The Influence of Age on Glucose Tolerance During Pregnancy

The 75g GTT was performed on 259 pregnant women to clarify the relationship between age and glucose tolerance during normal pregnancy. Glucose tolerance in healthy women during late pregnancy gradually decreased with advancing age. In pregnant women over 30 years of age, the average plasma glucose levels after glucose loading were significantly higher than the levels at 20-24 years of age. These findings will be useful in the determination of screening criteria for gestational diabetes mellitus.