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0134/2018 - Temporal trends of preterm birth and of its determinants in one decade.
Tendência temporal do nascimento pré-termo e de seus determinantes em uma década.

Author:

• Bruna Balbi - Balbi, B - <brunabalbi@hotmail.com>

Co-author(s):

• Maria Antonieta de Barros Leite Carvalhaes - Carvalhaes, MABL - <nenecablc@uol.com.br>
ORCID: https://orcid.org/0000-0002-6695-0792
• Cristina Maria Garcia de Lima Parada - Parada, C.M.G.L. - <cristina.parada@unesp.br>
ORCID: https://orcid.org/0000-0002-9597-3635


Abstract:

This study aimed at analyzing the frequency of preterm births and at identifying their risk factors and development in one decade (2001-2005-2010) in a city in São Paulo state. It is a time-series study using datathe Live Birth Information System. Univariate and multiple logistic regressions were used to identify factors associated with preterm births, and linear regression was utilized to evaluate the time tendency of such factors in the period. In order to prevent underestimation, a correction factor was applied to the preterm frequencies obtained. A discrete increase in preterm birth was observed: 12.5%, 12.0% and 13.2%. After adjusting for potential confounders, maternal age equal to or higher than 35 years and cesarean sections were associated with higher chances for such outcome and increased over the decade. The number of births at high-risk hospitals and of women with fewer than seven prenatal consultations decreased during that period while that of multiple pregnancies remained stable. As compared to vaginal births, cesarean sections doubled the chance of preterm birth. Among the five factors associated with preterm birth, three (cesarean sections, births at high-risk hospitals and fewer than seven prenatal consultations) are modifiable by actions taken by health care services.

Keywords:

Premature; Pregnancy; Epidemiology; Information Systems.

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Balbi, B, Carvalhaes, MABL, Parada, C.M.G.L.. Temporal trends of preterm birth and of its determinants in one decade.. Cien Saude Colet [periódico na internet] (2018/Mar). [Citado em 21/01/2025]. Está disponível em: http://cienciaesaudecoletiva.com.br/en/articles/temporal-trends-of-preterm-birth-and-of-its-determinants-in-one-decade/16667?id=16667



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