TABLE 1.
Demographic, clinical, and cognitive data
| VP/VLBW (n = 103) | FT (n = 109) | ||||||
|---|---|---|---|---|---|---|---|
| M | SD | Range | M | SD | Range | p‐Value | |
| Sex (male/female) | 59/44 | 64/45 | .890 | ||||
| Age (years) | 26.7 | ±0.61 | 25.7–28.3 | 26.8 | ±0.74 | 25.5–28.9 | .170 |
| GA (weeks) | 30.5 | ±2.1 | 25–36 | 39.7 | ±1.1 | 37–42 | <.001 |
| BW (g) | 1,318 | ±313 | 630–2070 | 3,392 | ±445 | 2,120–4,670 | <.001 |
| Hospitalization (days) | 73 | ±26.9 | 24–170 | 7 | ±3.0 | 2–26 | <.001 |
| INTI | 11.6 | ±3.7 | 3–18 | n.a. | n.a. | n.a. | n.a. |
| SES a (a.u.) | 29/45/29 | 1–3 | 35/49/25 | 1–3 | .651 | ||
| Maternal age (years) | 29.3 | ±4.7 | 16–41 | 29.4 | ±5.2 | 18–42 | .937 |
| FS‐IQ b (a.u.) | 94.2 | ±12.6 | 64–131 | 102.6 | ±12.0 | 77–130 | <.001 |
Note: Statistical comparisons: sex, SES with χ 2 statistics; age, GA, BW, hospitalization, maternal age and FS‐IQ with two‐sample t tests.
Abbreviations: BW, birth weight; FS‐IQ, full‐scale intelligence quotient; FT, full‐term; GA, gestational age; INTI, intensity of neonatal treatment index; M, Mean; maternal age, maternal age at birth; SD, standard deviation; SES, socioeconomic status at birth; VP/VLBW, very preterm and/or very low birthweight.
a
1 = upper class, 2 = middle class, 3 = lower class.
b
Data are based on 98 VP/VLBW and 106 FT‐born individuals.