Neonatal Med.  2020 Nov;27(4):167-173. 10.5385/nm.2020.27.4.167.

Neurodevelopmental Correlations between the Korean Developmental Screening Test and Bayley Scale III in Very-Low-Birth-Weight Infants

• Han S
• Kim O
• Yoo C
• Heo JS
• Lee HS
• Jeon J

• KMID: 2510821
• DOI: http://doi.org/10.5385/nm.2020.27.4.167

Abstract

Purpose
We aimed to analyze the correlations between the Bayley Scales of Infant Development (BSID)-III and Korean Developmental Screening Test (K-DST) in very-low-birth-weight (VLBW; birth weight <1,500 g) preterm infants.
Methods
We enrolled 53 VLBW infants (mean gestational age, 28.9±2.11 weeks; mean birth weight, 1,158.5±241.1 g) and assessed them using the BSID-III and K-DST at a corrected age of 18 to 24 months. We analyzed the correlations between the BSID-III and K-DST subdomains and evaluated whether the estimated developmental levels were consistent with the corrected ages.
Results
In the BSID-III, the composite scores for cognition, motor, and language were 105.9±13.1 (median, 105; 66th percentile; 95% confidence interval [CI], 98 to 113), 100.9±12.4 (100; 50th percentile; 95% CI, 92 to 108), and 94.9±16.8 (97.5; 34th percentile; 95% CI, 87 to 102), respectively. The scaled scores for receptive/expressive language and gross/fine motor were 9.9±2.9 (10.5)/8.2±2.7 (8) and 9.6±2.4 (9)/10.6 ±2.3 (10), respectively. In the K-DST, the mean scores of cognition (17.8±4.7 [18.5]), language (16.6±7.2 [20]), fine motor (19.4±3.4 [20]), gross motor (19.9±3.8 [21]), sociality (18.6±4.7 [20]), and self-control (17.3±5.1 [18]) were within the range of normal developmental status. Among the overlapping subdomains, cognition (r=0.58, P= 0.003) and language (r=0.86, P<0.001), but not fine and gross motor status (r=0.05, P= 0.79; r=0.16, P=0.44, respectively), showed significant correlation between the BSID-III and K-DST.
Conclusion
The language and cognition domains of the K-DST were significantly correlated with the BSID-III in preterm VLBW infants. Clinicians should consider these discrepancies and correlations when evaluating the developmental status of preterm VLBW infants.

Keyword

Infant, very low birth weight; Neurodevelopment; Bayley Scales; Korean Developmental Screening Test

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