Table 2

Prevalence of opioid use, mean daily oral morphine equivalents use, and days of use pre-THA and post-THA by opioid user status, and change in daily use and days by pre-THA to post-THA status

 Opioid use post-THAOpioid use pre-THA
TotalNoneSomeChronic
Prevalence, n (%)
 Total95255138 (5339)3794 (39.8)593 (6.2)
 None6626 (69.6)4369 (85.0)2146 (56.6)111 (18.7)
 Some2407 (25.3)731 (14.2)1496 (39.4)180 (30.4)
 Chronic492 (5.2)38 (0.7)152 (4.0)302 (50.9)
Daily OME use for group and change in daily OME use,* mg, mean (95% CI)
 Total0.0 (0.0 to 0.0)38.3 (37.6 to 39.0)55.5 (51.4 to 59.7)
 None0.0 (0.0 to 0.0)0.0 (−0.1 to 0.1)−37.7 (−38.4 to −37.0)−55.3 (−59.4 to −51.2)
 Some37.5 (36.6 to 38.4)36.6 (35.7 to 37.5)−1.1 (−2.1 to −0.1)−18.7 (−22.9 to −14.5)
 Chronic57.5 (52.1 to 62.8)56.2 (51.2 to 61.2)18.6 (13.6 to 23.6)0.9 (−3.2 to 5.0)
Days using opioids for group and change in days use,* mean (95% CI)
 Total0.0 (0.0 to 0.0)27.0 (26.1 to 27.9)189.9 (185.9 to 193.9)
 None0.0 (0.0 to 0.0)−0.2 (−0.3 to −0.1)−25.9 (−26.8 to −25.0)−187.0 (−190.9 to −183.1)
 Some24.4 (23.3 to 25.5)22.7 (21.6 to 23.8)−3.0 (−4.3 to −1.7)−164.0 (−168.1 to −159.9)
 Chronic193.0 (188.8 to 197.1)189.0 (184.8 to 193.2)163.3 (159.1 to 167.5)2.6 (−2.3 to 7.5)
  • *Adjusted for age, sex, surgical indication, bilateral status, RxRisk-V comorbidity burden, back pain, year of operation, and prior THA and post-THA other analgesic medication use.

  • OME, oral morphine equivalents; THA, total hip arthroplasty.