Abstract
Objective: Weight change between pregnancies was examined to determine if there were an association between weight gain (or loss) and delivery by cesarean section, gestational diabetes or pregnancy-induced hypertension.
Methods: A cohort study was conducted which included Nova Scotia residents with two or more singleton deliveries between 1988 and 1996. Weight change between pregnancies was calculated as the difference in weight from a woman’s initial pre-pregnancy weight and the pre-pregnancy weight recorded from her final recorded pregnancy.
Results: Weight change between pregnancies was examined in 19,932 women. Women in the highest weight gain category were at an increased risk for developing gestational diabetes (RR = 1.59, 95% CI 1.22 – 2.08), independent of their weight prior to the final pregnancy, and other confounders. Weight gain (or loss) between pregnancies was not associated with the other outcomes.
Interpretation: Weight gain between pregnancy is an independent risk factor for gestational diabetes.
Résumé
Objectif: Les changements de poids entre les grossesses ont été étudiés pour vérifier s’il existait une association entre le gain (ou la perte) de poids et les accouchements par césarienne, le diabète gestationnel ou l’hypertension induite par la grossesse.
Méthodes: Il s’agit d’une étude de cohorte incluant les résidentes de la Nouvelle-Écosse ayant eu deux accouchements ou plus entre 1988 et 1996. Le changement de poids entre les grossesses a été calculé comme la différence entre le poids pré-grossesse initial et le poids pré-grossesse du dernier accouchement.
Résultats: Les changements de poids ont été evalués chez 19 932 femmes. Les femmes avec un gain élevé de poids ont un risque accru de diabète gestationnel (RR=1.59, IC 95 % 1.22–2.08), indépendamment de leur poids pré-grossesse lors de leur dernier accouchement, et des autres facteurs confondants. Le gain (ou la perte) de poids entre les grossesses n’etait pas associé aux autres événements étudiés.
Interprétation: Le gain de poids entre les grossesses est un facteur de risque indépendant pour le diabète gestationnel.
References
- 1.Billewicz WZ, Thomson AM. Body weight in parous women. Br J Prev Soc Med. 1970;24:97–104. doi: 10.1136/jech.24.2.97. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 2.Beazely JM, Swinhoe JR. Body weight in parous women: Is there any alteration between successive pregnancies? Acta Obstet Gynecol Scand. 1979;58:45–47. doi: 10.3109/00016347909154912. [DOI] [PubMed] [Google Scholar]
- 3.Williamson DJ, Madans J, Pamuk E, et al. A prospective study of childbearing and 10-year weight gain in US white women 25 to 45 years of age. Int J Obes. 1994;18:561–69. [PubMed] [Google Scholar]
- 4.Edwards LE, Hellerstedt WL, Alton IR, et al. Pregnancy complications and birth outcomes in obese and normal-weight women: Effects of ges-tational weight change. Obstet Gynecol. 1996;87(3):389–94. doi: 10.1016/0029-7844(95)00446-7. [DOI] [PubMed] [Google Scholar]
- 5.Samra JS, Tang LCH, Obhrai MS. Changes in body weight between consecutive pregnancies. Lancet. 1988;2:1420–21. doi: 10.1016/S0140-6736(88)90606-X. [DOI] [PubMed] [Google Scholar]
- 6.Ekblad U, Grenman S. Maternal weight, weight gain during pregnancy and pregnancy outcome. Int J Gynaecol Obstet. 1992;39:277–83. doi: 10.1016/0020-7292(92)90258-K. [DOI] [PubMed] [Google Scholar]
- 7.Tilton Z, Hodgson MI, Donoso E, et al. Nutrition. 1989. Complications and outcome of pregnancy in obese women. [PubMed] [Google Scholar]
- 8.Witter FR, Caulfield LE, Stoltzfus RJ. Influence of maternal anthropometric status and birth weight on the risk of cesarean delivery. Obstet Gynecol. 1995;85(6):947–51. doi: 10.1016/0029-7844(95)00082-3. [DOI] [PubMed] [Google Scholar]
- 9.Oats JN, Abell DA, Andersen HM, Beischer NA. Obesity in pregnancy. Comp Ther. 1983;9(4):51–55. [PubMed] [Google Scholar]
- 10.Rössner S. Obesity and pregnancy. In: Bray GA, Bouchard C, James WPT, editors. Handbook of Obesity. New York: Marcel Dekker, Inc; 1998. [Google Scholar]
- 11.Björntorp P. Etiology of the metabolic syndrome. In: Bray GA, Bouchard C, James WPT, editors. Handbook of Obesity. New York: Marcel Dekker, Inc; 1998. [Google Scholar]