Incidence of hospitalised cases of dog-bite injuries in people aged 0 to <20 years in the preimplementation and postimplementation period of BSL in the province of Manitoba
| In people aged 0–<20 years | |||||
| Preimplementation period of BSL* | Postimplementation period of BSL | p Value of difference in incidence between preimplementation and postimplementation period | |||
| Total Number | Incidence (95% CI†) per 100 000 person-years | Total Number | Incidence (95% CI†) per 100 000 person-years | ||
| All Manitoba jurisdictions | 310‡ | 6.91 (6.14 to 7.68)§ | 157 | 5.15 (4.38 to 6.03)§ | 0.003 |
| All jurisdictions that did not implement BSL in the years 1984–2006 | 226 | 7.09 (6.19 to 8.08)¶ ** | NA | NA | NA |
| City of Brandon | 14 | 5.26 (2.88 to 8.83)†† ‡‡ | NA | NA | NA |
| All jurisdictions that implemented BSL sometime during years 1984–2006§§ | 84 | 6.46 (5.15 to 8.00)¶ | 157 | 5.15 (4.38 to 6.03)** | 0.094 |
| City of Winnipeg | 61 | 5.99 (4.58 to 7.70)†† | 141 | 5.02 (4.22 to 5.92)‡‡ | 0.247 |
↵* The entire study period (1984–2006) is considered as pre-BSL implementation period for all jurisdictions that did not implement BSL during our study period.
↵† 95% Poisson CI.
↵‡ Includes 226 hospitalisations from jurisdictions with no BSL and 84 hospitalisations pre-BSL implementation from jurisdictions with BSL.
↵§ Percentage change in incidence=−25.5%.
↵¶ Different at p value=0.469.
↵** Different at p value=0.002 and percentage change in incidence=−27.4%.
↵†† Different at p value=0.663.
↵‡‡ Different at p value=0.864.
↵§§ Includes 16 jurisdictions with ‘pit-bull’ specific bans listed in table 1.
BSL, breed-specific legislation.