Table 1.
Infant Demographic Characteristics at Enrollment and 40 Weeks Postmenstrual Age.
| Variable | N | Min | Max | Mean(SD) or % |
|---|---|---|---|---|
| Gender: Male (%) | 40 | 42 | ||
| Bodyweight at birth (gm) | 40 | 450 | 1,460 | 1,026 (276) |
| Length at birth (cm) | 40 | 25.0 | 42.5 | 35.5 (3.8) |
| Head circumference (cm) | 40 | 20.0 | 28.7 | 25.3 (2.2) |
| Gestational age (weeks) | 40 | 25.0 | 31.5 | 28.7 (1.7) |
| Race: African American (%) | 40 | 57.5 | ||
| 1-min Apgar score | 40 | 1 | 8 | 4.5 (2.4) |
| 5-min Apgar score | 40 | 1 | 9 | 7.1 (1.7) |
| CPR at birth (0–6) | 40 | 1 | 4 | 2.4 (0.8) |
| Public-assistance: WIC (%) | 40 | 63 | ||
| Medical complications at | 37 | 1 | 6 | 3.8 (1.4) |
| 40 weeks postmenstrual age (0–16) | ||||
| Technology-dependence at 40 weeks | 37 | 1 | 3 | 0.1 (0.5) |
| postmenstrual age (0-6) | ||||
| Oxygen | 37 | 2.7 | ||
| Apnea monitor | 37 | 2.7 | ||
| Gastrostomy-tube | 37 | 0.0 | ||
| Ventilator | 37 | 0.0 | ||
| Tracheostomy | 37 | 0.0 | ||
| Medications | 37 | 5.4 |
Note. Min = minimum; Max = maximum; SD = standard deviation; CPR (0-6) = number of cardiopulmonary resuscitation treatment received at birth including oxygen, bagging and mask, continuous positive airway pressure (CPAP), intubation, chest compression, and epinephrine; WIC = Women, Infants, and Children Food and Nutrition Service.