Comparative Effectiveness Research and the Chiropractic Profession

Prevalence of Chiropractic-Specific Terminology on Chiropractors' Websites in the United Kingdom With Comparison to Australia: An Analysis of Samples

OBJECTIVE

The purpose of this study was to compare the prevalence of 5 chiropractic-specific terms on UK chiropractic websites to findings in a previous study in Australia and to provide an argument against the use of these terms.

METHODS

We searched websites belonging to chiropractors registered with the General Chiropractic Council for 5 terms: subluxation, vital(-ism/-istic), wellness, adjust(-ing/-ment), and Innate (Intelligence). Of 3239 websites, 326 were sampled. Each page was searched, and terms were counted only if used in a chiropractic-specific context. Term occurrence and frequency were recorded. The data were analyzed using a single-sample χ² goodness-of-fit test for unequal proportions. The results were compared to those of our prior Australian study, using the χ² test of homogeneity to determine the differences between samples.

RESULTS

At least 1 of the 5 chiropractic-specific terms was found on 245 (75%) of UK websites. Adjust(-ing/-ment) was found on 222 (68%) of UK websites compared to 283 (77%) in Australia; wellness on 67 (5%) of UK sites compared to 199 (33%) in Australia; vital(-ism/-istic) on 30 (9%) of UK sites compared to 71 (19%) in Australia; subluxation on 17 (5%) of UK sites compared to 104 (28%) in Australia; and Innate on 10 (3%) of UK sites compared to 39 (11%) in Australia. A χ² test found that the terms were not equally distributed in the two samples, χ 4 2  = 404.080, P < .001. In the discussion, we explain why we feel that chiropractic-specific terms should be abandoned and standard biomedical terms used.

CONCLUSION

In the sample of websites we evaluated in this study, the majority in the United Kingdom used the 5 chiropractic-specific terms that we searched for. The terms were used less frequently than on websites in Australia but were in a similar order of prevalence.

Words matter: the prevalence of chiropractic-specific terminology on Australian chiropractors' websites

BACKGROUND

Chiropractors use words and phrases in unique ways to express traditional, chiropractic-specific theories. This lexicon represents concepts that reinforce the separation of chiropractic from other health care professions. It may impact referrals both to and from chiropractors, lead to public confusion about health care issues, and reduce cross-disciplinary research. Therefore, it is important to understand how prevalent chiropractic-specific terms are in publicly available media.

METHODS

Five chiropractic terms were selected: subluxation, adjustment, vital (-ism/-istic), wellness, and Innate (Intelligence). States and territories in Australia were proportionately sampled according to population of chiropractors using a Google search for chiropractors' private practice websites. The top results were recorded. Websites were word-searched on every publicly available page for the five terms. Context was checked to count only terms that were used to support a chiropractic-specific concepts. The number of occurrences of each term was recorded, tallied nationally and by state/territory. Descriptive statistics were applied to determine prevalence.

RESULTS

Three hundred sixty-nine websites were sampled, based on an estimate of 5500 chiropractors practising in Australia. Nationally, 85% of chiropractors used one or more terms. The term adjust (-ing/-ment) occurred most frequently, being found on 283 websites (77%) with a total of 2249 occurrences. Wellness was found on 199 websites (54%) with 872 occurrences; subluxation was found on 104 websites (28%), 489 occurrences; vital (-ism/-istic) on 71 websites (19%) with 158 occurrences; and Innate was least used, being found on 39 websites (11%) with 137 occurrences.

CONCLUSION

A majority of the Australian chiropractors sampled used one or more chiropractic-specific terms on their websites. Future research should explore the effects of chiropractic language on the public, policy-makers, and other health care professionals.

EFFECTIVENESS OF CHIROPRACTIC ADJUSTMENT IN LUMBAR PAIN IN CROSSFIT PRACTITIONERS

ABSTRACT Objective: To evaluate the efficacy of acute chiropractic adjustment in individuals who practice CrossFit with regard to complaints of low back pain and the joint range of motion in this region. Methods: A randomized clinical trial comprised of CrossFit practitioners from a box in Novo Hamburgo-RS, of both sexes and aged 18 to 40 years who had low back pain at the time of the study. The following tools were used: Semi-structured Anamnesis Questionnaire, Visual Analog Scale, McGill Pain Questionnaire, and SF-36 Quality of Life Questionnaire. Individuals in the control group answered the questionnaires before and after CrossFit training. The chiropractic group performed the same procedure, plus pre-training chiropractic adjustment and joint range of motion (ROM) before and after lumbar adjustment. Results: There was a significant increase in pain in the control group, and a significant decrease in pain in the chiropractic group, including one day after the chiropractic adjustment. In the chiropractic group, the joint ranges of motion had a significant increase in flexion and extension of the lumbar spine after chiropractic adjustment. Conclusion: The chiropractic group achieved a significant improvement in pain level and joint range of motion, suggesting that acute chiropractic adjustment was effective in reducing low back pain.

The comparative effect of episodes of chiropractic and medical treatment on the health of older adults

OBJECTIVES

The comparative effect of chiropractic vs medical care on health, as used in everyday practice settings by older adults, is not well understood. The purpose of this study is to examine how chiropractic compares to medical treatment in episodes of care for uncomplicated back conditions. Episodes of care patterns between treatment groups are described, and effects on health outcomes among an older group of Medicare beneficiaries over a 2-year period are estimated.

METHODS

Survey data from the nationally representative Survey on Assets and Health Dynamics among the Oldest Old were linked to participants' Medicare Part B claims under a restricted Data Use Agreement with the Centers for Medicare and Medicaid Services. Logistic regression was used to model the effect of chiropractic use in an episode of care relative to medical treatment on declines in function and well-being among a clinically homogenous older adult population. Two analytic approaches were used, the first assumed no selection bias and the second using propensity score analyses to adjust for selection effects in the outcome models.

RESULTS

Episodes of care between treatment groups varied in duration and provider visit pattern. Among the unadjusted models, there was no significant difference between chiropractic and medical episodes of care. The propensity score results indicate a significant protective effect of chiropractic against declines in activities of daily living (ADLs), instrumental ADLs, and self-rated health (adjusted odds ratio [AOR], 0.49; AOR, 0.62; and AOR, 0.59, respectively). There was no difference between treatment types on declines in lower body function or depressive symptoms.

CONCLUSION

The findings from this study suggest that chiropractic use in episodes of care for uncomplicated back conditions has protective effects against declines in ADLs, instrumental ADLs, and self-rated health for older Medicare beneficiaries over a 2-year period.