Do Acupuncture Services Reduce Subsequent Utilization of Opioids and Surgical Interventions Compared to Noninvasive Therapies among Patients with Pain Conditions?

OBJECTIVE

To compare prescribed opioid use and invasive surgical interventions between patients using acupuncture and those using non-steroidal anti-inflammatory drugs (NSAIDs)/physical therapy (PT).

DESIGN

Retrospective observational study of administrative claims.

SETTING

Large commercial insurance plan.

SUBJECTS: 52 346 each treated with either acupuncture or NSAIDs/PT.

METHODS

Users of acupuncture and NSAIDs/PT were identified from January 1, 2014, to December 31, 2017. The first date of each service was defined as the index date. Acupuncture patients were 1:1 propensity score matched to the NSAIDs/PT group on baseline characteristics. Outcomes included opioid use, subsequent invasive surgical procedures, healthcare utilization such as hospitalizations or emergency department (ED) visits, and costs. These were assessed in the 12-month period before index date (baseline) and 12-month period following index date (follow-up) using difference-in-difference (DID) analysis. Results for opioid use were stratified by those with and without baseline opioid use.

RESULTS

The acupuncture group had fewer patients initiating opioids post-index both among those with (49.2% vs 56.5%, P < .001) and without (15.9% vs 22.6%, P < .001) baseline opioid use. There was a small increase in invasive surgical procedures with acupuncture (3.1% vs 2.8%, P = .006). A reduction in ED visits was observed with acupuncture (DID -4.6% for all-cause; -3.3% for pain-related, all P < .001). Acupuncture was associated with higher total medical and pharmacy costs (DID +$1331 per patient, P = .006).

CONCLUSIONS

Acupuncture showed a modest effect in reducing opioid use and ED visits. More research on acupuncture's place in emergency care, pain relief, and comparison to other types of non-opioid treatment is needed.