OBJECTIVE: To characterise fetal brain growth in children with specific language impairment (SLI). DESIGN: A nested case-control study. SETTING: Perth, Western Australia. PARTICIPANTS: Thirty children meeting criteria for SLI at age 10 years were individually matched with a typically developing comparison child on sex, non-verbal ability, fetal gestational age, maternal age at conception, smoking and alcohol intake during pregnancy. MAIN OUTCOME MEASURES: Occipitofrontal head circumference (HC) was measured using ultrasonography at approximately 18 weeks gestation. Femur length provided a measure of fetal length. Occipitofrontal HC was measured at birth and at the 1-year postnatal follow-up using a precise paper tape measure, while crown-heel length acted as an index of body length at both time points. Raw data were transformed to z-scores using reference norms. RESULTS: The SLI group had a significantly smaller mean HC than the typically developing comparison children at birth, but there was no group difference at 18 weeks gestation or at the 1-year postnatal follow-up. Individual analyses found that 12 SLI children had an HC z-score less than -1 at birth, with three of these cases meeting criteria for microcephaly. There was no group difference in the indices of overall body size at any time point. CONCLUSIONS: Children with SLI are more likely to have a small HC at birth but not at 18 weeks gestation or infancy, suggesting growth asynchrony in brain development during the second half of pregnancy.
OBJECTIVE: To characterise fetal brain growth in children with specific language impairment (SLI). DESIGN: A nested case-control study. SETTING: Perth, Western Australia. PARTICIPANTS: Thirty children meeting criteria for SLI at age 10 years were individually matched with a typically developing comparison child on sex, non-verbal ability, fetal gestational age, maternal age at conception, smoking and alcohol intake during pregnancy. MAIN OUTCOME MEASURES: Occipitofrontal head circumference (HC) was measured using ultrasonography at approximately 18 weeks gestation. Femur length provided a measure of fetal length. Occipitofrontal HC was measured at birth and at the 1-year postnatal follow-up using a precise paper tape measure, while crown-heel length acted as an index of body length at both time points. Raw data were transformed to z-scores using reference norms. RESULTS: The SLI group had a significantly smaller mean HC than the typically developing comparison children at birth, but there was no group difference at 18 weeks gestation or at the 1-year postnatal follow-up. Individual analyses found that 12 SLI children had an HC z-score less than -1 at birth, with three of these cases meeting criteria for microcephaly. There was no group difference in the indices of overall body size at any time point. CONCLUSIONS:Children with SLI are more likely to have a small HC at birth but not at 18 weeks gestation or infancy, suggesting growth asynchrony in brain development during the second half of pregnancy.
Authors: Robert J Kuczmarski; Cynthia L Ogden; Shumei S Guo; Laurence M Grummer-Strawn; Katherine M Flegal; Zuguo Mei; Rong Wei; Lester R Curtin; Alex F Roche; Clifford L Johnson Journal: Vital Health Stat 11 Date: 2002-05
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Authors: Kelly K Ferguson; Sara Sammallahti; Emma Rosen; Michiel van den Dries; Anjoeka Pronk; Suzanne Spaan; Mònica Guxens; Henning Tiemeier; Romy Gaillard; Vincent W V Jaddoe Journal: Epidemiology Date: 2021-09-01 Impact factor: 4.860
Authors: Eleonora Rubini; Inge M M Baijens; Alex Horánszky; Sam Schoenmakers; Kevin D Sinclair; Melinda Zana; András Dinnyés; Régine P M Steegers-Theunissen; Melek Rousian Journal: Genes (Basel) Date: 2021-10-17 Impact factor: 4.096