What question did this study set out to answer?

The study investigates the link between weight gain during pregnancy and the risk of developing gestational diabetes mellitus based on new Brazilian guidelines.

February 26, 2026Revista Brasileira Ginecologia e Obstetrícia0 citationsOpen Access

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

LCLucas Almeida das ChagasUniversidade Federal de São Paulo LSLuiz Gonzaga Ribeiro SilvaUniversidade Federal de São Paulo RSRosângela Maria Lopes de SousaCentro Universitário do Maranhão

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

Abstract

Objective: This study investigated the association between gestational weight gain based on the new weight gain curve adopted by the Brazilian Ministry of Health for pregnant women and the risk of developing Gestational Diabetes Mellitus (GDM). Methods: Cross-sectional study was conducted with 104 pregnant women—52 with GDM and 52 without—matched for age, self-reported skin …

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