[Comparison of fasting and 2 hours postprandial blood glucose in the control of patients with type 2 diabetes].
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.
García Nava
Román Eduardo
RE
Rodríguez Moctezuma
Raymundo
R
Munguía Miranda
Catarina
C
Hernández Santiago
José Luis
JL
Casas de la Torre
Ernesto
E
Martínez Bermúdez
Marisela
M
Cabrera Ramírez
Rosa María
RM
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
D001786:Blood Glucose
Comparación de la glucemia en ayuno y dos horas postprandial en el control de pacientes con diabetes tipo 2.