Interpregnancy Weight Change and Adverse Birth Outcomes: Cohort Study Using Brazil's Routine Register-Based Linked Data.

ABSTRACT: The effects of interpregnancy weight change (IPWC) on the risk of adverse birth outcomes in subsequent pregnancies are still not fully understood. Existing studies present conflicting results regarding the association between IPWC and preterm birth, while evidence of its relationship with low birth weight (LBW) or macrosomia is limited, particularly in low- and middle-income countries. This population-based longitudinal study used Brazil's routine register-based linked data from 2008 to 2015 to evaluate the association between IPWC and adverse birth outcomes in a subsequent pregnancy. Preterm birth, LBW, and macrosomia were compared across categories of IPWC between pregnancies (including changes in BMI unit, changes in BMI category, and percentage of weight change). Logistic and multinomi

SUBMITTER: Rocha AS 

PROVIDER: S-EPMC12454203 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature