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. 1999 May-Jun;4(4):257–263.

TABLE 3:

Clinical risk factors of neonatal group B streptococcal (GBS) disease identified based on delivery mode

Clinical risk factor Delivery mode
Vaginal n= 76* Elective caesarean section deliveries n= 10* Emergency caesarean section deliveries n= 15*
EOD (%) LOD (%) EOD (%) LOD (%) EOD (%) LOD (%)
Intrapartum fever >38°C 9/54 (16.7) 1/12 (8.3) 1/6 (16.7) 1/3 (33.3) 3/10 (30) 1/2 (50)
Chorioamnionitis 6/46 (13.0) 0/10 2/6 (33.3) 0/2 2/10 (20) 0/1
GBS positive status 1/58 (1.7) 1/18 (5.6) 1/6 (16.7) 0/4 1/13 (7.7) 0/2
Prolonged rupture of membranes ≥12 h 20/49 (40.8) 4/11 (36.4) 5/6 (83.3) 0/3 8/11 (72.7) 0/1
Prolonged rupture of membranes ≥18 h 9/49 (18.4) 3/11 (27.3) 2/6 (33.3) 0/3 5/11 (45.5) 0/1
Gestational age <37 weeks 23/53 (43.4) 7/16 (43.8) 6/6 (100) 1/3 (33.3) 7/13 (53.8) 1/2 (50)
*

Denominator totals for early-onset disease (EOD) and late-onset disease (LOD) do not always total this number because of missing data