Table 1.
Sample demographics and differences between preterm and full-term mother-infant dyads.
| Total Sample (n=84) | Preterm Group (n=37) | Full-term Group (n=47) | ||
|---|---|---|---|---|
| Mean ± SD; or N (%); or Median (IQR) | p-value | |||
| Infant Factors | ||||
| EGA | 33.8 ±5.8 | 27.8 ±2.7 | 38.6 ±1.1 | <.0001 |
| Female Gender | 45 (54%) | 18 (49%) | 27 (57%) | .33 |
| Non Caucasian Race | 51 (61%) | 16 (43%) | 35 (74%) | .002 |
| Birthweight (g) | 1104.0 ±416.7 | |||
| Apgars at 1 min | 3.7 ±2.5 | |||
| Apgars at 5 min | 5.8 ±2.06 | |||
| Breast Milk Fed | 32 (87%) | |||
| Breast Milk at Discharge | 18 (49%) | |||
| PDA | 9 (24%) | |||
| IUGR | 3 (8%) | |||
| NEC | 4 (11%) | |||
| Brain Injury (n=36) | 8 (22%) | |||
| ROP | 11 (30%) | |||
| PMA at Discharge (n=35) | 39.7 ±3.4 | |||
| LOS (days) (n=35) | 83.4 ±40.9 | |||
| Infant Medical Procedures | ||||
| Days on TPN | 11 (6—18.5) | |||
| Days on Vent | 1 (0–16.50) | |||
| NIMV days | 13.4 ±18.1 | |||
| Days on CPAP | 2.0 ±4.3 | |||
| Days on Nasal Cannula | 28.5 ±24.7 | |||
| Maternal Factors | ||||
| Maternal Age | 28.4 ±6.2 | 29.7 ±6.4 | 27.4 ±6.0 | .13 |
| Cesarean Section Delivery | 43 (51%) | 27 (71%) | 16 (34%) | .001 |
| Multiple Birth | 7 (8%) | 5 (13%) | 2 (4%) | .14 |
| Other Children (n=45) | 56 (67%) | 21 (55%) | 35 (78%) | .03 |
| Marital Status, Single (n=45, full-term) | 16 (20%) | 7 (19%) | 9 (20%) | .86 |
| Income <$25,000 (n=36, preterm; n=43, full-term) | 40 (48%) | 16 (43%) | 24 (56%) | .45 |
| College Degree | 26 (31%) | 15 (41%) | 11 (24%) | .14 |
Note: Columns shaded black indicate variables that are unique to the preterm group and were not collected for full-term mother-infant dyads. EGA: Estimated Gestational Age; PDA: Patent Ductus Arteriosis; IUGR: Intrauterine Growth Restriction; NEC: Necrotizing Enterocolitis; PVL/IVH: Periventricular Leukomalacia/Intervertebral Hemorrhage; ROP: PMA: Postmenstrual Age; Retinopathy of Prematurity; LOS: Length of Stay; TPN: Total Parenteral Nutrition; NIMV: Non-Invasive Mechanical Ventilation; CPAP: Continuous Positive Airway Pressure
p-value is from investigations of differences between full-term and preterm mother-infant dyads using independent samples t tests (for continuous variables) and chi-square analysis (for categorical variables). Bolded values indicate significance, p <.05