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Brazilian multicentre study on preterm birth (EMIP): prevalence and factors associated with spontaneous preterm birth

Passini, Jr, Renato ; Cecatti, Jose G ; Lajos, Giuliane J ; Tedesco, Ricardo P ; Nomura, Marcelo L ; Dias, Tabata Z ; Haddad, Samira M ; Rehder, Patricia M ; Pacagnella, Rodolfo C ; Costa, Maria L ; Sousa, Maria H da Silva Nunes, Monica

PloS one, 2014-10, Vol.9 (10), p.e109069-e109069 [Periódico revisado por pares]

United States: Public Library of Science

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Título:
Brazilian multicentre study on preterm birth (EMIP): prevalence and factors associated with spontaneous preterm birth
Autor: Passini, Jr, Renato ; Cecatti, Jose G ; Lajos, Giuliane J ; Tedesco, Ricardo P ; Nomura, Marcelo L ; Dias, Tabata Z ; Haddad, Samira M ; Rehder, Patricia M ; Pacagnella, Rodolfo C ; Costa, Maria L ; Sousa, Maria H
da Silva Nunes, Monica
Assuntos: Abortion, Induced - adverse effects ; Adult ; Birth ; Bleeding ; Body mass ; Body mass index ; Brazil - epidemiology ; Childbirth & labor ; Childrens health ; Cross-Sectional Studies ; Delivery, Obstetric - adverse effects ; Female ; Gestation ; Gynecology ; Health care facilities ; Hospital facilities ; Hospitals ; Humans ; Identification methods ; Infant, Newborn ; Infants (Premature) ; Maternal & child health ; Medical records ; Medicine and Health Sciences ; Obstetrics ; Pregnancy ; Pregnancy Complications - physiopathology ; Pregnancy, Multiple - physiology ; Premature birth ; Premature Birth - epidemiology ; Premature Birth - etiology ; Premature infants ; Prevalence ; Prevalence studies (Epidemiology) ; Regression analysis ; Reproductive health ; Research and Analysis Methods ; Risk ; Risk analysis ; Risk Factors ; Studies ; Systematic review ; Vagina ; Weight Gain - physiology ; Womens health ; Young Adult
É parte de: PloS one, 2014-10, Vol.9 (10), p.e109069-e109069
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Competing Interests: The authors have declared that no competing interests exist.
Membership of the Brazilian Multicentre Study on Preterm Birth study group is provided in the Acknowledgments.
Conceived and designed the experiments: RPJ JGC GJL RPT MLN TZD SMH PMR MHS. Performed the experiments: RPJ JGC GJL RPT MLN TZD SMH PMR MHS. Analyzed the data: RPJ JGC GJL RPT MLN TZD SMH PMR RCP MLC MHS. Contributed reagents/materials/analysis tools: RPJ JGC GJL RPT MLN TZD SMH MHS. Wrote the paper: RPJ JGC GJL RPT MLN TZD SMH PMR RCP MLC MHS.
Descrição: Preterm birth rate is increasing and is currently a worldwide concern. The purpose of this study was to estimate the prevalence of preterm birth in a sample of health facilities in Brazil and to identify the main risk factors associated with spontaneous preterm births. This was a multicentre cross sectional study on preterm births in 20 referral obstetric hospitals with a case-control component to identify factors associated with spontaneous preterm birth. Surveillance was implemented at all centres to identify preterm births. For eligible consenting women, data were collected through a post-delivery questionnaire completed with information from all mother-newborn medical records until death or discharge or at a maximum of 60 days post-delivery, whichever came first. The risk of spontaneous preterm birth was estimated with OR and 95%CI for several predictors. A non-conditional logistic regression analysis was then performed to identify independently associated factors. The overall prevalence of preterm birth was 12.3%. Among them, 64.6% were spontaneous and 35.4% therapeutic. In the case-control component, 2,682 spontaneous preterm births were compared to a sample of 1,146 term births. Multivariate analyses identified the following as risk factors for spontaneous preterm birth among women with at least one previous birth: a previous preterm birth (ORadj = 3.19, 2.30-4.43), multiple pregnancy (ORadj = 29.06, 8.43-100.2), cervical insufficiency (ORadj = 2.93, 1.07-8.05), foetal malformation (ORadj = 2.63, 1.43-4.85), polyhydramnios (ORadj = 2.30, 1.17-4.54), vaginal bleeding (ORadj = 2.16, 1.50-3.11), and previous abortion (ORadj = 1.39, 1.08-1.78). High BMI (ORadj = 0.94, 0.91-0.97) and weight gain during gestation (ORadj = 0.92, 0.89-0.95) were found to be protective factors. The preterm birth rate in these health facilities in Brazil is high and spontaneous preterm births account for two thirds of them. A better understanding of the factors associated with spontaneous preterm birth is of utmost importance for planning effective measures to reduce the burden of its increasing rates.
Editor: United States: Public Library of Science
Idioma: Inglês

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Brazilian multicentre study on preterm birth (EMIP): prevalence and factors associated with spontaneous preterm birth

Passini, Jr, Renato ; Cecatti, Jose G ; Lajos, Giuliane J ; Tedesco, Ricardo P ; Nomura, Marcelo L ; Dias, Tabata Z ; Haddad, Samira M ; Rehder, Patricia M ; Pacagnella, Rodolfo C ; Costa, Maria L ; Sousa, Maria H da Silva Nunes, Monica

United States: Public Library of Science

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