Table 1.

Distribution of pediatric cases according to age group and sex, adapted from Istituto Superiore di Sanità (69)

Age group (year-old)	N. cases	%	Females	Males	Not known	% Females	% Males
0-1	566	13.3	254	309	3	45.1	54.9
2-6	745	17.6	344	401	NA	46.2	53.8
7-17	2,933	69.1	1,464	1,469	NA	49.4	50.1
<18	4,244	100.0	2,062	2,179	3	48.6	51.4