The Manga Report & Chiropractic Research

What Did the Manga Report Conclude?

What Did the Researchers Examine?

The Manga Report examined a broad range of evidence available at the time concerning the management of low back pain.

The authors compared chiropractic management with medical and other approaches and considered clinical effectiveness, safety, cost-effectiveness, disability, use of healthcare resources and patient satisfaction.

It is important to remember that this was a review and health-policy analysis rather than a new randomised clinical trial of chiropractic treatment.

What Did the Manga Report Find?

The authors reached strongly favourable conclusions about chiropractic management of low back pain.

Based on the evidence available to them at the time, they concluded that spinal manipulation delivered by chiropractors appeared effective for low back pain and argued that chiropractic management could be more cost-effective than conventional medical management for many patients.

They also identified evidence suggesting high levels of patient satisfaction and argued that greater use of chiropractic services could potentially reduce healthcare expenditure and disability associated with low back pain.

These were the conclusions of the report’s authors. They should be understood in the context of the evidence available in 1993 rather than interpreted as current clinical guidance.

What Did the Report Recommend?

The authors went beyond reviewing clinical evidence and made a series of healthcare policy recommendations.

These included greater integration of chiropractic services into the Canadian healthcare system, improved access to chiropractic care for people with low back pain and greater cooperation between chiropractors, doctors and physiotherapists.

The authors also called for further clinical and health-economic research into the management of low back pain.

Was the Manga Report a Government Endorsement of Chiropractic?

No. This is an important distinction.

The study was funded by the Ontario Ministry of Health, but the report specifically stated that the views and opinions expressed were those of the authors and should not be attributed to the Ministry of Health, the University of Ottawa’s MHA programme or the Ontario Chiropractic Association.

It is therefore accurate to describe the Manga Report as an Ontario Ministry of Health-funded study, but not as an endorsement of its conclusions by the Ontario government.

Why Was the Manga Report Important?

The report appeared at a time when healthcare systems were becoming increasingly interested in evidence-based treatment and the economic cost of low back pain.

It brought together clinical and economic research and raised questions about whether greater access to conservative musculoskeletal care could improve outcomes while reducing healthcare expenditure.

For the chiropractic profession, it became an influential document because it examined chiropractic not only in terms of clinical outcomes but also in relation to healthcare policy, cost-effectiveness and integration with other healthcare services.

Does the Manga Report Still Represent the Current Evidence?

No single report published in 1993 should be used to represent the evidence for chiropractic treatment today.

Research methods have developed substantially, and many additional randomised trials, systematic reviews, meta-analyses and clinical guidelines have been published since the Manga Report.

Modern evidence also tends to consider individual interventions and individual conditions rather than treating “chiropractic” as one single treatment. Spinal manipulation, mobilisation, exercise, rehabilitation, education and other components of care can therefore be evaluated separately.

This provides a much more detailed picture of where different treatments may be useful, where evidence remains uncertain and how treatment can be combined with exercise and self-management.

From the Manga Report to Modern Evidence-Based Care

The Manga Report remains interesting because it illustrates an important stage in the development of chiropractic research. Its historical significance, however, is different from using it as evidence for clinical decisions today.

At Isis Chiropractic Centres, our approach is based on current evidence together with clinical assessment and the individual patient’s circumstances and preferences.

Treatment may include joint mobilisation or manipulation, soft tissue techniques, advice, exercise and rehabilitation where appropriate. Equally importantly, there are circumstances in which further investigation, another form of treatment or referral to another healthcare professional may be more appropriate.

For a broader review of current UK and international evidence, including NICE guidance, World Health Organization recommendations and modern systematic reviews, read our Chiropractic Treatment and Research page.

References

1. Manga P, Angus DE, Papadopoulos C, Swan WR. The Effectiveness and Cost-Effectiveness of Chiropractic Management of Low-Back Pain. Ontario, Canada; 1993. Funded by the Ontario Ministry of Health.
2. Manga P, Angus DE, Swan WR. Effective management of low back pain: it’s time to accept the evidence. Journal of the Canadian Chiropractic Association. 1993;37(4):221–229.