Cost effectiveness analysis of a randomised trial of acupuncture for chronic headache in primary care
Wonderling et al. · BMJ · 2004
Evidence Level
STRONGOBJECTIVE
Assess the cost-effectiveness of acupuncture in the treatment of chronic headache in primary care
WHO
401 patients with chronic headache (predominantly migraine)
DURATION
12 acupuncture sessions over 3 months, 1-year follow-up
🔬 Study Design
Acupuncture
n=205
Up to 12 acupuncture sessions by trained physical therapists
Control
n=196
Usual care only
📊 Results in numbers
Incremental cost per QALY gained
Mean gain in QALYs
Cost-effective probability (£30,000/QALY)
Reduction in general practitioner visits
Percentage highlights
📊 Outcome Comparison
Quality of life (SF-6D)
This study demonstrated that acupuncture for chronic headaches improves quality of life at a relatively low additional cost. The treatment was considered to provide good value for money compared with other interventions offered by the public health system.
Article summary
Plain-language narrative summary
This important economic study published in the BMJ rigorously evaluated, for the first time, the cost-effectiveness of acupuncture for chronic headache in primary care. The research was conducted at general medical clinics in England and Wales, involving 401 patients with chronic headache, predominantly migraine, who reported at least two headaches per month. The study used a robust methodological approach, measuring both direct costs to the health system and costs to patients, as well as assessing effectiveness through quality-adjusted life-years (QALYs). Health-related quality of life was measured using the SF-6D, derived from the SF-36 questionnaire, at three time points: baseline, three months, and 12 months.
The results demonstrated that patients in the acupuncture group had an average of 4.2 hours of contact with acupuncturists, with a mean of 7.9 sessions. The total cost over the one-year period was higher for the acupuncture group (£403 versus £217 for controls), mainly due to the costs of acupuncture treatments. However, small but statistically significant reductions were observed in spending on general practitioner visits and complementary medications in the acupuncture group. The mean health gain was 0.021 QALYs (equivalent to eight quality-adjusted days), resulting in an incremental cost of £9,180 per QALY gained.
This result proved robust in sensitivity analyses. Using a threshold of £30,000 per QALY (consistent with NICE decisions), the probability that acupuncture was cost-effective was 92%. The sensitivity analyses explored different scenarios, including variations in the type of practitioner (physical therapist versus physician), productivity costs, and projections of effects beyond 12 months. When productivity costs were included and persistence of effects beyond the study period was considered, acupuncture presented an even more favorable cost-effectiveness ratio.
The research concluded that acupuncture for chronic headache represents a relatively cost-effective intervention compared with others offered by the public health system, improving quality of life at a modest additional cost.
Strengths
- 1First rigorous cost-effectiveness study of acupuncture
- 2Large randomized sample with 12-month follow-up
- 3Comprehensive sensitivity analyses testing different scenarios
- 4Robust economic methodology with validated quality of life measures
- 5Both health system and societal perspectives
Limitations
- 1Time horizon of only 12 months may underestimate benefits
- 2Costs of prescription medications excluded from the main analysis
- 3Incomplete quality of life data for some participants
- 4Regression models for medication costs with inadequate properties
- 5Did not include productivity costs in the base-case analysis
Expert Commentary
Dr. Marcus Yu Bin Pai
MD, PhD · Pain Medicine · Physical Medicine and Rehabilitation · Medical Acupuncture
▸ Clinical Relevance
The question any service chief or health system manager poses when faced with a nonpharmacological therapy is straightforward: is it worth the cost to the system? This work by Wonderling et al. answers with solid economic methodology, and the answer is affirmative. With an incremental cost of £9,180 per QALY gained and a 92% probability of cost-effectiveness at the £30,000 threshold adopted by NICE, acupuncture for chronic headache sits comfortably within what public systems consider reasonable. For the clinician treating patients with refractory migraine or chronic tension-type headache — populations with heavy service utilization, polypharmacy, and recurrent absenteeism — these numbers translate into a concrete argument for including needling in the integrated therapeutic plan. The observed reduction in general practitioner visits reinforces that the benefit extends beyond the individual patient, easing demand on primary care, which in the context of the Brazilian Unified Health System (SUS) and private payers is operationally relevant.
▸ Notable Findings
The gain of 0.021 QALYs appears modest in absolute value but is equivalent to approximately eight days of full health over a year — clinically perceptible for someone living with two or more headache episodes per month. What is striking is the robustness of this result in sensitivity analyses: the cost per QALY remained favorable even when varying the type of practitioner and the time horizon. Another point worth noting is the £21.38 reduction in general practitioner visits in the acupuncture group, suggesting that part of the treatment cost is offset by lower service demand. Furthermore, when the authors incorporated productivity costs and projected effect persistence beyond 12 months, the economic profile became even more favorable — indicating that the study, within its conservative horizon, likely underestimates the real benefit.
▸ From My Experience
In my practice at the musculoskeletal pain clinic at USP, chronic headache is one of the indications in which I have seen the most consistent response to needling, typically perceptible between the third and fifth session — reduction in frequency and intensity of episodes, which the patient is able to quantify in the headache diary we ask them to bring. The usual protocol I use involves eight to ten sessions in the acute phase, with progressive spacing toward quarterly maintenance in cases of high functional impact. I systematically combine cervical physical therapy and counseling on sleep hygiene and postural triggers, because the patient with chronic headache rarely has a single driver. The profile that responds best, in my observation over the years, is the one with associated cervicogenic tension component, without analgesic overuse — the overuser needs detoxification first before any productive needling. This work economically validates what we have been seeing clinically.
Full original article
Read the full scientific study
BMJ · 2004
DOI: 10.1136/bmj.38033.896505.EB
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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