Seungmi Yang|Robert W. Platt|Michael S. Kramer
Variation in Child Cognitive Ability by Week of Gestation Among Healthy Term Births
McGill University Health Centre
authors investigated variations cognitive ability gestational age among 13824 children age 65 years born term normal weight using data prospective cohort recruited 19961997 belarus mean differences wechsler abbreviated scales intelligence examined gestational age completed weeks fetal growth controlling maternal family characteristics compared score born 3941 weeks fullscale intelligence quotient iq score 17 points 95 confidence interval ci 27 07 lower children born 37 weeks 04 points 95 ci 11 002 lower 38 weeks controlling confounders also graded relation postterm children 05points 95 ci 26 16 lower score 42 weeks 60 points 95 ci 151 31 lower 43 weeks compared children born large gestational age 90th percentile children born small gestational age 10th percentile lowest iq followed 10th50th percentile 50th90th percentile findings suggest even among healthy children born term cognitive ability age 65 years lower born 37 38 weeks suboptimal fetal growth