Demographic information for study subjects

Total (n = 61)Male (n = 37) (61%)Female (n = 24) (39%)
Birth weight, g3,294.95 ± 432.23,363.6 ± 408.83,190.5 ± 554.6
Gestational age, wk39.2 ± 1.437.3 ± 9.138.9 ± 1.5
Age at scanning, d123.6 ± 13122.3 ± 12.6125.5 ± 13.4a
Sex, % girlsa39%
Ethnicitya
White15 (24.59%)8 (21.62%)7 (29.16%)
Black1 (1.64%)1 (2.70%)0 (0%)
Hispanic34 (55.73%)21 (56.75%)13 (54.16%)
Native American3 (4.92%)2 (5.40%)1 (4.16%)
Other4 (6.55%)3 (8.10%)1 (4.16%)
Unknown4 (6.55%)2 (5.40%)2 (8.33%)
  • Note:—Values are depicted as means ± standard deviations unless otherwise indicated.

  • a P < .05.