Table 1.
Demographic Characteristics and Test Scores of VLBW and NBW groups
| VLBW n= 64 | NBW n= 40 | ||
|---|---|---|---|
| Factor | Mean (SD) | Mean (SD) | P value |
| Test Age (months) | 46.5 (5.0) | 44.5 (4.1) | P=0.04 |
| Birth weight (grams) | 1195.9 (272.0) | 3213.0 (429.1) | P<0.001 |
| Gestational Age (wks) | 29.2 (2.1) | 38.8 (1.6) | P<0.001 |
| Days on Ventilation | 9.8 (15.8) | 0 (0) | NA |
| IVH ≥3 or PVL | 5 (8%) | 0 (0) | NA |
| Small Gestation Age | 12 (21%) | 0 (0) | NA |
| Child Ethnicity | |||
| White | 19 (30%) | 15 (37.5%) | |
| Native American | 10 (16%) | 6 (15%) | |
| Hispanic/Latino | 33 (51%) | 18 (45%) | |
| other | 2 (3%) | 1 (2.5%) | |
| ♦Maternal Education | 1.7 (1.5) | 2.1 (2.0) | P<0.001 |
| Maternal Age | 32.6 (7.6) | 33.3 (8.1) | P=0.69 |
| Verbal IQ | 93.3 (13.9) | 107.8 (12.0) | P<0.001 |
| Performance IQ | 91.9 (13.2) | 102.6 (10.8) | P<0.001 |
| Full Scale IQ | 90.7 (13.1) | 106.0 (11.3) | P<0.001 |
| Gift Peek | 34.0 (23.2) | 48.0 (16.2) | P<0.005 |
| Bear Dragon | 15.7 (12.9) | 29.3 (7.8) | P<0.001 |
| ^Reverse Cat. % pass | 100 [0,100] | 100 [100,100] | P<0.001 |
| ^ΔDCCSS % pass | 83 [0,100] | 100 [100,100] | P<0.001 |
| ^Maternal Scaffolding | 2.2 (1.7) | 2.9 (2.1) | P=0.06 |
IVH - interventricular hemorrhage; PVL - periventricular hemorrhage
♦
0- <H.S., 1- H.S. graduate; 2- HS+ 1 yr college; 3-Associate degree; 4-Bachelor degree; 5- Some graduate school, 6- Masters degree +
Δ
DCCSS - Dimensional Change Card Sort-Separated Dimensions
^
Values reported are Median [Q1, Q3] for highly skewed variables where Q1 and Q3 are the first and third quartiles.