Table 2.
Demographics, risk factors for EOS and intrapartum antibiotic prophylaxis.
| Late preterm neonates (n = 178) | Full term neonates (n = 3,267) | p | All (n = 3,445) | |
|---|---|---|---|---|
| Median gestational age, wks | 36.14 (35.29–36.57) | 39.71 (39.0–40.29) | NA | 39.57 (38.86–40.29) |
| Median birth weight, g | 2,582.5 (2,295–2,860) | 3,340 (3,060–3,620) | NA | 3,310 (3,010–3,605) |
| Vaginal delivery | 96 (53.93) | 2,565 (78.49) | <0.0001 | 2,661 (77.24) |
| Prenatal vagino-rectal screening | 66 (37.07) | 3213 (98.35) | <0.0001 | 3,279 (95.17) |
| GBS positive screening | 13 (19.69) | 703 (21.88) | 0.7838 | 716 (21.84) |
| GBS bacteriuria | 0 (0) | 46 (1.41) | 0.2082 | 46 (1.34) |
| Prolonged membrane rupture | 41 (23.03) | 473 (15.31) | 0.0044 | 514 (15.73) |
| Maternal temperature ≥ 38° C | 2 (0.01) | 34 (1.05) | 0.9186 | 36 (1.05) |
| Previous infant with GBS disease | 0 (0) | 2 (0.06) | 0.2050 | 2 (0.05) |
| At least 1 risk factor | 178 (100) | 503 (15.39) | NA | 681 (19.77) |
| IAP | 98 (55.05) | 923 (28.25) | <0.0001 | 1,021 (29.63) |
| Adequate IAP | 59 (60.20) | 516 (55.90) | 0.4785 | 575 (56.32) |
GBS, group B streptococcus; IAP, Intrapartum Antibiotic Prophylaxis; NA, not assessable; wks, weeks.
Highest maternal temperature and duration of membrane rupture were missing for 28 (0.8%) (1 preterm, 27 full term) and 178 (5.2%, all full term) cases, respectively. Percentages are calculated without missing cases.
Data are presented as median (IQR) and n (%).