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. 2022 Oct;26(10):2030-2039.
doi: 10.1007/s10995-022-03480-9. Epub 2022 Jul 31.

Associations of Gestational Weight Gain with Perinatal Outcomes in Western Brazilian Amazon

Paola Soledad Mosquera  1 , Maíra Barreto Malta  1 , Ana Alice de Araújo Damasceno  1 , Paulo Augusto Ribeiro Neves  1   2 , Alicia Matijasevich  3 , Marly Augusto Cardoso  4 ; MINA-Brazil Study Group
Affiliations

Associations of Gestational Weight Gain with Perinatal Outcomes in Western Brazilian Amazon

Paola Soledad Mosquera et al. Matern Child Health J. 2022 Oct.

Abstract

Objective: To investigate the association between gestational weight gain (GWG) and perinatal outcomes in pregnant Amazonian women.

Methods: Data from 1305 mother-child pairs from the MINA-Brazil population-based birth cohort study were used. GWG was classified according to two methods, the Institute of Medicine (IOM) guidelines and INTERGROWTH-21st standards. Poisson and linear regression analyses were conducted to evaluate associations with perinatal outcomes.

Results: Following IOM guidelines (n = 1305), the rates of insufficient and excessive GWG were found to be similar (32%). Excessive GWG was associated with higher new-born birthweight (BW) z-scores; increased risks of macrosomia, large for gestational age (LGA), and caesarean delivery; and lower risks of low birthweight (LBW) and being small for gestational age (SGA). Insufficient GWG was associated with lower new-born BW z-scores. Among women with normal pre-pregnancy body mass indices (BMIs, n = 658), inappropriate GWG was high following both methods (IOM: 41.2% insufficient, 24.8% excessive; INTERGROWTH-21st: 25.2% below - 1 z-score, 16.9% above 1 z-score). Both methods also indicated that new-borns of women with excessive GWG had higher BW z-scores and increased risk of macrosomia and LGA. Women with GWG below the INTERGROWTH-21st standards were more likely to deliver an infant SGA and with lower BW z-scores.

Conclusions: Inappropriate GWG remains a health concern irrespective of the method used to classify weight gain. GWG above the recommendations of both methods and below the INTERGROWTH-21st standard was associated with adverse perinatal outcomes. Therefore, INTERGROWTH-21st standards seem to be a better fit for healthy women in this population.

Keywords: Gestational weight gain; Guidelines adherence; INTERGROWTH-21st standards; Institute of Medicine; Perinatal outcomes.

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