Table 4.

International estimates for the incidence of meningococcal disease in selected populations

Setting	Population	Year	Incidence
Australia [4]	0–4 years 5–14 years	2006–2007	8·4/100 000 person-years 1·1/100 000 person- years
Western Australia [28]	0–13 years	1990–1995	5·2 to 10·5/100 000 person-years
Five Australian states [30]	0–4 years, non-indigenous 5–14 years, non-indigenous	2003–2006	9·2/100 000 person-years 1·7/100 000 person-years
Denmark [29]	All ages	1980–1999	4·3/100 000 person-years at risk
Barcelona, Spain [22]	<1 year 1–4 years 5–9 years 10–14 years	1987–1992	98·7/100 000 person-years 65·0/100 000 person-years 22·0/100 000 person-years 5·6/100 000 person-years
An English electoral ward [31]	0–4 years, boys 0–4 years, girls	1991–1999	41·0/100 000 person-years 33·7/100 000 person-years