The relationship between previous breastfeeding duration and intensity with the glucose tolerance test result
The relationship between breastfeeding duration and intensity with the glucose levels from the OGTT at the subsequent pregnancy were also analysed. After adjusting for confounders (medical treatment of GDM in first pregnancy, BMI, maternal age at second pregnancy, ethnicity), breastfeeding greater than six months was associated with a lower mean OGTT at 1 h (P = 0.01) and women in the high intensity breastfeeding group had a lower 2 h blood glucose result (P = 0.01) with a mean decrease of 0.66 mmol/L (Table 4).