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Arch Dis Child 1998;78:518-523 ( June )

Development and progression of microalbuminuria in a clinic sample of patients with insulin dependent diabetes mellitus

C A Jones,a G P Leese,b S Kerr,a K Bestwick,a D I Isherwood,a J P Vora,b D A Hughes,a C Smitha

a Royal Liverpool Children's Hospital NHS Trust, Liverpool L7 7DG, UK, b Royal Liverpool University Hospital, Liverpool L7 8XP, UK

Correspondence to: Dr C A Jones, Royal Manchester Children's Hospital, Hospital Road, Pendlebury, Manchester M27 4HA, UK.


Accepted 21 January 1998

The evolution of abnormal albumin excretion and its association with suggested risk factors were studied in 233 children with insulin dependent diabetes mellitus (IDDM) attending a single paediatric diabetic clinic over an eight year period. Yearly albumin:creatinine ratios (ACR; measured in mg/mmol) in early morning urine samples, glycated haemoglobin (HbA1c), and blood pressure were recorded. Thirty four (14.5%) children had a persistently raised ACR (ACR >=  2.5 mg/mmol on at least three consecutive occasions) and 21 (9%) had an intermittently raised ACR (ACR >=  2.5 mg/mmol on at least two occasions). Factors associated with a persistently raised ACR compared with normal albuminuria in IDDM included longer duration of diabetes, raised median HbA1c during the first five years after diagnosis, and final age adjusted systolic and diastolic blood pressure represented as standard deviation scores. The onset of persistently raised ACR in 13 of 34 children was before puberty and in 23 of 34 children it was within the first four years of diagnosis. The cross sectional prevalence of raised ACR was 12.9% at one year, 18.3% at five years, and 33% at 10 years after diagnosis. Raised ACR occurs frequently before puberty and in the early stages of childhood diabetes.

Key messages

  • The cumulative prevalence of persistently raised albumin:creatinine ratios over 8.5 years was 14.5%.
  • The onset of persistent microalbuminuria may occur before puberty and during the first four years after diagnosis.
  • Persistent microalbuminuria was associated with increasing duration of diabetes, poorer glycaemic control, and increased blood pressure.
  • We recommend the routine monitoring of albumin:creatinine ratios in early morning urine in all children with insulin dependent diabetes.



Keywords: microalbuminuria; insulin dependent diabetes mellitus; screening

© 1998 by Archives of Disease in Childhood


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