Comparison of the developmental tests Bayley-III and Bayley-II in 7-month-old infants born preterm

• Verfasst von: Reuner, Gitta [VerfasserIn]
• Verfasst von: Wittke, Andrea [VerfasserIn]
• Verfasst von: Löpprich, Martin [VerfasserIn]
• Verfasst von: Pietz, Joachim [VerfasserIn]
• Titel: Comparison of the developmental tests Bayley-III and Bayley-II in 7-month-old infants born preterm
• Verf.angabe: Gitta Reuner, Anna Christine Fields, Andrea Wittke, Martin Löpprich, Joachim Pietz
• Jahr: 2013
• Umfang: 8 S.
• Fussnoten: First Online: 08 December 2012 ; Gesehen am 25.05.2018
• Titel Quelle: Enthalten in: European journal of pediatrics
• Ort Quelle: Berlin : Springer Science & Business Media B.V., 1975
• Jahr Quelle: 2013
• Band/Heft Quelle: 172(2013), 3, Seite 393-400
• ISSN Quelle: 1432-1076
• DOI: doi:10.1007/s00431-012-1902-6
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1575524562

Abstract

The study aims on comparing Bayley Scales of infant development third (Bayley-III) and Bayley second (Bayley-II) edition with special focus on patterns in the first year of life. Fifty-five premature infants (43 with low birth weight/LBW >1,499 g and 12 with very/extremely low birth weight/VLBW/ELBW <1,500 g) aged 7 months (corrected for prematurity) were assessed with the complete Bayley-III. From this assessment, Bayley-II results were retrospectively estimated. Bayley-III results were compared to the expected mean with one-sample t-tests. The mean scores of both editions were compared with the aid of paired-sample t-tests. Pearson correlations between subscales and editions were analysed. The Bayley-III cognitive score of the study group was significantly higher than the expected mean of the standardization sample. VLBW/ELBW had significantly lower motor scores than LBW in both editions. When compared to estimated Bayley-II scores, all relevant Bayley-III scores were significantly higher (all p < .01) with highest difference (ten points) between the motor scales of both editions. There were significant correlations not only between Bayley-III cognitive and language scales but also between language and motor scales. Given the strong association between motor and cognitive behaviour in early infancy, this age-specific pattern is heightening the risk of failure to identify infants at risk for both cognitive and motor delay. Therefore, assessment of infants should comprise all subscales. Since Bayley-III probably overestimates especially motor performance in young infants, when interpreting Bayley-III scores in this age, comparison groups are highly recommended until further validation of normative data are outstanding.