Table 3

Results of segmented regression model assessing the impact of the intervention on opioid use

Patients dispensed an opioid per 1000 persons per month95% CIP value
Intercept (rate in January 2015)131.42(129.39, 133.46)<0.001
Preintervention trend as change in rate per month (January 2015 to September 2017)0.03(−0.05, 0.11)0.48
Change in level in the month of the intervention (October 2017)0.12(−2.04, 2.28)0.91
Change in trend after the intervention (November 2017 to August 2019)−0.51(−0.69, −0.34)<0.001