Table 2.

Temporal distribution of rotavirus infections in Italy. Distribution (absolute and relative) by age groups of the hospitalizations for rotavirus gastroenteritis (code ICD-9 CM 008.61) in PD in children aged <6 y over the 2005–2012 period

	Age groups
	<1 y of age		1 year		2 years		3 years		4 years		5 years
	0–11 months		12–23 months		24–35 months		36–47 months		48–59 months		60–71 months
	N	%	N	%	N	%	N	%	N	%	N	%	Total
2005	1,599	27.46	1,957	33.60	1,057	18.15	622	10.68	367	6.30	222	3.81	5,824
2006	1,499	27.56	1,898	34.90	994	18.28	559	10.28	294	5.41	195	3.59	5,439
2007	1,498	29.12	1,694	32.93	939	18.25	524	10.19	291	5.66	198	3.85	5,144
2008	1,514	28.44	1,733	32.55	1,011	18.99	562	10.56	302	5.67	202	3.79	5,324
2009	1,246	30.05	1,375	33.16	812	19.59	393	9.48	203	4.90	117	2.82	4,146
2010	1,557	29.37	1,845	34.80	933	17.60	487	9.19	290	5.47	189	3.57	5,301
2011	1,119	29.82	1,252	33.36	670	17.85	371	9.89	207	5.52	134	3.57	3,753
2012	1,156	28.24	1,386	33.86	784	19.15	385	9.41	212	5.18	170	4.15	4,093
2005–2012	11,188	28.67	13,140	33.67	7,200	18.45	3,903	10.00	2,166	5.55	1,427	3.66	39,024

N/% = number/percentage of all hospitalizations in the given year for the specified age group.