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Logo of archdischfnArchives of Disease in Childhood - Fetal & NeonatalVisit this articleSubmit a manuscriptReceive email alertsContact usBMJ
Arch Dis Child Fetal Neonatal Ed. Mar 1997; 76(2): F75–F81.
PMCID: PMC1720635

Differential effects of preterm birth and small gestational age on cognitive and motor development


AIMS—To determine the differential effects of preterm birth and being small for gestational age on the cognitive and motor ability of the child.
METHODS—A longitudinal cohort of all infants of gestational age ≤ 32 weeks born to mothers resident in the counties of Cheshire and Merseyside in 1980-1 was studied. The children were assessed at the age of 8 to 9 years using the Wechsler Intelligence Scale for Children, the Neale analysis of reading ability, and the Stott-Moyes-Henderson test of motor impairment. Adequacy of fetal growth was determined by the birthweight ratio—that is, the ratio of the observed birthweight to the expected birthweight for a given gestational age. Children with clinically diagnosed motor, learning or sensory disabilities were excluded. Information on social variables was obtained by a questionnaire completed by the parents. Of the 182 children, 158 were assessed.
RESULTS—IQ was positively correlated with birthweight ratio but not with birthweight or gestational age. Motor ability was associated with birthweight, gestational age, and birthweight ratio. Reading comprehension was associated with birthweight ratio, but reading rate and accuracy were best explained by social variables and sex. IQ remained associated with birthweight ratio, after adjusting for maternal education, housing status, and number of social service benefits received. Reading ability was related to these social variables but motor ability was not.
CONCLUSIONS—The effects of SGA and preterm birth differed: SGA was associated with cognitive ability, as measured by IQ and reading comprehension; motor ability was additionally associated with preterm birth. Reading rate and accuracy were not associated with SGA or preterm birth but were socially determined.

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Selected References

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  • Drillien CM. Aetiology and outcome in low-birthweight infants. Dev Med Child Neurol. 1972 Oct;14(5):563–574. [PubMed]
  • Francis-Williams J, Davies PA. Very low birthweight and later intelligence. Dev Med Child Neurol. 1974 Dec;16(6):709–728. [PubMed]
  • Fancourt R, Campbell S, Harvey D, Norman AP. Follow-up study of small-for-dates babies. Br Med J. 1976 Jun 12;1(6023):1435–1437. [PMC free article] [PubMed]
  • Drillien CM, Thomson AJ, Burgoyne K. Low-birthweight children at early school-age: a longitudinal study. Dev Med Child Neurol. 1980 Feb;22(1):26–47. [PubMed]
  • Parkinson CE, Scrivener R, Graves L, Bunton J, Harvey D. Behavioural differences of school-age children who were small-for-dates babies. Dev Med Child Neurol. 1986 Aug;28(4):498–505. [PubMed]
  • Largo RH, Pfister D, Molinari L, Kundu S, Lipp A, Duc G. Significance of prenatal, perinatal and postnatal factors in the development of AGA preterm infants at five to seven years. Dev Med Child Neurol. 1989 Aug;31(4):440–456. [PubMed]
  • Kramer MS. Determinants of low birth weight: methodological assessment and meta-analysis. Bull World Health Organ. 1987;65(5):663–737. [PMC free article] [PubMed]
  • Staples B, Pharoah PO. Child health statistical review. Arch Dis Child. 1994 Dec;71(6):548–554. [PMC free article] [PubMed]

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