Trend in Number of Patients on Long-term Opioid Therapy
| Variable | df | Estimate | SE | t Value | P Value |
|---|---|---|---|---|---|
| Interrupted time series, within study sites | |||||
| Intercept | 1 | 1,680 | 38.1 | 44.1 | <.0001 |
| Time (secular trend) | 1 | −133.0 | 40.7 | −3.27 | .004 |
| Change in level | 1 | 60.7 | 7.5 | 8.04 | <.0001 |
| Change in slope | 1 | −75.8 | 8.0 | −9.48 | <.0001 |