title: [Utility of adequate values of an occasional fasting and postprandial glycemia in the chronic control of the type-2 diabetic patient].
abstract: OBJECTIVE
  To identify the sensitivity and specificity of occasional fast and postprandial glycemias as for a chronic control of the type-2-diabetic patient. MATERIAL AND METHODS.
  
  
  METHODS
  Descriptive, cross-sectional in 850 type-2-diabetic adults patients from the outpatient clinic of the Zone General Hospital and Family Medicine 9 in Ciudad Guzmán, Jalisco, Mexico, without insulin therapy, with creatinine values lower than 132.6 micromol/L (1.5 mg/ dL), and glycemia over 4.4 mmol/L (80 mg/dL).
  
  
  METHODS
  Blood extraction was carried out to determine fasting glycemia, cholesterol, triglycerides and glycosilated haemoglobin (HbA1c). After that, they were given a breakfast of 320 Kcal, and new blood samples were taken for postprandial glycemia. The statistical programs used were Epi-Info 2000, Epi-Dat.
  
  
  RESULTS
  Age, 59. +/- 11.2 years old; antiquity in diabetic diagnosis, 4.8 +/- 6.7 years; fasting glycemia average, 9.9 +/- 4.4 mmol/L (178.6 +/- 79.4 mg/ dL); postprandial glycemia, 14 +/- 6.1 mmol/L (251.6 +/- 109.6 mg/dL); HbA1c, 9.3 +/- 3.4 %. An acceptable fasting glycemia presents an adequate chronic control sensitivity of 44.8 %, with a specificity of 82.1 %. On the other hand, a postprandial glycemia presented a sensitivity of 46.5 % and specificity of 77.3 %; both acceptable parameters have a sentivity of 31.4 % and specificity of 83.3 % to identify a good control of HbA1c.
  
  
  CONCLUSIONS
  Random parameters present very little sensitivity to the diagnosis of a good chronic control of the patient; however, as screening tests, they show an acceptable specificity for the HbA1c poor values.
authors.affiliation: Jefe de Educación e Investigación, Hospital General de Zona con Medicina Familiar 9, Instituto Mexicano del Seguro Social. rafo201159@yahoo.com.mx
authors.forename: Rafael
authors.initials: R
authors.lastname: Bustos-Saldaña
authors.forename: Alejandro
authors.initials: A
authors.lastname: Bustos-Mora
authors.forename: Rafael
authors.initials: R
authors.lastname: Bustos-Mora
authors.forename: Maria de la Luz
authors.initials: Mde L
authors.lastname: Solís-Ruiz
authors.forename: Maria de los Angeles
authors.initials: Mde L
authors.lastname: Chávez-Chávez
authors.forename: Leticia Margarita
authors.initials: LM
authors.lastname: Aguilar-Núñez
mesh_terms: D001786:Blood Glucose / Q000032:analysis*; D003430:Cross-Sectional Studies; D003924:Diabetes Mellitus, Type 2 / Q000097:blood* / Q000517:prevention & control*; D005215:Fasting; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D019518:Postprandial Period; D012680:Sensitivity and Specificity
chemical_list: D001786:Blood Glucose