Table 1.
Participant Characteristics
| Characteristic | n (%) | ||
|---|---|---|---|
| All Infants (n = 32) | Full-Term Infants (n = 19) | Preterm Infants (n = 13) | |
| Infant age, mo, M (SD)a | 5.04 (1.16) | 5.35 (1.17) | 4.60 (1.02) |
| Infant birth weight, lb, M (SD) | 5.78 (1.92) | 6.9 (0.85) | 3.96 (1.73) |
| Gestational age, wk | |||
| >37 | 19 (59.4) | 19 (100) | 0 (0) |
| 32–37 | 6 (18.7) | 0 (0) | 6 (46.2) |
| 28–32 | 5 (15.6) | 0 (0) | 5 (38.4) |
| <28 | 2 (6.3) | 0 (0) | 2 (15.4) |
| Infant ethnicity | |||
| Hispanic | 0 (0) | 0 (0) | 0 (0) |
| Not Hispanic | 30 (93.7) | 19 (100) | 11 (84.6) |
| Not reported | 2 (6.3) | 0 (0) | 2 (15.4) |
| Infant race | |||
| White | 19 (59.4) | 15 (78.9) | 4 (30.8) |
| Black | 4 (12.5) | 0 (0) | 4 (30.8) |
| Asian | 1 (3.1) | 0 (0) | 1 (7.7) |
| Multiracial | 5 (15.6) | 4 (21.1) | 1 (7.7) |
| Not reported | 3 (9.4) | 0 (0) | 3 (23.0) |
| Parent age, yr | |||
| 18–35 | 25 (78.1) | 16 (84.2) | 9 (69.2) |
| 36–55 | 4 (12.5) | 1 (5.3) | 3 (23.1) |
| ≥56 | 1 (3.1) | 1 (5.3) | 0 (0) |
| Not reported | 2 (6.3) | 1 (5.3) | 1 (7.7) |
| Parent ethnicity | |||
| Hispanic | 0 (0) | 0 (0) | 0 (0) |
| Not Hispanic | 30 (93.7) | 19 (100) | 11 (84.6) |
| Not reported | 2 (6.3) | 0 (0) | 2 (15.4) |
| Parent race | |||
| White | 22 (68.7) | 17 (89.4) | 5 (38.4) |
| Black | 4 (12.5) | 0 (0) | 4 (30.8) |
| Asian | 2 (6.3) | 1 (5.3) | 1 (7.7) |
| Multiracial | 1 (3.1) | 1 (5.3) | 0 (0) |
| Not reported | 3 (9.4) | 0 (0) | 3 (23.1) |
| Parent education | |||
| High school or diploma, no degree | 6 (18.8) | 3 (15.8) | 3 (23.1) |
| Associate’s degree | 3 (9.4) | 1 (5.2) | 2 (15.3) |
| Bachelor’s or master’s degree | 15 (46.8) | 9 (47.4) | 6 (46.2) |
| Doctorate or professional degree | 7 (21.9) | 6 (31.6) | 1 (7.7) |
| Not reported | 1 (3.1) | 0 (0) | 1 (7.7) |
a
Adjusted age used for preterm infants.