Development and behaviour of 5-year-old very low birthweight infants

Liisi Rautava1, Sture Andersson, Mika Gissler

  • 1Department of Pediatrics, Turku University Hospital, Kiinamyllynkatu 4-8, Turku, Finland. liisi.rautava@utu.fi

Insights

Short pregnancy duration negatively impacts development and behavior in very low birthweight infants (VLBWI). However, birth time, hospital level, and district did not affect VLBWI developmental or behavioral outcomes at age five.

Area of Science:

  • Neonatalogy
  • Developmental Pediatrics
  • Public Health

Background:

  • Prematurity and birth circumstances significantly affect infant mortality.
  • Understanding long-term developmental and behavioral outcomes in premature infants is crucial.

Purpose of the Study:

  • To investigate the influence of prematurity, birth timing, hospital level, and district on the development and behavior of 5-year-old very low birthweight infants (VLBWI).
  • To compare developmental and behavioral outcomes between VLBWI and full-term controls.

Main Methods:

  • A national cohort study of Finnish VLBWI (gestational age <32 weeks or birthweight <1,500 g) and full-term controls born in 2001-2002.
  • Parent-reported Five to Fifteen (FTF) questionnaire data on development and behavior at age 5.
  • Linking FTF data with national health registers (Medical Birth Register, Hospital Discharge Register, Register of Congenital Malformations, Cause of Death Register).

Main Results:

  • VLBWI demonstrated lower developmental and behavioral scores across all FTF domains compared to controls.
  • Lower gestational age in VLBWI correlated with less optimal developmental and behavioral scores.
  • No significant association was found between time of birth, birth hospital level, or district and the developmental/behavioral scores in VLBWI.

Conclusions:

  • Short duration of pregnancy is a key factor adversely influencing development and behavior in VLBWI.
  • Contrary to mortality data, birth time, hospital level, and district did not impact VLBWI developmental or behavioral outcomes at age five.
  • Survival advantages in higher-level hospitals (Level III) do not appear to compromise the developmental or behavioral outcomes of VLBWI.

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