From: Rapid intrapartum test for maternal group B streptococcal colonisation and its effect on antibiotic use in labouring women with risk factors for early-onset neonatal infection (GBS2): cluster randomised trial with nested test accuracy study
Maternal GBS colonisation status
Neonatal colonisation present
Selective enrichment culture*
Positive
35/186 (19%)
Negative
12/240 (5%)
Rapid test**
38/184 (21%)
7/203 (3%)