Table 1.

Daily admissions for AIS.

	Mean daily admissions		IRR (95% CI)	p-Value
	Control period	Study period
Leading up to wave 1	39.7	41.7	1.06 (0.92–1.23)	0.39
Wave 1	39.6	34.1	0.74 (0.63–0.88)	< 0.01
Between waves 1 and 2	39.0	38.2	0.94 (0.79–1.11)	0.45
Wave 2	39.9	38.3	0.79 (0.64–0.97)	0.03
Wave 3	39.6	39.4	0.81 (0.64–1.04	0.10
Wave 4	39.5	40.9	0.94 (0.74–1.20)	0.62

IRR: incidence rate ratio; CI: confidence interval.