Table 2

Two-tiered, mixed-effects regression model with clustering around the mother describing the association between preterm newborn Hct at 0–4 hours and predictors including gestational age, male sex and infant age in hours at the time of Hct collection (N=467)

ModelPredictorsβSE95% CIP value
1Gestational age, weeks1.20.11.0 to 1.5<0.001
Male sex0.70.6−0.6 to 1.90.299
2Gestational age, weeks1.20.11.0 to 1.5<0.001
Age at time of 0–4 hours Hct collection, hours0.70.5−0.4 to 1.70.204
  • Hct, haematocrit.