title: Estimated glomerular filtration rate in patients with type 2 diabetes mellitus.
abstract: OBJECTIVE
  to estimate the glomerular filtration using the Cockcroft-Gault (CG), Modification of Diet in Renal Disease (MDRD), and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations, and serum creatinine in the screening of reduced renal function in patients with type two diabetes (T2DM) enrolled in the Family Health Strategy (ESF, Brazilian federal health-care program).
  
  
  METHODS
  a cross-sectional descriptive and analytical study was conducted. The protocol consisted of sociodemographics, physical examination and biochemical tests. Renal function was analyzed through serum creatinine and glomerular filtration rate (GFR) estimated according to the CG, MDRD and CKD-EPI equations, available on the websites of the Brazilian Nephrology Society (SBN) and the (NKF).
  
  
  RESULTS
  146 patients aged 60.9 ± 8.9 years were evaluated; 64.4% were women. The prevalence of serum creatinine >1.2 mg/dL was 18.5% and GFR < 60 mL/min/1.73 m2 totaled 25.3, 36.3 and 34.2% when evaluated by the equations CG, MDRD and CKD-EPI, respectively. Diabetic patients with reduced renal function were older, had long-term T2DM diagnosis, higher systolic blood pressure and higher levels of fasting glucose, compared to diabetics with normal renal function. Creatinine showed strong negative correlation with the glomerular filtration rate estimated using CG, MDRD and CKD-EPI (-0.64, -0.87, -0.89) equations, respectively.
  
  
  CONCLUSIONS
  the prevalence of individuals with reduced renal function based on serum creatinine was lower, reinforcing the need to follow the recommendations of the SBN and the National Kidney Disease Education Program (NKDEP) in estimating the value of the glomerular filtration rate as a complement to the results of serum creatinine to better assess the renal function of patients.
authors: Regional University of the Northwest of Rio Grande dos Sul State, Ijuí, RS, Brazil.
authors: Paula Caitano
authors: PC
authors: Fontela
authors: Regional University of the Northwest of Rio Grande do Sul State, Ijuí, RS, Brazil.
authors: Eliane Roseli
authors: ER
authors: Winkelmann
authors: Clinical Analysis Laboratory, UNIJUÍ, Ijuí, RS, Brazil.
authors: Joice Nedel
authors: JN
authors: Ott
authors: Ijuí Charity Hospital, Ijuí, RS, Brazil.
authors: Douglas Prestes
authors: DP
authors: Uggeri
mesh_terms: D000368:Aged; D001786:Blood Glucose / Q000032:analysis; D001794:Blood Pressure / Q000502:physiology; D015992:Body Mass Index; D001938:Brazil / Q000453:epidemiology; D003404:Creatinine / Q000097:blood*; D003430:Cross-Sectional Studies; D003924:Diabetes Mellitus, Type 2 / Q000097:blood* / Q000503:physiopathology*; D005260:Female; D005919:Glomerular Filtration Rate / Q000502:physiology*; D006801:Humans; D007674:Kidney Diseases / Q000175:diagnosis / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D015995:Prevalence
chemical_list: D001786:Blood Glucose; D003404:Creatinine