CLINIC AND SOCIODEMOGRAPHIC FACTORS ASSOCIATED TO PREMATURITY AT “HOSPITAL UNIVERSITÁRIO DA UNIVERSIDADE DE SÃO PAULO”

Martins J1, Faria Ferreira Jorge B1, Maria Ibidi S1, Siqueira Colombo A1, Hydee Hasue R1
1University of São Paulo, São Paulo, Brazil

Background: Preterm birth is considered the main cause of neonatal morbidity and mortality. Therefore, knowing the actual occurrence and understanding its causes and the factors related to prematurity are important for the planning of interventions that diminish its occurrence, as well as to offer more adequate care for the resulting complications, as problems in the neurological development in premature infants. University Hospital of The University of São Paulo (HU-USP) is a teaching hospital and provides care to the population in general. Therefore, in the University Hospital both actions are put into practice for health promotion as are research that generate health action planning.

Purpose: 1) To analyze the frequency of premature delivery and associated mother-infant clinic and sociodemographic factors at HU-USP between January-April, 2014. 2) To compare the frequency of preterm delivery at HU-USP and at São Paulo city.

Methods: Were included 1138 medical recordings of infants born between 01.01.2014 and 30.04.2014. Maternal and infant clinic and sociodemographic factors of every preterm newborn were analyzed. Descriptive and frequency analysis of all variables was performed using Excel 2013. Information about the frequency of preterm births in Brazil, in the state of São Paulo and in the city of São Paulo was obtained on the SINASC database (Information System on Live Births), through the Datasus website ( Brazilian Single Health System).

Results: The prevalence of prematurity between January-April, 2014 2014 was 12,40% at Brasil, 12,59% at São Paulo State and 12,08% at São Paulo City. Between January-April, 2014 2014, the incidence of premature newborns at HU-USP was under 7,8%. Regarding the maternal's clinical and sociodemographic factors: the maternal mean age was 23 years(±6.57), with 30.69% between 20-25 years old and 37.50% studying less than eight years. During gestation 53.41% of the women performed 5-8 antenatal care (6±2.99). 44.32% of the mothers were primigravida (2±1.45). The most common complication was infection (20.45%). Regarding the preterm newborns's clinical and sociodemographic factors: 51.7% were male, 90.91% were moderate to late preterm and were born with 32-37 weeks and 4.55% had APGAR at the 5th minute below 7. The mean weight was 2.562.5 kg (± 0.610), with 53.41% at weight above 2,5 kg. The neonatal complications were hyperbilirubinemia (71.59%), respiratory complications (50%), infections (9.09%) and neurological complications (4.55%).

Conclusion(s): Prematurity is considered the world main cause of neonatal mortality and morbidity and its factors and complications influence the neonatal period up to adulthood.The prevalence of prematurity in 2014 was 12,40% at Brasil, 12,59% at São Paulo State and 12,08% at São Paulo City.The factors associated to prematurity in our sample were the same as previously related in the literature (first pregnancy, low maternal age, maternal infection, newborn respiratory complications and others).

Implications: Premature infants need additional care from the multiprofessional team. Knowing about the percentage of premature infants and their characteristics implies being able to better organize health services and determine the best specific approaches of physiotherapy in the promotion, prevention and recovery of health.

Keywords: Premature birth, Risc Factors, Prenatal care

Funding acknowledgements: The present study was supported by University of São Paulo.

Topic: Paediatrics; Neurology; Paediatrics

Ethics approval required: Yes
Institution: University of São Paulo (USP)
Ethics committee: Ethics and Research Committee of Clinical Hospital of USP
Ethics number: 30238714.3.3001.0076


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