Table 2.
Effect of the CPSO opioid-prescribing course on the rate of opioids prescribed (mg ME) per quarter by participating physicians
| COURSE PARTICIPANTS MATCHED WITH CONTROL PHYSICIANS |
EFFECT BEFORE COURSE*
|
EFFECT IMMEDIATELY AFTER COURSE†
|
LONG-TERM EFFECT AFTER COURSE‡
|
AFTER COURSE VS BEFORE COURSE
|
||||
|---|---|---|---|---|---|---|---|---|
| ESTIMATE, mg ME | P VALUE | ESTIMATE, mg ME | P VALUE | ESTIMATE, mg ME | P VALUE | ESTIMATE, mg ME | P VALUE | |
| All physicians | ||||||||
| • Patients aged 15–64 y | −7137 | .1022 | −5103 | .2215 | −787 | .8578 | 1338 | .6340 |
| • Patients aged ≥ 65 y | −465 | .5454 | −243 | .7410 | −314 | .6455 | −245 | .6275 |
| Referred physicians | ||||||||
| • Patients aged 15–64 y | −37 801 | < .001 | −26 857 | < .001 | −25 595 | .0002 | −1554 | .7216 |
| • Patients aged ≥ 65 y | −3599 | .0029 | −2099 | .0687 | −1183 | .2724 | −1296 | .1023 |
| Self-referred physicians | ||||||||
| • Patients aged 15–64 y | 3310 | .4824 | 2186 | .6275 | 7645 | .1044 | 2391 | .4355 |
| • Patients aged ≥ 65 y | 586 | .4805 | 366 | .6455 | −30 | .9674 | 77 | .8882 |
CPSO—College of Physicians and Surgeons of Ontario, mg ME—milligrams of morphine equivalent.
*
1 year before course versus 2–5 years before course.
†
1 year after course versus 2–5 years before course.
‡
2 years after course versus 2–5 years before course.