Table 2.

Results of linear regression for the interrupted time series analysis.

Variable	Estimate	95% CI	t	P-value
β0	7195.8	6712.3 to 7679.4	29.2	<0.0001
β1	120.8	109.4 to 132.1	20.9	<0.0001
β2	−7636.4	−8904.6 to −6368.3	−11.8	<0.0001
β3	−3355.3	−4883.9 to −1826.7	−4.3	<0.0001
β4	364.2	107 to 621.3	2.8	0.002
β5	−1939.1	−2742.5 to −1135.7	−4.7	<0.0001