Evidence map›Paper›PMID 31511664›Full record

ArticleScientific reports2019

Role of Body Mass Index and gestational weight gain on preterm birth and adverse perinatal outcomes.

Fabia Pigatti Silva, Renato T Souza, Jose G Cecatti, Renato Passini, Ricardo P Tedesco, Giuliane J Lajos, Marcelo L Nomura, Patricia M Rehder, Tabata Z Dias, Paulo F Oliveira and 2 more

Abstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

31 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

12 authors.

Fabia Pigatti SilvaDepartment of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.
Renato T SouzaDepartment of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.
Jose G CecattiDepartment of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil. cecatti@unicamp.br.ORCID http://orcid.org/0000-0003-1285-8445
Renato PassiniDepartment of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.
Ricardo P TedescoDepartment of Obstetrics and Gynecology, Jundiaí Medical School, Jundiaí, SP, Brazil.
Giuliane J LajosDepartment of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.
Marcelo L NomuraDepartment of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.
Patricia M RehderDepartment of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.
Tabata Z DiasDepartment of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.
Paulo F OliveiraUnit of Statistics, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, Brazil.
Cleide M SilvaUnit of Statistics, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, Brazil.
Brazilian Multicenter Study on Preterm Birth (EMIP) study group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The association of body mass index (BMI) and gestational weight gain (GWG) with preterm birth (PTB) remains controversial in the literature. To evaluate different maternal BMI and GWG categories, according to the initial BMI, in relation to different PTB subtypes and perinatal outcomes, we conducted a secondary analysis of a multicentre cross-sectional study, along with a nested case-control study including PTB from 20 centers in Brazil. Pre-pregnancy underweight was associated with a lower risk of provider-initiated PTB, while overweight and obesity were associated with a higher risk of provider-initiated PTB and a lower risk of spontaneous preterm birth. Insufficient gestational weight gain was associated with a higher prevalence of spontaneous PTB and preterm premature rupture of membranes. Excessive GWG correlated with a higher prevalence of provider-initiated PTB or preterm premature rupture of membranes. Irrespective of the initial BMI, the greater the rate of GWG, the higher the predicted probability of all PTB subtypes, except for spontaneous PTB in underweight women and those with normal BMI. On multivariate analysis, the initial BMI was shown to be the only factor associated with pi-PTB. Briefly, further studies evaluating the risk for PTB should consider that GWG may have a different role depending on the initial BMI and PTB subtype.

Indexed as

Body Mass IndexGestational Weight GainAdultCross-Sectional StudiesFemaleHumansMalePregnancyPremature BirthPrognosis

Identifiers

PMID31511664
PMCPMC6739338

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