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      Body Mass Index Changes during Pregnancy and Perinatal Outcomes - A Cross-Sectional Study Translated title: Mudanças do índice de massa corporal na gravidez e resultados perinatais - um estudo transversal

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          Abstract

          Objective To evaluate the relation between changes the body mass index (BMI) percentile, reflected in the Atalah curve, and perinatal outcomes.

          Methods A cross-sectional study with 1,279 women was performed. Data regarding gestational weight, sociodemographic characteristics and perinatal outcomes were collected through medical charts, prenatal card and interviews in the postpartum period. Women could be classified according to the Atalah curve in the following categories: low weight, adequate weight, overweight, and obese. The BMI was calculated at the first and at the last prenatal care visits, and these values were compared.

          Results An increase in the BMI category according to the Atalah classification occurred in 19.9% of pregnant women, and an increase of 3.4, 5.8 and 6.4 points of BMI were found for women respectively classified in the adequate weight, overweight and obese categories at the first prenatal visit. Women with high school education presented a lower chance of increasing their BMI (odds ratio [OR] 0:47 [0.24- 0.95]). Women who evolved with an increase in the the Atalah classification were associated with cesarean section (OR 1.97–2.28), fetal macrosomia (OR 4.13–12.54) and large for gestational age newborn (OR 2.88–9.83).

          Conclusion Pregnant women who gained enough weight to move up in their BMI classification according to the Atalah curve had a higher chance of cesarean section and macrosomia. Women classified as obese, according to the Atalah curve, at the first prenatal visit had a high chance of cesarean section and delivering a large for gestational age newborn.

          Translated abstract

          Resumo

          Objetivo Avaliar a relação entre mudanças no percentual do índice de massa corporal (IMC), refletidas na curva de Atalah, e resultados perinatais.

          Métodos Foi realizado um estudo transversal com 1.279 mulheres. Os dados sobre o peso na gestação, características sociodemográficas e resultados perinatais foram coletados através de prontuários, cartão pré-natal e entrevistas no pós-parto. As mulheres foram classificadas de acordo com a curva de Atalah nas seguintes categorias: baixo peso, peso adequado, sobrepeso e obesidade. O IMC foi calculado na primeira e na última visita ao pré-natal e esses valores foram comparados.

          Resultados Houve aumento na categoria do IMC segundo a classificação de Atalah em 19,9% das mulheres grávidas e um aumento de 3,4; 5,8 e 6,4 pontos do IMC foram encontrados para mulheres respectivamente classificadas nas categorias peso adequado, sobrepeso e obesidade na primeira consulta pré-natal. As mulheres com educação secundária apresentaram menor chance de aumentar sua classificação de IMC ( odds ratio [OR] 0:47 [0,24- 0,95]). As mulheres que evoluíram com o aumento na classificação de Atalah foram associadas a cesariana (OR 1,97–2,28), macrossomia fetal (OR 4,13–12,54) e recém-nascido grande para a idade gestacional (OR 2,88–9,83).

          Conclusão Gestantes com ganho de peso excessivo, o suficiente para aumentar sua classificação do IMC segundo a curva de Atalah, tiveram maiores chances de cesariana e macrossomia. As mulheres classificadas como obesas na primeira visita pré-natal, de acordo com a curva de Atalah, tiveram uma grande chance de cesariana e recém-nascido grande para a idade gestacional.

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          The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: guidelines for reporting observational studies.

          Much biomedical research is observational. The reporting of such research is often inadequate, which hampers the assessment of its strengths and weaknesses and of a study's generalisability. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Initiative developed recommendations on what should be included in an accurate and complete report of an observational study. We defined the scope of the recommendations to cover three main study designs: cohort, case-control, and cross-sectional studies. We convened a 2-day workshop in September 2004, with methodologists, researchers, and journal editors to draft a checklist of items. This list was subsequently revised during several meetings of the coordinating group and in e-mail discussions with the larger group of STROBE contributors, taking into account empirical evidence and methodological considerations. The workshop and the subsequent iterative process of consultation and revision resulted in a checklist of 22 items (the STROBE Statement) that relate to the title, abstract, introduction, methods, results, and discussion sections of articles. 18 items are common to all three study designs and four are specific for cohort, case-control, or cross-sectional studies. A detailed Explanation and Elaboration document is published separately and is freely available on the Web sites of PLoS Medicine, Annals of Internal Medicine, and Epidemiology. We hope that the STROBE Statement will contribute to improving the quality of reporting of observational studies.
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            Global, regional, and national comparative risk assessment of 79 behavioural, environmental and occupational, and metabolic risks or clusters of risks in 188 countries, 1990–2013: a systematic analysis for the Global Burden of Disease Study 2013

            The Global Burden of Disease, Injuries, and Risk Factor study 2013 (GBD 2013) is the first of a series of annual updates of the GBD. Risk factor quantification, particularly of modifiable risk factors, can help to identify emerging threats to population health and opportunities for prevention. The GBD 2013 provides a timely opportunity to update the comparative risk assessment with new data for exposure, relative risks, and evidence on the appropriate counterfactual risk distribution.
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              The short- and long-term implications of maternal obesity on the mother and her offspring.

              Obesity's increasing prevalence has reached epidemic proportions in the USA, with close to one-third of the adult population affected in 2000. Additionally, there is increasing prevalence of obesity in other industrialised areas of the world such as Europe. Of potentially more concern is the potential risks associated with obesity and related metabolic complications in the developing world. The maternal, fetal, peripartum and neonatal complications of obesity in pregnancy have far-reaching implications for both mother and offspring. Of alarming interest is the increasing rate of obesity among adolescents and the cycle of obesity in future generations it portends. The purpose in this review is to briefly review the maternal perinatal morbidities associated with maternal pregravid obesity. Additionally, we will review evidence of both short- and long-term effect of maternal obesity on the in utero environment as it relates to fetal growth, neonatal body composition and adolescent obesity.
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                Author and article information

                Journal
                Rev Bras Ginecol Obstet
                Rev Bras Ginecol Obstet
                10.1055/s-00030576
                RBGO Gynecology & Obstetrics
                Thieme Revinter Publicações Ltda (Rio de Janeiro, Brazil )
                0100-7203
                1806-9339
                18 December 2017
                January 2018
                1 December 2017
                : 40
                : 1
                : 11-19
                Affiliations
                [1 ]Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
                [2 ]Universidade Federal do Ceará, Fortaleza, CE, Brazil
                Author notes
                Address for correspondence Fernanda Garanhani Surita, Associate Professor Alexander Fleming 101, 13083-881, Campinas, SPBrazil surita@ 123456unicamp.br
                Article
                0121
                10.1055/s-0037-1608885
                10467363
                29253913
                bb3da2bc-7357-451d-93f0-2030639a83e6

                This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.

                History
                : 11 August 2017
                : 17 October 2017
                Categories
                Original Article

                pregnancy,weight gain,atalah curve,obesity,cesarean-section,fetal weight,gravidez,ganho de peso,curva de atalah,obesidade,cesariana,peso fetal

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