Table 2.

Prevalence of early-onset and late-onset GBS disease across different time frames in the study period

	Denmark		Netherlands
	Early onset (n=1327)	Late onset (n=234)	Early onset (n=445)	Late onset (n=252)
1997–99	312 (89·4%)	37 (10·6%)	..	..
2000–05	437 (86·4%)	69 (13·6%)	109 (66·9%)	54 (33·1%)
2006–11	310 (80·9%)	73 (19·1%)	138 (65·7%)	72 (34·3%)
2012–17	268 (83·0%)	55 (17·0%)	198 (61·1%)	126 (38·9%)

Numbers are presented as n (%). Early-onset disease was defined as age 0–6 days and late-onset disease as age 7–89 days. GBS=invasive group B Streptococcus.