results were obtained through the screening survey to detect the prevalence of hematuria & proteinuria in the healthy Korean schoolchildren. A total of 2,888 primary schoolchildren in Seoul, examined to be healthy by the author were tested for hematuria and proteinuria during the period of 3 months from Apr. 1979 to June 1979. Hemacombistix of Ames Company, U.S.A. was used in this examination. 1. The prevalence of hematuria detected with Hema-combistix was 1.97%(57 children) and that of microscopic hematrua was 0.93% (27 children). The prevalence of proteinuria was noted in 2.04%(59 children). 2. The prevalence of hematuria detected with Hema-combistix was higher in female children as 2.66% among 1,355 children, compared to 1.37% among 1,533 male children, which was ore prominent in the age 9 year-old group. The prevalence in female was higher than in male in all but 7 year-old age group. 3. The prevalence of microscopic hematuria was higher in female children as 1.40% compared to 0.52% in male. The prevalence was higher in female children in all but 7 year-old age group. 4. The correlation of tests of hematuria between Hema-combistix and microscopcy showed 85.2% in sensitivity and 59.0% in specificity. And there showed a statistically significant difference in the prevalence rates detected as above one positive in the both tests. 5. The prevalence of proteinuria was higher in female children as 2.8%, compared to 1.37% in male, which was more prominent in the 11 year-old age group. The age prevalence of proteinuria showed increasing frequency as age increases. The highest age prevalence was 1.94% in 12 year-old age group among males and 4.91% in 11 year-old age group among females. 6. The prevalence of co-existence of microscopic hematuria and proteinuria was 0.07%, which was noted in 2 cases in each 8 year and 10 year-old group. 7. Microscopic hematuria was present mostly in the range of one positive(5-20 RBC/HPF), which was prominent in female children. However, hematuria detected as above three positive (above 40 RBC/HPF) was found in male children. 8. Proteinuria was noted mostly in the range of one positive(30mg/dl) and the prevalence of proteinuria above 100mg/dl was 9.52% in males & 13.16% in females. And proteinuria above 300 mg/dl was noted in one male child.
Key Words: Asymptomatic hematuria, Asymptomatic proteinuria, School children, Urinary screening test


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