Pre-pregnancy body mass index classification and weight gain according to new brazilian protocols and their association with gestational diabetes mellitus

Key Points

• The study investigates the link between weight gain during pregnancy and the risk of developing gestational diabetes mellitus based on new Brazilian guidelines.
• Cross-sectional design
• Sample of 104 pregnant women
• Matched pairs with and without gestational diabetes
• Assessment of weight gain according to Brazilian protocols
• Higher weight gain is associated with an increased risk of gestational diabetes
• Differences in weight gain patterns observed between groups
• Pre-pregnancy body mass index impacts gestational diabetes risk