title: Prevalence and risk factors for diabetic microvascular complications in newly diagnosed type II diabetes mellitus. Sankara Nethralaya Diabetic Retinopathy Epidemiology and Molecular Genetic Study (SN-DREAMS, report 27).
abstract: OBJECTIVE
  The aims of this study were to report the prevalence of various microvascular complications and to identify the various clinical and biochemical characteristics related to these complications in subjects with newly diagnosed type II diabetes.
  
  
  METHODS
  Of the 5999 subjects enumerated, 1414 subjects with diabetes (both known and newly diagnosed) were analyzed for the study. Among the diabetic subjects, 248 (17.5%) were newly diagnosed with diabetes and the remaining had history of diabetes. All subjects underwent a detailed standard evaluation to detect diabetic retinopathy (fundus photography), neuropathy (vibration pressure threshold), and nephropathy (microalbuminuria).
  
  
  RESULTS
  The prevalence of any form of microvascular complication was 30.2% (95% confidence interval [CI]=24.5-35.9). The prevalence of diabetic retinopathy was 4.8%, and that of diabetic nephropathy and neuropathy was 10.5%. The risk factors for developing any form of microvascular complication were increasing age (odds ratio [OR]=1.07, 95% CI=1.04-1.11, P<.0001), increasing systolic blood pressure (OR=1.03, 95% CI=1.01-1.06, P=.001), and increasing hemoglobin (OR=1.39, 95% CI=1.09-1.79, P=.011). The risk factors for diabetic retinopathy and diabetic nephropathy were increasing systolic blood pressure (OR=1.06 [P=.001] for retinopathy and OR=1.04 [P=.012] for nephropathy) and increasing hemoglobin (OR=2.20 [P=.007] for retinopathy and OR=1.57 [P=.023] for nephropathy). The risk factor for diabetic neuropathy was increasing age (OR=1.12, P<.0001).
  
  
  CONCLUSIONS
  Nearly one third of the newly diagnosed type II diabetes subjects had some form of microvascular complication; nephropathy, and neuropathy being commoner than retinopathy.
authors.affiliation: Shri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Chennai 600 006, Tamil Nadu, India.
authors.forename: Rajiv
authors.initials: R
authors.lastname: Raman
authors.forename: Aditi
authors.initials: A
authors.lastname: Gupta
authors.forename: Suganeswari
authors.initials: S
authors.lastname: Krishna
authors.forename: Vaitheeswaran
authors.initials: V
authors.lastname: Kulothungan
authors.forename: Tarun
authors.initials: T
authors.lastname: Sharma
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000419:Albuminuria / Q000453:epidemiology; D003924:Diabetes Mellitus, Type 2 / Q000150:complications / Q000453:epidemiology*; D003928:Diabetic Nephropathies / Q000453:epidemiology; D003929:Diabetic Neuropathies / Q000453:epidemiology; D003930:Diabetic Retinopathy / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D055806:Microvessels; D008875:Middle Aged; D015995:Prevalence; D012307:Risk Factors