Developmental outcome in very low birth weight infants 6 to 36 months old

Barbara Mazer, Martha Piper*, Maria Ramsay

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


A cohort of 78 infants weighing less than 1500 g at birth was followed prospectively to determine the impact of birth weight, age of assessment, and skill area on their developmental performance. Five skill areas were tested using the Griffiths Mental Scales of Development at 6, 12, 24, and 36 months of age. Infants were divided into three birth weight groups: <750 g, 750–1000 g, and 1001–1500 g. A significant age and skill interaction was found, with the locomotor and eye-hand skills decreasing consistently over time, and the personal-social and hearing and speech skills initially decreasing and then rising from 12 to 36 months. Infants born at <1000 g consistently performed more poorly than those born at 1001–1500 g. Explanations for the variation in scores and the implications of these findings to the evaluation of low birth weight infants are discussed.

Original languageEnglish
Pages (from-to)293-297
Number of pages5
JournalJournal of Developmental and Behavioral Pediatrics
Issue number5
Publication statusPublished - Oct 1988
Externally publishedYes


  • Development
  • Premature
  • Very low birth weight


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