Table 2.
Univariable and multivariable Poisson analysis of monthly paediatric dog bite attendance rates in an emergency department
| Variable | Univariable analysis | Female multivariable model |
Male multivariable model |
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| ARR (95% CI) | p value | ARR (95% CI) | P value | ARR (95% CI) | p value | |
| COVID-19 public health measures (Ref=Absent) | ||||||
| Present | 2.29 (1.93 to 2.71) | <0.001 | 1.66 (1.18 to 2.32) | <0.001 | 1.78 (1.29 to 2.44) | <0.001 |
| Time (linear) | 1.01 (1.01 to 1.02) | <0.001 | 1.00 (1.00 to 1.01) | 0.38 | 1.01 (1.00 to 1.01) | 0.03 |
| Year (Ref=2016) | ||||||
| 2017 | 1.06 (0.85 to 1.32) | 0.59 | N/A | N/A | ||
| 2018 | 1.26 (1.02 to 1.55) | 0.03 | N/A | N/A | ||
| 2019 | 1.20 (0.98 to 1.48) | 0.08 | N/A | N/A | ||
| 2020 | 2.20 (1.78 to 2.71) | <0.001 | N/A | N/A | ||
| Month (Ref=January) | ||||||
| February | 1.23 (0.88 to 1.72) | 0.23 | 1.69 (1.02 to 2.88) | 0.05 | 0.95 (0.60 to 1.48) | 0.81 |
| March | 0.97 (0.69 to 1.37) | 0.87 | 1.27 (0.75 to 2.19) | 0.38 | 0.60 (0.37 to 0.96) | 0.04 |
| April | 1.41 (1.02 to 1.97) | 0.04 | 1.66 (0.99 to 2.84) | 0.06 | 1.08 (0.70 to 1.67) | 0.73 |
| May | 1.76 (1.29 to 2.40) | <0.001 | 2.26 (1.41 to 3.76) | <0.01 | 1.10 (0.73 to 1.67) | 0.65 |
| June | 1.57 (1.14 to 2.17) | <0.01 | 1.68 (1.01 to 2.86) | 0.05 | 1.12 (0.74 to 1.70) | 0.60 |
| July | 1.73 (1.27 to 2.37) | <0.001 | 2.05 (1.26 to 3.42) | <0.01 | 1.11 (0.74 to 1.69) | 0.61 |
| August | 1.98 (1.45 to 2.72) | <0.001 | 2.28 (1.39 to 3.83) | <0.01 | 1.26 (0.83 to 1.93) | 0.28 |
| September | 1.36 (0.99 to 1.90) | 0.06 | 1.75 (1.06 to 2.96) | 0.03 | 0.75 (0.48 to 1.17) | 0.20 |
| October | 0.99 (0.69 to 1.41) | 0.94 | 1.28 (0.73 to 2.27) | 0.39 | 0.84 (0.52 to 1.34) | 0.47 |
| November | 0.68 (0.45 to 1.00) | 0.05 | 1.08 (0.60 to 1.93) | 0.81 | 0.48 (0.27 to 0.82) | 0.01 |
| December | 1.03 (0.72 to 1.48) | 0.86 | 1.05 (0.57 to 1.91) | 0.87 | 1.06 (0.67 to 1.66) | 0.81 |
| Sex (Ref=Female) | ||||||
| Male | 0.91 (0.80 to 1.03) | 0.14 | N/A | N/A | ||
| Age (Ref=Toddler, 1–3 years old) | ||||||
| Infant (<12 months) | 0.19 (0.13 to 0.28) | <0.001 | 0.17 (0.09 to 0.29) | <0.001 | 0.21 (0.12 to 0.35) | <0.001 |
| Early childhood (4–6 years old) | 1.75 (1.45 to 2.10) | <0.001 | 1.89 (1.46 to 2.45) | <0.001 | 1.53 (1.17 to 2.00) | <0.01 |
| Middle childhood (7–12 years old) | 1.70 (1.44 to 2.01) | <0.001 | 1.44 (1.13 to 1.85) | <0.01 | 1.83 (1.46 to 2.31) | <0.001 |
| Adolescent (13–17 years old) | 1.30 (1.05 to 1.61) | 0.01 | 0.94 (0.68 to 1.30) | 0.72 | 1.65 (1.23 to 2.19) | <0.001 |
COVID-19 public health measures were present from March 2020 to September 2020.
ARR, attendance rate ratio; N/A, not applicable.