Electroacupuncture with usual care for patients with non-acute pain after back surgery: Cost-effectiveness analysis alongside a randomized controlled trial

Abstract

Electroacupuncture (EA) is used to treat pain after back surgery. Although this treatment is covered by national health insurance in Korea, evidence supporting its cost-effectiveness and contribution to the sustainability of the national health care system has yet to be published. Therefore, an economic evaluation, alongside a clinical trial, was conducted to estimate the cost-effectiveness of EA and usual care (UC) versus UC alone to treat non-acute low back pain (LBP). In total, 108 patients were recruited and randomly assigned to treatment groups; 106 were included in the final cost utility analysis. The incremental cost-effectiveness ratio of EA plus UC was estimated as 7,048,602 Korean Rate Won (KRW) per quality-adjusted life years (QALYs) from the societal perspective (SP). If the national threshold was KRW 30 million per QALY, the cost-effectiveness probability of EA plus UC was an estimated 85.9%; and, if the national threshold was over KRW 42,496,372 per QALY, the cost-effectiveness probability would be over 95% percent statistical significance. Based on these results, EA plus UC combination therapy for patients with non-acute LBP may be cost-effective from a societal perspective in Korea.