Serotype distribution and incidence of invasive early onset and late onset group B streptococcal disease amongst infants in Singapore

Table 3 Incidence of EOD and LOD in KK Women’s and Children’s Hospital, Singapore (2010–2018)

Year	Number of live births in KKH	Number of EOD	Number of LOD	Incidence of EOD	Incidence of LOD	Total incidence of EOD and LOD	LOD/EOD
Year	Number of live births in KKH	Number of EOD	Number of LOD	Per 1000 live births			LOD/EOD
2010	11,271	2	4	0.18	0.35	0.53	2.0
2011	11,776	1	1	0.08	0.08	0.17	1.0
2012	11,794	1	6	0.08	0.51	0.59	6.0
2013	11,055	2	4	0.18	0.36	0.54	2.0
2014	11,782	2	3	0.17	0.25	0.42	1.5
2015	12,061	0	1	0.00	0.08	0.08	NA^a
2016	11,894	2	3	0.17	0.25	0.42	1.5
2017	11,882	2	5	0.17^b	0.42^b	0.59^b	2.5^b
Mean	NA	NA	NA	0.13	0.29	0.42	2.0

LOD late onset disease, EOD early onset disease, NA not applicable
^aNo number as there were 0 EOD cases in 2015
^bIncidence of EOD and LOD in 2017 is an underestimate as infants diagnosed with invasive GBS disease beyond October 2017 were not included in this study

ISSN: 1471-2334