Macfarlane C M, Tsakalakos N, Taljaard J J
S Afr Med J. 1985 Aug 31;68(5):310-2.
A single measurement of total maternal glycosylated haemoglobin (Hb A1) in the late third trimester of a diabetic pregnancy is of limited value in assessing diabetic control. There was no significant correlation between maternal Hb A1 values and neonatal C-peptide values or birth-weight ratios. An isolated Hb A1 measurement is not sufficiently sensitive to monitor the control of diabetes during pregnancy nor is it useful in predicting perinatal outcome.