Revisiting head circumference of Brazilian newborns in public and private maternity hospitals

ABSTRACT Objective To revisit the head circumference (HC) of newborns in public and private maternity hospitals; to correlate our findings with the gestational age, gender, and type of delivery; and build and validate graphs and curves. Methods This was a prospective study performed on healthy newbo...

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Bibliographic Details
Published in:Arquivos de neuro-psiquiatria 2017-06, Vol.75 (6), p.372-380
Main Authors: Amorim, Maria do Socorro Teixeira, Melo, Aurea Nogueira de
Format: Article
Language:English
Subjects:
Brazil
Cephalometry
Cross-Sectional Studies
Female
Gestational Age
gênero
Head - anatomy & histology
Hospitals, Maternity
Humans
idade gestacional
Infant, Newborn
Male
maternidades pública e privadas
NEUROSCIENCES
perímetro craniano neonatal
Pregnancy
Private Sector
Prospective Studies
PSYCHIATRY
recém nascido
Reference Values
Sex Factors
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Summary:ABSTRACT Objective To revisit the head circumference (HC) of newborns in public and private maternity hospitals; to correlate our findings with the gestational age, gender, and type of delivery; and build and validate graphs and curves. Methods This was a prospective study performed on healthy newborns. Differences in HC were analyzed as a function of gestational age, gender, the healthcare system and the type of delivery. Smoothed percentile curves were created using the least mean squares method. Results Of the included newborns, 697 were born in private maternity hospitals and 2,150 were born in public maternity hospitals. In all, 839 were born by vaginal delivery, and 1,311 were born by cesarean delivery. At 37 to 42 weeks of gestation, male newborns had a larger HC than females. Infants born in private maternity and those born by cesarean delivery had a larger HC. Conclusion An important result of the present study is that our analyses allowed us to generate curves and statistically-validated graphs that can be used in clinical neonatal practice.
ISSN:0004-282X
1678-4227
1678-4227
0004-282X
DOI:10.1590/0004-282X20170058