Published online by Cambridge University Press: 29 October 2015
This study of 123 children who weighed under 1500 grams at birth examined cognitive ability and behaviour at 4 years of age, in conjunction with two categories of birthweight and parental socioeconomic status, respectively. Analysis revealed a number of significant differences between the two birthweight groups, with children under 1000 grams performing less well on some WPPSI Scales. These effects of preterm birth, in turn, appeared to be further influenced by socioeconomic status.