Table 4

Distribution of fatal AHT/fatal TBI cases for children under 5 years old, by year of age, USA, 2003–2007

Case classification	Age in years					Total
Case classification	<1	1	2	3	4	Total
AHT—definite or presumptive	393	140	85	45	36	699
AHT—probable	51	13	8	4	5	81
Total AHT	444	153	93	49	41	780
Percentages by year of age^*	57%	20%	12%	6%	5%
Rates (per 100 000 person-years) by year of age	2.14	0.75	0.45	0.24	0.20	0.76

TBI without AHT—assault-related	596	248	175	115	78	1212
TBI without AHT—unintentional	642	735	620	560	461	3018
Total TBI without AHT^†	1238	983	795	675	539	4230
Percentages by year of age^*	29%	23%	19%	16%	13%
Rates (per 100 000 person-years) by year of age	5.97	4.79	3.88	3.32	2.68	4.14