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Table 3 Concordance between Griffiths and Bayley-II (Group 1) or Bayley-III (Group 2)

From: Neurodevelopmental outcome of extremely low birth weight infants at 24 months corrected age: a comparison between Griffiths and Bayley Scales

  Concordance (%) Weighted K C.I. 95 % of K
Group 1
Cognitive-Language abilitiesa 70.7 0.63 0.51–0.75
Motor abilitiesb 67.4 0.50 0.35–0.65
Group 2
Cognitive-Language abilitiesc 89.2 0.80 0.69–0.92
Motor abilitiesd 90.2 0.81 0.69–0.93
  1. aGriffiths Hearing and Speech-Performance Quotients (mean) vs Bayley-II MDI
  2. bGriffiths Locomotor-Eye and Hand Coordination Quotients (mean) vs Bayley-II PDI
  3. cGriffiths Hearing and Speech-Performance Quotients (mean) vs Bayley-III Cognitive-Language Composite Scores (mean)
  4. dGriffiths Locomotor-Eye and Hand Coordination Quotients (mean) vs Bayley-III Motor Composite Score