ArticleBMC pregnancy and childbirth2016
Are early first trimester weights valid proxies for preconception weight?
Article in BMC pregnancy and childbirth, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01131117 (Fetal Programming of Obesity), which is not on this map. Cited by 45 papers, 2 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Fetal Programming of Obesity
Who cites it
45 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Pooled it
- Attenuating Pregnancy Weight Gain-What Works and Why: A Systematic Review and Meta-Analysis.Nutrients · 2018Pooled it
- A randomized digital behavioral intervention for prenatal and postpartum weight outcomes in women with overweight or obesity: the GROWell trial.BMC pregnancy and childbirth · 2026Trial
- Effect of nutrition intervention coupled with healthy dietary advice on the nutritional status of pregnant women in the northern zone of the Sidama region, Ethiopia: a multilevel, cluster randomized controlled trial.Journal of health, population, and nutrition · 2025Trial
- A Postpartum Weight Loss-focused Stepped-care Intervention in a Military Population: A Randomized Controlled Trial.Annals of behavioral medicine : a publication of the Society of Behavioral Medicine · 2023Trial
- Changes in self-reported and accelerometer-measured physical activity among pregnant TRICARE Beneficiaries.BMC public health · 2022Trial
- Postpartum weight change one year after delivery and associated factors among women in Puducherry, South India: Findings from the JANMAM cohort.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026Article
- Exploring cardiometabolic markers in adverse pregnancy outcomes: insights from the GROWell study.Research square · 2026Article
- Prenatal Exposure to Mixtures of Nonpersistent Endocrine-Disrupting Chemicals and Angiogenic Biomarkers, Placental Function, and Fetal Growth.Environmental science & technology · 2026Article
- Article
- Organophosphate ester exposure in pregnancy, gestational weight gain, and postpartum body composition in a U.S.-based longitudinal pregnancy cohort.Environmental health : a global access science source · 2025Article
- Predictors of gestational weight gain in western India: Findings from a longitudinal study across rural and urban cohorts.PloS one · 2025Article
- Urinary mycoestrogens and gestational weight gain in the UPSIDE pregnancy cohort.Environmental health : a global access science source · 2024Article
- Per- and polyfluoroalkyl substances, gestational weight gain, postpartum weight retention and body composition in the UPSIDE cohort.Environmental health : a global access science source · 2023Article
- Interactions between maternal health and placental morphology on neonate body composition.Global pediatrics · 2023Article
- Association between 1BMC nutrition · 2022Article
- Maternal Body Mass Index Is Associated with Profile Variation in Circulating MicroRNAs at First Trimester of Pregnancy.Biomedicines · 2022Article
- Infant intakes of human milk branched chain amino acids are negatively associated with infant growth and influenced by maternal body mass index.Pediatric obesity · 2022Article
- Goals for Reaching Optimal Wellness (GROWell): A clinical trial protocol of a digital dietary intervention for pregnant and postpartum people with prenatal overweight or obesity.Contemporary clinical trials · 2022Article
- Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAn accurate estimate of preconception weight is necessary for providing a gestational weight gain range based on the Institute of Medicine's guidelines; however, an accurate and proximal preconception weight is not available for most women. We examined the validity of first trimester weights for estimating preconception body mass index category.
methodsUnder identical measurement conditions, preconception weight and two first trimester weights (i.e., 4-10 and 12 weeks gestation) were obtained (n = 43).
resultsThe 4-10 week and the 12 week weight correctly classified 95 and 91% women, respectively. Mean weight changes were relatively small overall (M = 0.74 ± 1.99 kg at 4-10 weeks and M = 1.02 ± 2.46 at 12 weeks). There was a significant difference in mean weight gain by body mass index category at 4-10 weeks (-0.09 ± 1.86 kg for normal weight participants vs. 1.61 + 1.76 kg for overweight/obese participants, p = 0.01), but not at 12 weeks (0.53 ± 2.29 kg for normal weight participants vs. 1.54 ± 2.58 kg for overweight/obese participants).
conclusionsAssigning gestational weight gain guidelines based on an early first trimester weight resulted in 5-9% of women being misclassified depending on the gestational week the weight was obtained. Thus, most women are correctly classified based on a first trimester weight, particularly an early first trimester weight, although it is possible that modeling strategies could be developed to further improve estimates of preconception body mass index category.
trial registrationClinicaltrials.gov # NCT01131117 , registered May 25, 2010.
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