--- title: Extremely Premature Babies Face Developmental Issues, Study Says description: A new study shows premature babies score lower on cognitive tests canonical: https://time.com/3705755/premature-babies-developmental-risks/ author: Alexandra Sifferlin article:opinion: false article:content_tier: free article:published_time: 2015-02-11T22:42:18.000Z article:modified_time: 2026-02-22T04:20:43.497Z article:section: Health og:title: Extremely Premature Babies Face Developmental Issues, Study Says og:description: A new study shows premature babies score lower on cognitive tests og:url: https://time.com/3705755/premature-babies-developmental-risks/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt9393c2c67ad387d6/69877ecb06f2c13ee6333eb4/487737319-copy.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 og:image:width: 1200 og:image:height: 675 og:image:alt: 487737319 og:type: article twitter:card: summary_large_image twitter:title: Extremely Premature Babies Face Developmental Issues, Study Says twitter:description: A new study shows premature babies score lower on cognitive tests twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt9393c2c67ad387d6/69877ecb06f2c13ee6333eb4/487737319-copy.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 ---  # Extremely Premature Babies Face Developmental Issues, Study Says by [Alexandra Sifferlin](https://time.com/author/alexandra-sifferlin/) ## Alexandra Sifferlin Feb 11, 2015 10:42 PM UTC  Neonatology. Sensor measuring blood oxygen levels (oximetry). France Neonatology. Sensor measuring blood oxygen levels (oximetry). FranceGetty Images by [Alexandra Sifferlin](https://time.com/author/alexandra-sifferlin/) ## Alexandra Sifferlin Feb 11, 2015 10:42 PM UTC Thanks to innovative technologies, babies born extremely premature have a much [higher likelihood of survival](http://time.com/108708/the-cutting-edge-medicine-saving-preemies/) now than in the past. However, they can be at a much greater risk for medical problems, and a [new study](http://www.lunduniversity.lu.se/article/new-study-assesses-premature-babies-at-25-years-old) suggests that being born too early can mean developmental problems later on. For her PhD thesis, researcher and Lund University psychologist Johanna Månsson assessed around 400 extremely premature babies (born week 28 or earlier) and about 400 control babies that were born at full term. When the infants reached age 2.5, they underwent psychological tests, and Månsson discovered that the babies born prematurely had significantly worse scores for language comprehension, speech, motor skills and cognition. The premature babies were also more likely to have behavioral issues, and boys were overall more delayed than the girls. Though there were distinct disparities between the children’s development, the premature infants still fell into score ranges that were classified as normal. “Our findings encourage behavioral assessments during preschool years and emphasize the importance of considering multifactorial pathways of prediction when examining prematurity outcome,” Månsson writes in her report. Månsson says the findings indicate that early interventions may be needed to ensure that extremely premature babies catch up developmentally. 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