title: Glycohemoglobin as a screening test for gestational diabetes.
abstract: This study evaluated the feasibility of utilizing hemoglobin A1c as a screening test for gestational diabetes. We compared this test in 82 women in the third trimester of pregnancy to a glucose tolerance test in which a glucose load of 100 gm was used. At its best index of correlation, hemoglobin A1c at 7% is concordant with the glucose tolerance test in 69% of the cases, false positive in 41%, and false negative in 26%. Though the two procedures correlate very well, the high incidence of false negative and positive for hemoglobin A1c make this test inadequate as a screening procedure for gestational diabetes.
mesh_terms: D003920:Diabetes Mellitus / Q000175:diagnosis*; D005260:Female; D005951:Glucose Tolerance Test; D006442:Glycated Hemoglobin / Q000032:analysis*; D006801:Humans; D011247:Pregnancy; D011254:Pregnancy in Diabetics; D011446:Prospective Studies
chemical_list: D006442:Glycated Hemoglobin