The natural course of microalbuminuria in insulin-dependent diabetes: a 10-year prospective study

Diabet Med. 1995 Jun;12(6):482-7. doi: 10.1111/j.1464-5491.1995.tb00528.x.

Abstract

The purpose of this study was to describe the clinical course in patients followed right from the onset of microalbuminuria to the development of diabetic nephropathy. A 10-year prospective follow-up of 209 consecutive normotensive insulin-dependent diabetic patients with normal urinary albumin excretion (UAE < 30 mg 24 h-1), age 34 (18-50) years and duration of diabetes 17 (10-30) years was performed. Twenty-four-hour urinary albumin excretion was measured every 4 months, glycated haemoglobin and supine blood pressure was measured annually. Two-hundred (96%) patients completed 10 (range 5-10) years follow-up. Twenty-nine (15%) patients developed persistent microalbuminuria (UAE 30-300 mg 24 h-1). Eight of these have progressed to nephropathy and one had died of diabetic nephropathy. Multiple stepwise logistic regression analysis demonstrated baseline urinary albumin excretion (p = 0.0016) and glycated haemoglobin (p = 0.0014) but not blood pressure as predictors of development of microalbuminuria within the following 10 years. The median annual increase in urinary albumin excretion was 27 (range 17-65) % in the 29 patients developing microalbuminuria. The median duration from onset of microalbuminuria to development of nephropathy was 7 years. The prevalence of patients receiving antihypertensive treatment (BP > 140/90 mmHg) increased from 10% at onset of microalbuminuria to 45% 4 years after onset of microalbuminuria. The prevalence of patients with proliferative retinopathy increased from 7% at onset of microalbuminuria to 28% 4 years after onset of microalbuminuria.(ABSTRACT TRUNCATED AT 250 WORDS)

Publication types

  • Clinical Trial

MeSH terms

  • Adolescent
  • Adult
  • Albuminuria / etiology
  • Albuminuria / physiopathology*
  • Diabetes Mellitus, Type 1 / complications
  • Diabetes Mellitus, Type 1 / urine*
  • Diabetic Nephropathies / etiology*
  • Diabetic Retinopathy / etiology
  • Female
  • Follow-Up Studies
  • Humans
  • Logistic Models
  • Male
  • Middle Aged
  • Prospective Studies
  • Risk Factors
  • Treatment Outcome