Table 4

ORs for the risk of MDI<85 determined using multiple logistic regression analysis

OR (95% CI)p Value
Gestational age0.778 (0.572 to 1.057)0.11
Birth weight1.000 (0.997 to 1.003)0.79
SGA (yes or no)*2.995 (0.980 to 9.151)0.054
Moderate or severe BPD†2.146 (1.047 to 4.399)0.037
IVH grade 1–21.517 (0.730 to 3.153)0.26
IVH grade 3–41.515 (0.619 to 3.705)0.36
PVL (yes or no)3.854 (1.154 to 12.871)0.028
NEC3.881 (1.039 to 14.502)0.044
Hydrocortisone given (yes or no)1.198 (0.588 to 2.438)0.62
  • All factors listed in this table were shown to be statistically significant using univariate regression analysis.

  • Adjusted p values from multiple logistic regression model.

  • *SGA defined as birth weight <10th percentile.

  • †BPD according to the trial definition, corresponding to moderate or severe BPD according to the consensus definition.32

  • The c-statistic for this model is 0.73.

  • BPD, bronchopulmonary dysplasia; IVH, intraventricular haemorrhage; MDI, Mental Developmental Index; NEC, necrotising enterocolitis; PVL, periventricular leukomalacia; SGA, small for gestational age.