Epidemiological and clinical aspects of hepatitis B virus infection in Italy over the last 50 years

Table 1 Incidence rate of acute hepatitis B in Italy: Cases per 100000 inhabitants per year, according to age classes

Age classes	1985	1990	1995	2000	2005	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
0-14	6.00	1.00	1.00	0.10	0.00	0.00	0.00	0.00	0.04	0.10	0.03	0.05	0.00	0.00	0.03	0.03	0.00
15-24	41.00	17.00	6.00	2.00	5.00	0.50	0.50	0.45	0.40	0.30	0.28	0.30	0.20	0.15	0.32	0.08	0.08
> 25	7.00	4.00	3.00	2.00	1.80	-	-	-	-	-	-	-	-	-	-	-	-
25-34	-	-	-	-	-	1.20	1.20	1.20	0.80	0.70	0.46	0.33	0.30	0.23	0.34	0.26	0.26
35-54	-	-	-	-	-	1.90	1.80	2.00	1.70	1.90	1.76	1.40	1.10	1.04	0.76	0.69	0.34
> 55	-	-	-	-	-	0.70	0.50	0.50	0.60	0.70	0.51	0.46	0.60	0.48	0.39	0.38	0.20
Total	12.00	5.00	3.00	2.00	1.30	1.00	0.90	1.00	0.85	0.90	0.80	0.70	0.60	0.51	0.44	0.38	0.21