Cost-effectiveness of acupuncture treatment in patients with chronic neck pain
Willich et al. · Pain · 2006
Evidence Level
STRONGOBJECTIVE
To assess the costs and cost-effectiveness of adding acupuncture to routine care in patients with chronic neck pain
WHO
3,451 adult patients with chronic neck pain (> 6 months)
DURATION
3 months of follow-up
POINTS
10–15 sessions in line with physician training (> 140 hours of training)
🔬 Study Design
Acupuncture group
n=1753
Immediate acupuncture + routine care
Control group
n=1698
Routine care + acupuncture after 3 months
📊 Results in numbers
Additional cost of acupuncture
QALYs gained
Cost-effectiveness ratio (ICER)
Mean number of sessions
📊 Outcome Comparison
Total costs (3 months)
QALYs gained
This large German study showed that acupuncture, when added to conventional medical care, improved quality of life in patients with long-standing neck pain. Although it cost more because of the acupuncture sessions, the benefit obtained justifies the investment by international cost-effectiveness standards.
Article summary
Plain-language narrative summary
This German study represents one of the first and most comprehensive cost-effectiveness analyses of acupuncture for chronic neck pain, involving 3,451 patients in a multicenter randomized clinical trial. The research was conducted to assess whether adding acupuncture to routine medical care would be economically justifiable for the German health system. The context is relevant, as chronic neck pain represents a significant public health problem, generating substantial costs in medical visits, medications, work absences, and disability. The growing use of complementary therapies, especially acupuncture, demanded robust scientific evidence on its cost–benefit relationship.
The methodology used was rigorous, following international standards for economic evaluations in health. Participants were adults (≥ 18 years) with a clinical diagnosis of chronic neck pain lasting more than 6 months. The intervention group received acupuncture immediately, while the control group had access to treatment after 3 months, allowing for an adequate comparison. Participating physicians had a minimum of 140 hours of training in acupuncture, ensuring quality of treatment.
The protocol included 10–15 sessions per patient over 3 months. Data collection used complete databases from German social health insurance, providing accurate information on resource utilization and direct costs. Indirect costs were calculated using the human capital method, estimating €78 per day of work absence. Quality of life was measured by the SF-36 questionnaire, subsequently converted to quality-adjusted life-years (QALYs) using the SF-6D algorithm.
The results showed that patients in the acupuncture group had significantly higher total costs (€925.53 ± 1,551.06 versus €648.06 ± 1,459.13), with a mean difference of €277.47. This increase was almost entirely due to the costs of the acupuncture sessions (€361.76 ± 90.16) and was not offset by reductions in other cost components during the study period. Interestingly, when diagnosis-specific costs excluding acupuncture were analyzed, treated patients had slightly lower costs (€80.11 ± 538.20 versus €115.79 ± 85), suggesting a potential reduction in the use of other health services. The QALY gain was modest but statistically significant: 0.024 ± 0.004 additional QALYs in the acupuncture group.
The incremental cost-effectiveness ratio (ICER) was calculated at €12,469 per QALY gained in the overall analysis and €13,618 in the diagnosis-specific analysis. These values are below the €50,000-per-QALY threshold used as a reference, indicating that acupuncture is cost-effective for chronic neck pain. Sensitivity analyses explored different scenarios, varying the duration of therapeutic effects from 6 months to 4 years and session costs from €15 to €55. The results remained robust, with the probability of cost-effectiveness close to 100% at the €50,000 threshold.
Modeling of prolonged effects showed that, even assuming a duration of only 6 months, the probability of cost-effectiveness remained high (99.5%). The clinical implications are significant. The study provides solid economic evidence for including acupuncture in the therapeutic armamentarium for chronic neck pain. The results are comparable to other cost-effectiveness analyses in acupuncture, such as Wonderling et al.'s study for chronic headache, which found similar ICERs.
Compared with other interventions for back pain, acupuncture proved competitive, with an ICER lower than that of surgical stabilization (€73,310) and comparable to osteopathy (€5,520). The study has important limitations. The 3-month follow-up period precludes the assessment of long-term economic effects. The cost source was limited to social-insurance databases and did not include private expenditures such as over-the-counter medications.
The SF-36-to-QALY conversion may not fully capture the specific benefits of acupuncture. In addition, generalizing the results to other health systems requires caution, given the specific context of the German system.
Strengths
- 1Largest sample for a cost-effectiveness analysis of acupuncture for neck pain
- 2Use of complete databases from the German health insurers
- 3Rigorous economic methodology with multiple sensitivity analyses
- 4Robust results across different scenarios of duration and costs
Limitations
- 1Follow-up period limited to 3 months
- 2Exclusion of private costs and over-the-counter medications
- 3Possible underestimation of acupuncture-specific benefits
- 4Limited generalizability to other health systems
Expert Commentary
Dr. Marcus Yu Bin Pai
MD, PhD · Pain Medicine · Physical Medicine and Rehabilitation · Medical Acupuncture
▸ Clinical Relevance
Chronic neck pain consumes substantial resources in any organized health system — physical therapy, long-term medications, work absences, cycling among specialists. What this study brings to the table is a concrete economic answer: with an ICER of €12,469 per QALY, acupuncture for chronic neck pain sits well below the €50,000 threshold typically adopted as a cost-effectiveness reference, in a range comparable to interventions already established in treatment guidelines. In outpatient practice, this changes the argument the physician uses when indicating the technique: it is not a niche complementary therapy but an option that passes economic scrutiny when integrated into routine care. Patients with neck pain for more than six months, with persistent functional limitation despite conventional analgesia, are precisely the profile to whom these data speak directly.
▸ Notable Findings
Two findings deserve special attention. First, the gain of 0.024 QALYs in just three months is modest in absolute terms but sufficient to support robust cost-effectiveness, with a probability close to 100% at the adopted threshold — indicating consistency of effect, not dependence on a single result. Second, diagnosis-specific costs excluding acupuncture were numerically lower in the treated group (€80.11 versus €115.79), suggesting decompression of the use of other health services. This signal is preliminary at the three-month horizon but biologically plausible: patients with better pain control tend to seek less urgent care, fewer return visits, and fewer tests. Sensitivity analyses varying the duration of effect from six months to four years maintained cost-effectiveness in all scenarios, lending solidity to the economic model.
▸ From My Experience
In my practice in the musculoskeletal pain clinic, chronic neck pain is one of the diagnoses in which I see earlier functional response with acupuncture — typically between the third and fifth sessions, the patient already reports noticeable improvement in cervical mobility and reduction in pain intensity. The 10.3-session protocol reported in the study is close to what we use in practice: generally 10 to 12 sessions in the acute phase of treatment, with progressive spacing and quarterly maintenance in cases of frequent recurrence. The combination I have routinely used includes acupuncture with supervised cervical strengthening exercise — patients who undergo acupuncture alone without muscular rehabilitation tend to have less durable gains. I avoid prescribing acupuncture in isolation when there is an unresolved acute neuropathic radicular component; in those cases, I stabilize first and introduce the technique in the subacute phase. The profile that responds best, over the years I have followed these patients, is that of pure mechanical neck pain or pain associated with active trigger points, without significant foraminal instability — exactly the profile this trial selected.
Full original article
Read the full scientific study
Pain · 2006
DOI: 10.1016/j.pain.2006.06.006
Access original articleScientific Review
Marcus Yu Bin Pai, MD, PhD
CRM-SP: 158074 | RQE: 65523 · 65524 · 655241
PhD in Health Sciences, University of São Paulo. Board-certified in Pain Medicine, Physical Medicine and Rehabilitation, and Medical Acupuncture. Scientific review and curation of every entry in this library.
Learn more about the author →Medical disclaimer: This content is for educational purposes only and does not replace consultation, diagnosis, or treatment by a qualified professional. Some information may be assisted by artificial intelligence and is subject to inaccuracies. Always consult a physician.
Content reviewed by the medical team at CEIMEC — Integrated Centre for Chinese Medicine Studies, a reference in Medical Acupuncture for over 30 years.
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