Interpregnancy weight change and risk of preterm delivery

Obesity
Eduardo Villamor, Sven Cnattingius

Abstract

Prepregnant weight gain increases risk of obstetric complications, but its effect on preterm delivery is unknown. This study aimed to investigate the associations between change in body mass index (BMI) from first to second pregnancies and risk of preterm delivery in the second pregnancy according to the type and severity of preterm delivery. A nationwide cohort study was conducted in 465,836 Swedish women with their first two consecutive singleton live births between 1992 and 2012. Rates of very (22-31 gestational weeks) and moderately (32-36 gestational weeks) preterm delivery in the second pregnancy, classified as spontaneous or medically indicated, were compared between categories of interpregnancy BMI change. Among women with first pregnancy BMI < 25, BMI gain ≥ 4 kg/m(2) and BMI loss > 2 kg/m(2) were related to 24% (95% CI, 5-46%) and 18% (95% CI, 5-33%) higher rates of spontaneous moderately preterm delivery, respectively. BMI gain ≥ 4 kg/m(2) was related to increased risk of medically indicated very preterm delivery. Weight loss was associated with reduced rates of medically indicated moderately preterm delivery among women with BMI ≥ 25. High weight gain or loss in normal-weight women is associated with spontaneous mod...Continue Reading

References

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Citations

May 4, 2018·Journal of Human Lactation : Official Journal of International Lactation Consultant Association·Alexandra L MacMillan Uribe, Beth H Olson
Aug 2, 2017·Public Health Nursing·Lorraine O WalkerSherry Hendrickson
Jul 28, 2018·The International Journal of Eating Disorders·Neda Razaz, Sven Cnattingius
Nov 22, 2019·Obesity Reviews : an Official Journal of the International Association for the Study of Obesity·Yvon E G TimmermansAnita C E Vreugdenhil
Jul 7, 2020·The Proceedings of the Nutrition Society·Nisreen A AlwanNida Ziauddeen
Apr 7, 2019·BMC Pregnancy and Childbirth·Renata H BenjaminLaura E Mitchell
May 10, 2018·Deutsches Ärzteblatt International·Johannes StubertWolfgang Janni
Oct 26, 2021·Obesity Reviews : an Official Journal of the International Association for the Study of Obesity·Taniya S NagpalNicola Heslehurst
Jun 11, 2020·American Journal of Perinatology·Maya TabetJen Jen Chang

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