2023
DOI: 10.1590/1980-549720230016
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Gestational age: comparing estimation methods and live births’ profile

Abstract: Objective: To identify factors associated with the definition of the gestational age (GA) estimation method recorded in the live birth certificate (LBC), and to compare the results obtained according to the method in the city of São Paulo (CSP), between 2012 and 2019. Methods: Cross-sectional population-based study using the Live Birth Information System. Descriptive and comparative analysis was performed according to the GA estimation method, followed by a univariate and multivariate logistic regression mode… Show more

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“…About 40% of live births in the municipality of São Paulo have their gestational age determined by the last menstrual period date. This method tends to overestimate prematurity when compared with the ultrasonographic method; therefore these differences in the definition of gestational age may be present in our data 45 . However, the limitations presented here do not compromise the results of this study, as routine data are frequently used in research on fetal mortality 9,19 …”
Section: Discussionmentioning
confidence: 82%
“…About 40% of live births in the municipality of São Paulo have their gestational age determined by the last menstrual period date. This method tends to overestimate prematurity when compared with the ultrasonographic method; therefore these differences in the definition of gestational age may be present in our data 45 . However, the limitations presented here do not compromise the results of this study, as routine data are frequently used in research on fetal mortality 9,19 …”
Section: Discussionmentioning
confidence: 82%