Variable | Category | IRR | 95% CI | P value |
---|---|---|---|---|
Month | January | 2.11 | 0.80 to 5.55 | 0.130 |
 | February | 2.55 | 1.04 to 6.24 | 0.040 |
 | March | 2.45 | 1.00 to 6.01 | 0.051 |
 | April | 1.0 (reference) |  |  |
 | May | 2.24 | 0.86 to 5.88 | 0.100 |
 | June | 1.45 | 0.53 to 4.01 | 0.470 |
 | July | 2.15 | 0.82 to 5.66 | 0.121 |
 | August | 2.62 | 1.00 to 6.85 | 0.050 |
 | September | 3.74 | 1.47 to 9.53 | 0.006 |
 | October | 2.31 | 0.89 to 6.02 | 0.085 |
 | November | 2.69 | 1.09 to 6.65 | 0.032 |
 | December | 1.89 | 0.71 to 5.01 | 0.203 |
Alert | Previous | 1.0 (reference) | Â | Â |
 | Transition | 1.26 | 0.64 to 2.47 | 0.506 |
 | Implemented | 0.64 | 0.43 to 0.97 | 0.036 |