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Variation in term birthweight across European countries affects the prevalence of small for gestational age among very preterm infants
Author(s) -
Zeitlin Jennifer,
Bonamy AnnaKarin Edstedt,
Piedvache Aurelie,
Cuttini Marina,
Barros Henrique,
Van Reempts Patrick,
Mazela Jan,
Jarreau PierreHenri,
Gortner Ludwig,
Draper Elizabeth S.,
Maier Rolf F.
Publication year - 2017
Publication title -
acta paediatrica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 115
eISSN - 1651-2227
pISSN - 0803-5253
DOI - 10.1111/apa.13899
Subject(s) - medicine , small for gestational age , percentile , demography , gestational age , pediatrics , birth weight , obstetrics , cohort , pregnancy , statistics , genetics , mathematics , sociology , biology
Aim This study assessed the prevalence of small for gestational age ( SGA ) among very preterm ( VPT ) infants using national and European intrauterine references. Methods We generated country‐specific and common European intrauterine growth references for 11 European countries, according to Gardosi's approach and Hadlock's foetal growth model, using national data on birthweights by sex. These references were applied to the Effective Perinatal Intensive Care in Europe ( EPICE ) cohort, which comprised 7766 live VPT births without severe congenital anomalies under 32 weeks of gestation in 2011–2012, to estimate the prevalence of infants with SGA birthweights, namely those below the 10th percentile. Results The SGA prevalence was 31.8% with country‐specific references and 34.0% with common European references. The European references yielded a 10‐point difference in the SGA prevalence between countries with lower term birthweights (39.9%) – Portugal, Italy and France – and higher term birthweights, namely Denmark, the Netherlands, Sweden (28.9%; p < 0.001). This was not observed with country‐specific references, where the respective figures were 32.4% and 33.9% (p = 0.34), respectively. Conclusion One‐third of VPT infants were SGA according to intrauterine references. Common European references showed significant differences in SGA prevalence between countries with high and low‐term birthweights.