Case classification | Age in years | Total | ||||
<1 | 1 | 2 | 3 | 4 | ||
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 |