Table 3

Secondary analysis of effects of disability, gender, multiple pregnancy, uptake, and practice effects on 2 year Griffiths scores

VariablePortageParent adviserPreterm control
NMean (SEM)NMean (SEM)NMean (SEM)
Disability
 All children89 96.8 (1.6)9095.9 (2.0)8892.9 (2.0)
 Exclude disability79100.1 (1.1)8498.5 (1.2)7797.3 (1.2)
Gender
 Males58 95.1 (2.3)4596.4 (1.9)5391.1 (3.0)
 Females31 99.9 (1.9)4595.5 (2.7)3595.6 (2.4)
Multiple pregnancy
 Singletons73 96.0 (2.0)7197.9 (1.9)7492.2 (2.3)
 Twins16100.2 (1.2)1988.6 (2.8)1496.6 (3.4)
Uptake of intervention
 More than 10 visits83 96.8 (1.7)8695.5 (1.7)8892.9 (2.0)
Practice effects (excluding those
with disability)
 Exclude first 15 in each group69100.6 (1.1)3-150 7199.2 (1.4)6896.9 (1.2)
  • 3-150 p<0.05 (Portage vs Controls)