Table 1.
Characteristics of mother–infant dyads.
| Total | BMC | UMass | |
|---|---|---|---|
| N, (% of total) | 601 (100) | 134 (22.3) | 467 (77.7) |
| Maternal characteristics | |||
| Age, years, mean (SD) | 30.1 (5.9) | 31.0 (5.8) | 29.8 (5.8) |
| Mode of delivery, N (%) | |||
| Cesarean section | 300 (49.9) | 85 (63.4) | 215 (46.0) |
| Vaginal | 224 (37.3) | 49 (36.6) | 175 (37.5) |
| Unknown | 77 (12.8) | 0 (0) | 77 (16.5) |
| Mother’s insurance, N (%) | |||
| Public | 344 (57.2) | 95 (70.9) | 249 (53.3) |
| Private | 232 (38.6) | 34 (25.4) | 198 (42.4) |
| Uninsured | 18 (3.0) | 5 (3.7) | 13 (2.8) |
| Unknown | 7 (1.2) | 0 (0) | 7 (1.5) |
| Ethnicity/race, N (%) | |||
| Non-Hispanic Black/African American | 87 (14.5) | 45 (33.6) | 42 (9.0) |
| Non-Hispanic White | 284 (47.3) | 9 (6.7) | 275 (58.9) |
| Hispanic or Latino, any race | 100 (16.6) | 21 (15.7) | 79 (16.9) |
| Other | 31 (5.2) | 1 (0.7) | 30 (6.4) |
| Declined/unknown | 99 (16.5) | 58 (43.3) | 41 (8.8) |
| Plurality, N (%) | |||
| Singleton | 429 (71.4) | 113 (84.3) | 316 (67.7) |
| Multiple | 135 (22.5) | 21 (15.7) | 114 (24.4) |
| Unknown | 37 (6.2) | 0 (0) | 37 (7.9) |
| Infant characteristics | |||
| Gestational age, N (%) | |||
| <28 weeks | 66 (11.0) | 20 (14.9) | 46 (9.9) |
| 28–31 weeks | 130 (21.6) | 32 (23.9) | 98 (21.0) |
| 32–37 weeks | 323 (53.7) | 70 (52.2) | 253 (54.2) |
| ≥38 weeks | 82 (13.6) | 12 (9.0) | 70 (15.0) |
| Birth weight, N (%) | |||
| ≤1500g | 191 (31.8) | 56 (41.8) | 135 (28.9) |
| 1501–2500 | 265 (44.1) | 46 (34.3) | 219 (46.9) |
| ≥2500 | 145 (24.1) | 32 (23.9) | 113 (24.2) |
| Sex N (%) | |||
| Female | 276 (45.9) | 61 (45.5) | 215 (46.0) |
| Male | 325 (54.1) | 73 (54.5) | 252 (54.0) |
| Admission diagnosis, N (%)a | |||
| Prematurity | 457 (76.0) | 82 (61.2) | 375 (80.3) |
| Respiratory distress syndrome | 258 (42.9) | 91 (67.9) | 167 (35.8) |
| NAS/prenatal opioid exposure | 52 (8.7) | 3 (2.2) | 49 (10.5) |
| Congenital anomaly | 13 (2.2) | 2 (1.5) | 11 (2.4) |
| SGA/IUGR | 14 (2.3) | 4 (3.0) | 10 (2.1) |
| Otherb | 77 (12.8) | 16 (11.9) | 61 (13.1) |
| Location of birth, N (%) | |||
| Inborn | 558 (92.8) | 134 (100.0) | 424 (90.8) |
| Outborn | 35 (5.8) | 0 (0) | 35 (7.5) |
| Unknown | 8 (1.3) | 0 (0) | 8 (1.7) |
| Disposition, N (%) | |||
| Discharged home | 589 (98.0) | 124 (92.5) | 465 (99.6) |
| Transferred | 12 (2.0) | 10 (7.5) | 2 (0.4) |
| Length of stay, days, mean (SD) | 38.4 (26.9) | 39.5 (27.6) | 38.0 (26.8) |
| Corrected gestational age at discharge or transfer, weeks, mean (SD) | 38.6 (3.2) | 38.0 (2.7) | 38.8 (3.3) |
Infants were discharged or transferred between 9/2017 and 9/2019.
NAS neonatal abstinence syndrome, SGA small for gestation age, IUGR intrauterine growth restriction.
a
One or more admission diagnoses were selected for each patient (select all that apply).
b
Other diagnoses included surgical diagnoses (n = 11), hypoxic ischemic encephalopathy (n = 4), hypoglycemia (n = 9), meconium aspiration (n = 3), and rule out sepsis (n = 6).