Evidence map›Paper›PMID 36639806›Full record

ArticleArchives of public health = Archives belges de sante publique2023

Pre-pregnancy body mass index has greater influence on newborn weight and perinatal outcome than weight control during pregnancy in obese women.

Jin Zhang, Rui Zhang, Jingjing Chi, Ya Li, Wenpei Bai

Open access · goldAbstract read
In one paragraph

Article in Archives of public health = Archives belges de sante publique, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
5.6field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 19 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Jin ZhangDepartment of Obstetrics and Gynaecology, Beijing Shijitan Hospital, Capital Medical University, Haidian, Beijing, 100038, China.
Rui ZhangDepartment of Obstetrics and Gynaecology, Beijing Shijitan Hospital, Capital Medical University, Haidian, Beijing, 100038, China.
Jingjing ChiDepartment of Obstetrics and Gynaecology, Beijing Shijitan Hospital, Capital Medical University, Haidian, Beijing, 100038, China.
Ya LiDepartment of Obstetrics and Gynaecology, Beijing Shijitan Hospital, Capital Medical University, Haidian, Beijing, 100038, China.
Wenpei BaiDepartment of Obstetrics and Gynaecology, Beijing Shijitan Hospital, Capital Medical University, Haidian, Beijing, 100038, China. baiwp@bjsjth.cn.
Beijing Shijitan Hospital · CNCapital Medical University · CN

Funding

Beijing Haidian District Health Development Research and Cultivation Program HP2021-05-50602Youth Foundation of Beijing Shijitan Hospital, Capital Medical University 2019-q20
6 · The paper itself

Abstract

backgroundThe pre-pregnancy weight and gestational weight gain (GWG) are closely related to perinatal maternal and infant complications, but the relationship between pre-pregnancy weight and GWG and the pattern of interaction have not been reported. This study investigated the influence of weight control during pregnancy on the perinatal maternal and infant outcomes.

methodsA total of 835 singleton pregnant women who were hospitalized between January 2018 and December 2018 were retrospectively included in this study and divided into two groups: the diet guidance (DG) group (n = 167) and the control group (n = 668). The pre-pregnancy body mass index (BMI), GWG, and perinatal outcomes of the women and infants were determined in two groups.

resultsThe dietary modification and reasonable exercise during pregnancy effectively reduced the GWG, and even some women with pre-pregnancy obesity achieved weight loss during pregnancy. The GWG in the DG group was significantly lower than in the control group, especially in the second and third trimesters. GWG was positively related to birth weight. The birth weight in the DG group was significantly lower than in the control group when their mothers had similar GWG. In women with pre-pregnancy obesity, GWG seemed to be negatively related to birth weight. However, after adjusting the mean BMI, the pre-pregnancy BMI and GWG were positively related to the birth weight. Compared with the control group, the incidences of dystocia, postpartum hemorrhage, macrosomia, small for gestational age infants and neonatal complications significantly reduced in the DG group, and the preterm birth rate was comparable between two groups. Some women with pre-pregnancy obesity lose weight during pregnancy, but there was no premature birth or small for gestational age infant. The incidences of macrosomia, postpartum hemorrhage, dystocia, cesarean section and gestational diabetes increased significantly with the increase of pre-pregnancy BMI.

conclusionFor women with increased pre-pregnancy BMI, strict weight control is required to reduce obesity-related complications of the mother and infant. The weight control in the second and third trimesters is especially important and most likely to prevent GWG. Compared with GWG, pre-pregnancy BMI has greater influence on the birth weight and maternal and infant complications, and may even compromise the benefits of weight control during pregnancy. Thus, weight control is recommended before pregnancy.

Indexed as

Birth weightBody mass index (BMI)Gestational weight gain (GWG)ObesityPregnancy

Identifiers

PMID36639806
PMCPMC9838058
OpenAlexW4316041102

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.