Table 1.

Mean incidence of meningitis per 100 000 population by age group in Italy during the period 1994–2012

Age group (years)	No. of cases	Population	Incidence	95% CI
0–4	1187	2 618 794	2·51	(2·38–2·67)
5–9	388	2 679 104	0·80	(0·73–0·89)
10–14	257	2 805 287	0·51	(0·45–0·57)
15–19	532	2 963 629	1·00	(0·92–1·09)
20–24	287	3 424 350	0·47	(0·41–0·52)
⩾25	1215	42 504 580	0·16	(0·15–0·17)

CI, Confidence interval.