title: [Comparison of fasting and 2 hours postprandial blood glucose in the control of patients with type 2 diabetes].
abstract: BACKGROUND
  Fasting glycemia is a questionable control test for subjects with diabetes mellitus. 2-h postprandial glycemia is an element that must be considered as complementary in controlling the disease.
  
  
  OBJECTIVE
  Compare usefulness of fasting glycemia and 2-h postprandial glycemia as control tests in patients with type 2 diabetes mellitus.
  
  
  METHODS
  Study of diagnostic test.
  
  
  METHODS
  112 patients were included in the study, age mean 59 +/- 10.9 and evolution of diagnosis 10.2 +/- 8.3 years. We calculated the mean of three fasting glycemias at the beginning of the study and three determinations of 2-h postprandial glycemia. The habitual drug administration was continued. Sensibility, specificity, predictive values, and precision of each measurement were calculated in relation to HbA1C as a Gold Standard.
  
  
  RESULTS
  Correlation of fasting glycemia was 0.74 p < 0.01, and correlation of postprandial glycemia was 0.79 p < 0.01. Fasting glycemia had a sensibility of 0.71 and a specificity of 98. 2-h postprandial glycemia had a sensibility of 0.79 and a specificity of 0.86. When combining fasting glycemia and postprandial glycemia, sensibility was 0.85 and specificity was 1.
  
  
  CONCLUSIONS
  2-h postprandial glycemia level is more precise than fasting glycemia. Both determinations used together increase usefulness in controlling blood glucose level when lacks hemoglobin A1C.
authors.forename: Román Eduardo
authors.initials: RE
authors.lastname: García Nava
authors.forename: Raymundo
authors.initials: R
authors.lastname: Rodríguez Moctezuma
authors.forename: Catarina
authors.initials: C
authors.lastname: Munguía Miranda
authors.forename: José Luis
authors.initials: JL
authors.lastname: Hernández Santiago
authors.forename: Ernesto
authors.initials: E
authors.lastname: Casas de la Torre
authors.forename: Marisela
authors.initials: M
authors.lastname: Martínez Bermúdez
authors.forename: Rosa María
authors.initials: RM
authors.lastname: Cabrera Ramírez
mesh_terms: D000328:Adult; D000368:Aged; D001786:Blood Glucose / Q000032:analysis*; D003924:Diabetes Mellitus, Type 2 / Q000097:blood*; D005215:Fasting; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D019518:Postprandial Period
chemical_list: D001786:Blood Glucose
vernacular_title: Comparación de la glucemia en ayuno y dos horas postprandial en el control de pacientes con diabetes tipo 2.