Table 3.

Interrupted Time-Series Analysis of Proportion of Opioid Prescriptions for >12 tabs

Full Segmented Regression Model	Coefficient	t-statistic	P-value	95% Confidence Interval
Intercept (β0)	0.354	70.6	<0.0001	0.344	0.365
Baseline trend (β1)	−0.006	−7.8	<0.0001	−0.004	−0.007
Level change after PDMP (β2)	0.135	1.58	0.13	−0.004	0.032
Trend change after PDMP (β3)	0.002	1.09	0.29	−0.002	0.005
Post-treatment linear trend	−0.004	−2.45	0.02	−0.001	−0.007