Table 1.
Demographics
| No BSI (n=162) | BSI (n=82) | |
|---|---|---|
| Neonatal variables | ||
| Mean ± std or N (%) | ||
|
| ||
| BW (g)* | 1096 ± 245 | 835 ± 271 |
| GA (weeks)* | 28.5 ± 1.9 | 26.5 ± 2.1 |
| Race | ||
| Non-Hispanic Black | 56 (35) | 29 (35) |
| Non-Hispanic White | 50 (31) | 31 (38) |
| Hispanic or Latino | 53 (33) | 20 (24) |
| Other | 3 (2) | 2 (2) |
| Sex (male) | 87 (54) | 47 (57) |
| 5-minute Apgar score <5 | 8 (4.9) | 10 (12.2) |
| DR resuscitation | ||
| CPR | 3 (2) | 5 (6) |
| Intubation* | 76 (47) | 67 (82) |
| Length of hospital stay (days) median (min-max) | 63 (9–147) | 102 (26–244) |
| Postnatal glucocorticoids | 26 (68) | 12 (32) |
| Comorbidities | ||
| NEC* | 6 (4) | 12 (15) |
| IVH* | 8 (5) | 11 (13) |
| BPD* | 23 (14) | 42 (51) |
| ROP* | 51 (32) | 57 (70) |
|
| ||
| Maternal variables | ||
|
| ||
| Age (years) mean ± std | 27.6 ± 7.1 | 27.2 ± 6.0 |
| Education (<High school)** | 53 (33) | 25 (30) |
| Insurance (private) | 33 (20) | 14 (17) |
| Antenatal steroids | 112 (70) | 56 (69) |
| Antenatal antibiotics | 119 (74) | 59 (72) |
| Delivery mode (cesarean) | 103 (64) | 49 (60) |
| PROM | 31 (20) | 10 (12) |
*
p<0.05
**
61 infants had missing maternal education levels
BW-Birth weight
GA-gestational age
DR-delivery room
CPR-cardiopulmonary resuscitation
NEC-proven necrotizing enterocolitis, modified Bell’s stage 2 or greater, ref# 27
IVH-intraventricular (grade 3) or intraparenchymal hemorrhage (grade 4)
BPD (need for supplemental oxygen at 36 weeks postmenstrual age)
ROP-Retinopathy of prematurity (any stage)
PROM-premature rupture of membranes > 24 hours prior to delivery