ABSTRACT
Objective
This retrospective study aimed to characterize trimester-specific and total gestational
weight gain (GWG) over the course of two consecutive pregnancies, as well as maternal
determinants associated with interpregnancy weight change (IPWC) and excessive GWG
in the second pregnancy.
Methods
We analyzed the electronic medical records of women who delivered their first two
consecutive infants at term between 2001 and 2017.
Results
Weight gain trajectories differed between the first and second pregnancy for the 1497
women included in this study, with lower second- and third-trimester weight gain in
the second pregnancy. Respectively, 53% and 41% of women had excessive GWG in the
first and second pregnancies, with a higher proportion of excessive GWG found in women
with a higher body mass index (BMI). Most women (55%) experienced interpregnancy weight
gain. Maternal determinants of IPWC were BMI before first pregnancy, first-trimester
and total GWG in the first pregnancy, and interpregnancy interval (P < 0.0001). Maternal risk factors associated with excessive GWG in the second pregnancy
were excessive total GWG in the first pregnancy (OR 6.23; 95% CI 4.67–8.32), interpregnancy
weight gain (OR 1.58; 95% CI 1.19–2.09), and interpregnancy interval (OR 1.18; 95%
CI 1.07–1.29) as well as BMI before the second pregnancy (OR 1.04, 95% CI 1.02–1.07).
Conclusion
Weight gain trajectories differ between consecutive pregnancies. GWG in the first
pregnancy is a key determinant for IPWC and GWG in the second pregnancy.
RÉSUMÉ
Objectif
Cette étude rétrospective visait à caractériser le gain de poids gestationnel (GPG)
total et par trimestre pendant deux grossesses consécutives, ainsi que les facteurs
maternels associés à la variation du poids entre les grossesses et au GPG excessif
à la deuxième grossesse.
Méthodologie
Nous avons analysé les dossiers médicaux électroniques de femmes qui ont accouché
de leurs deux premiers nouveaux-nés consécutifs à terme entre 2001 et 2017.
Resultats
Les trajectoires de gain de poids différaient entre la première et la deuxième grossesse
pour les 1497 femmes incluses dans l’étude, les trajectoires de gain de poids étant
moins prononcées aux deuxième et troisième trimestres lors de la deuxième grossesse.
Respectivement, 53 % et 41 % des femmes avaient un GPG excessif lors de la première
et de la deuxième grossesse, la proportion de GPG excessif étant plus importante chez
les femmes avec un indice de masse corporelle (IMC) élevé. La plupart des femmes (55 %)
ont gagné du poids entre les grossesses. Les facteurs maternels déterminant la variation
du poids entre les grossesses étaient l'IMC avant la première grossesse, le GPG au
premier trimestre et total pendant la première grossesse et l'intervalle entre les
grossesses (P < 0,0001). Les facteurs de risque maternels associés à un GPG excessif pendant la
deuxième grossesse étaient le GPG total excessif à la première grossesse (RC : 6,23;
IC à 95 % : 4,67–8,32), le gain de poids entre les grossesses (RC : 1,58; IC à 95 % :
1,19–2,09), l'intervalle entre les grossesses (RC : 1,18; IC à 95 % : 1,07–1,29) ainsi
que l'IMC avant la deuxième grossesse (RC : 1,04; IC à 95 % : 1,02–1,07).
Conclusion
Les trajectoires de gain de poids diffèrent entre les grossesses consécutives. Le
GPG à la première grossesse est un facteur important de la variation du poids entre
les grossesses et du GPG excessif à la deuxième grossesse.
Keywords
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Article info
Publication history
Published online: December 23, 2020
Footnotes
Disclosures: The authors declare they have nothing to disclose.
All authors have indicated they meet the journal's requirements for authorship.
Identification
Copyright
© 2020 The Society of Obstetricians and Gynaecologists of Canada/La Société des obstétriciens et gynécologues du Canada. Published by Elsevier Inc. All rights reserved.
