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

Table 4 Accuracy of rapid test in diagnosing maternal GBS colonisation status

		Selective enrichment culture		Sensitivity (95% CI)	Specificity (95% CI)
		Positive	Negative	Sensitivity (95% CI)	Specificity (95% CI)
Rapid test	Positive	198 (86%)	33 (11%)	86% (81–91%)	89% (85–92%)
Rapid test	Negative	31 (14%)	272 (89%)	86% (81–91%)	89% (85–92%)

ISSN: 1741-7015