Table 2 Change in standard deviation scores between 30 months and 6 years of age for extremely preterm children who were examined at both time points
Growth parametersNo of data pairs30 Months Mean (SD)6 Years Mean (SD)Mean of differences (CI)
OFC SDS231−1.76 (1.42)−1.63 (1.30)0.13 (0.00 to 0.25)
Weight SDS226−1.58 (1.32)−1.21 (1.32)0.37 (0.23 to 0.50)
Height SDS216−1.39 (1.14)−0.97 (1.10)0.42 (0.31 to 0.52)
BMI SDS212−0.88 (1.34)−0.88 (1.30)0.00 (−0.18 to 0.18)
  • BMI, body mass index; OFC, occipito-frontal head circumference; SDS, standard deviation score.