Table 1 Demographic and clinical profile of the two study groups.
From: Trajectories of brain development in school-age children born preterm with very low birth weight
VLBW (n = 41) | Term-born (n = 128) | p-value | |||||
|---|---|---|---|---|---|---|---|
Mean | SD | Range | Mean | SD | Range | ||
Birth weight, grams | 1039 | 313 | 416–1495 | 3679 | 529 | 2510–5460 | <0.0001* |
Gestational age, weeks (days) | 29(1) | 2(6) | 23(4)–35(1) | 40(0) | 1(2) | 37(1)–42(4) | <0.0001* |
Age, years | |||||||
Timepoint 1 | 7.7 | 1.7 | (5.0, 10.4) | 8.2 | 1.2 | (4.9, 11.1) | 0.51 |
Timepoint 2 (n = 30 VLBW, 90 term-born) | 8.9 | 1.7 | (6.1, 10.7) | 9.5 | 1.2 | (6.3, 12.0) | 0.31 |
Sex, male:female | 17:24 | 66:62 | 0.26 | ||||
IQ | 93.5 | 9.8 | (74, 117) | 107.4 | 13.8 | (73, 139) | <0.0001* |
Socioeconomic status (low 1, high 5; n = 37 VLBW, 109 term-born) | 3.9 | 0.9 | (1, 5) | 4.3 | 0.9 | (1,5) | 0.12 |
Received/plan to receive help at school, (%) | 15 (36.6) | 9 (7.0) | <0.0001* | ||||
