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Clinical Trial
. 2018 May 8;11(1):282.
doi: 10.1186/s13104-018-3396-4.

Preeclampsia and gestational weight gain in the Norwegian Fit for Delivery trial

E R Hillesund  1 , S Seland  2   3 , E Bere  2 , L R Sagedal  3   4 , M K Torstveit  2 , H Lohne-Seiler  2 , I Vistad  3   4 , N C Øverby  2
Affiliations
Clinical Trial

Preeclampsia and gestational weight gain in the Norwegian Fit for Delivery trial

E R Hillesund et al. BMC Res Notes. .

Abstract

Objective: Excessive gestational weight gain is linked to risk of preeclampsia, but it is not clear whether the association is causal. The purpose of this paper was to examine gestational weight gain in the Norwegian Fit for Delivery study among women who developed preeclampsia compared to those who did not, and to further explore associations between weight gain and preeclampsia by including data on body composition (bioimpedance) assessed in the last trimester of pregnancy.

Results: A total of 550 women were eligible for the study. Women who developed preeclampsia gained more weight than women who did not (difference 3.7 kg, p = 0.004), with a 3.5 kg difference in total body water observed in week 36 (p = 0.040). Adjusted for age, education, pre-pregnancy body mass index (BMI), randomization, and fat mass, a one kg increase in GWG was associated with 1.3 times higher odds of preeclampsia (OR: 1.31, 95% CI 1.15-1.49, p < 0.001). An independent inverse association between fat mass in week 36 and odds of preeclampsia was observed (OR: 0.79, 95% CI 0.68-0.92, p = 0.002). Given the observed difference in total body water, these findings point to excess fluid as the component driving the association between gestational weight gain and preeclampsia in the present study. Trial registration The NFFD trial has the Clinical Trials registration: clinicaltrial.gov NCT0100168.

Trial registration: ClinicalTrials.gov NCT01001689.

Keywords: Body composition; Fat mass; Gestational weight gain; Preeclampsia; Primipara.

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