Table 1

Baseline characteristics of the final very preterm cohort with follow-up data and also those infants lost to follow-up

CharacteristicsFinal cohort (n=75)Lost to follow-up (n=19)P value
Chorioamnionitis, n (%)10 (13.3)4 (21.1)0.47
Antenatal steroids (completed course)*, n (%)40 (54.8)6 (33.3)0.12
Gestational age, weeks, mean (SD)28.1 (2.4)28.8 (3.0)0.10
Birth weight, grams, mean (SD)1116.9 (396.4)1140.8 (394.8)0.37
Male, n (%)44 (58.7)9 (47.4)0.44
Severe retinopathy of prematurity, n (%)8 (10.7)1 (5.3)0.68
Bronchopulmonary dysplasia, n (%)39 (52.0)9 (47.4)0.80
Late onset sepsis, n (%)8 (10.7)5 (26.3)0.13
Postnatal steroids, n (%)6 (8.0)0 (0.0)0.34
Low socioeconomic status, n (%)40 (53.3)15 (78.9)0.07
Moderate injury on structural MRI, n (%)†11 (14.7)1 (5.3)0.44
  • *Antenatal steroid information was unavailable for two subjects in the final cohort and one subject lost to follow-up.

  • †Only one subject in our final cohort had severe injury on structural MRI.