A Comparison of Active and Simulated Chiropractic Manipulation as Adjunctive Treatment for Childhood Asthma
Jeffrey Balon, M.D., Peter D. Aker, D.C., Edward R. Crowther, D.C., Clark Danielson, M.P.A., P. Gerard Cox, M.B., Denise O'Shaughnessy, Corinne Walker, Charles H. Goldsmith, Ph.D., Eric Duku, M.Sc., and Malcolm R. Sears, M.B.
Background Chiropractic spinal manipulation has been reportedto be of benefit in nonmusculoskeletal conditions, includingasthma.
Methods We conducted a randomized, controlled trial of chiropracticspinal manipulation for children with mild or moderate asthma.After a three-week base-line evaluation period, 91 childrenwho had continuing symptoms of asthma despite usual medicaltherapy were randomly assigned to receive either active or simulatedchiropractic manipulation for four months. None had previouslyreceived chiropractic care. Each subject was treated by 1 of11 participating chiropractors, selected by the family accordingto location. The primary outcome measure was the change frombase line in the peak expiratory flow, measured in the morning,before the use of a bronchodilator, at two and four months.Except for the treating chiropractor and one investigator (whowas not involved in assessing outcomes), all participants remainedfully blinded to treatment assignment throughout the study.
Results Eighty children (38 in the active-treatment group and42 in the simulated-treatment group) had outcome data that couldbe evaluated. There were small increases (7 to 12 liters perminute) in peak expiratory flow in the morning and the eveningin both treatment groups, with no significant differences betweenthe groups in the degree of change from base line (morning peakexpiratory flow, P=0.49 at two months and P=0.82 at four months).Symptoms of asthma and use of -agonists decreased and the qualityof life increased in both groups, with no significant differencesbetween the groups. There were no significant changes in spirometricmeasurements or airway responsiveness.
Conclusions In children with mild or moderate asthma, the additionof chiropractic spinal manipulation to usual medical care providedno benefit.
Source Information
From the Division of Graduate Studies and Research, Canadian Memorial Chiropractic College, Toronto (J.B., P.D.A., E.R.C.); the Department of Research, Los Angeles College of Chiropractic, Los Angeles (C.D.); the Firestone Regional Chest and Allergy Unit, St. Joseph's Hospital, and the Department of Medicine, McMaster University, Hamilton, Ont., Canada (P.G.C., D.O., C.W., M.R.S.); and the Department of Clinical Epidemiology and Biostatistics and the Centre for Evaluation of Medicines, Father Sean O'Sullivan Research Centre, St. Joseph's Hospital and McMaster University, Hamilton, Ont., Canada (C.H.G., E.D.).
Address reprint requests to Dr. Sears at the Firestone Regional Chest and Allergy Unit, St. Joseph's Hospital, 50 Charlton Ave. East, Hamilton, ON L8N 4A6, Canada.
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