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Journal of Pediatric Psychology Advance Access published online on October 12, 2005
Journal of Pediatric Psychology, doi:10.1093/jpepsy/jsj084
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Journal of Pediatric Psychology © The Author 2005. Published by Oxford University Press on behalf of the Society of Pediatric Psychology. All rights reserved. For permissions, please e-mail: journals.permissions@oxfordjournals.org
Received November 30, 2002
Revised September 18, 2003
Accepted December 15, 2003

Original Research Article

Do Gestational Age and Weight for Gestational Age Predict Concordance in Parental Perceptions of Infant Temperament?

Anu-Katriina Pesonen PhD1, Katri Räikkönen PhD1*, Timo E. Strandberg MD, PhD2, and Anna-Liisa Järvenpää MD, PhD3

1 Department of Psychology, University of Helsinki, Helsinki University Central Hospital
2 Department of Medicine, University of Helsinki, Helsinki University Central Hospital
3 Department of Neonatology, Hospital for Children and Adolescents, Helsinki University Central Hospital

* To whom correspondence should be addressed.
Katri Räikkönen, E-mail: katri.raikkonen{at}helsinki.fi


  Abstract

Objective To study whether infant weight for gestational age, and gestational age predict mother- and father-rated infant temperament (IBQ) at 6 months. Methods The sample comprised of family units with both biological parents and infants born at term (n = 152). Data on weight and gestational age were collected form obstetric database. Results Infants born small for gestational age (SGA) (weight < 10th percentile for gestational age) were rated by both parents as significantly more fearful and negatively reactive compared to infants born appropriate for gestational age (AGA). Infants born SGA defined by using the lowest 15th or 20th percentile groups did not differ from AGA group in temperament. The weekly continuum of gestational age predicted differences in parental ratings of infant temperamental attentiveness. Conclusions The predictive significance of infant weight for gestational age and gestational age for behavioral outcomes appear true also for infants born at term. Concordance in parental perceptions of an infant born SGA emphasizes the clinical significance of the findings.

Keywords: father; gestational age; infant; mother; temperament; weight for gestational age.
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