Table 2 Estimated annual incidence rate of reported and medically treated dog bites among adults and children: comparison of ICARIS (1994) and ICARIS-2, USA
CharacteristicIncidence rate per 1000 population (95% CI)p Value†
1994 ICARIS*ICARIS-2
Adults
Dog bites
    Overall16.1 (12.1 to 20.0)16.6 (13.4 to 19.9)0.8262
    Sex
        Male21.3 (14.9 to 27.7)19.0 (14.0 to 24.0)0.5765
        Female11.2 (6.6 to 15.9)14.4 (10.1 to 18.7)0.3210
    Age group (years)
        18–2429.3 (13.3 to 45.3)30.2 (15.8 to 44.5)0.9374
        25–3419.7 (11.6 to 27.9)18.3 (10.3 to 26.3)0.7984
        35–4421.2 (10.8 to 31.6)13.4 (7.5 to 19.4)0.2035
        ⩾457.9 (4.0 to 11.8)13.8 (9.6 to 17.9)0.0453
Medically attended bites2.0 (0.7 to 3.3)3.0 (1.6 to 4.5)0.3037
Children
Dog bites
    Overall24.5 (18.2 to 30.8)13.1 (9.8 to 16.3)0.0018
    Sex
        Boys29.2 (20.4 to 38.0)12.7 (8.5 to 16.9)0.0010
        Girls20.0 (11.0 to 28.9)13.5 (8.6 to 18.5)0.2231
    Age group (years)
        0–424.9 (14.2 to 35.5)8.7 (3.9 to 13.5)0.0066
        5–928.4 (17.0 to 39.7)18.7 (11.9 to 25.5)0.1516
        10–1421.0 (12.3 to 29.6)12.2 (7.0 to 17.4)0.0882
Medically attended bites6.4 (3.6 to 9.2)3.2 (2.0 to 5.2)0.0470
  • *ICARIS, 1994 data previously published by Sacks et al.12

  • †The p value is based on a standard t test for the comparison of differences between two proportions within a single category of a characteristic (eg, males), across studies.