• J Manipulative Physiol Ther · Mar 2004

    A practice-based study of patients with acute and chronic low back pain attending primary care and chiropractic physicians: two-week to 48-month follow-up.

    • Mitchell Haas, Bruce Goldberg, Mikel Aickin, Bonnie Ganger, and Michael Attwood.
    • Center for Outcome Studies, Western States Chiropractic College, 2900 NE 132nd Avenue, Portland, OR 97230, USA. mhaas@wschiro.edu
    • J Manipulative Physiol Ther. 2004 Mar 1;27(3):160-9.

    ObjectiveThis study reports pain and disability outcomes up to 4 years for chiropractic and medical patients with low back pain (LBP) and assesses the influence of doctor type and pain duration on clinical outcomes.DesignProspective, longitudinal, nonrandomized, practice-based, observational study.SettingFifty-one chiropractic and 14 general practice community clinics.SubjectsA total of 2870 acute and chronic ambulatory patients with LBP of mechanical origin.MethodsSixty chiropractic (DC) and 111 general practice (MD) physicians participated. Primary outcomes were pain, using a 100-point visual analogue scale (VAS), and functional disability, using the Revised Oswestry Disability Questionnaire. These were measured at baseline and 8 time points. Regression analysis compared acute and chronic DC and MD patients after correcting for baseline differences in the 4 cohorts.ResultsMost improvement was seen by 3 months and sustained for 1 year; exacerbation was seen thereafter. Acute patients demonstrated greater relief at all time points. A clinically important advantage for chiropractic patients was seen in chronic patients in the short-term (>10 VAS points), and both acute and chronic chiropractic patients experienced somewhat greater relief up to 1 year (P<.000). The advantage for DC care was prominent for chronic patients with leg pain below the knee (P<.001). More than 50% of chronic patients had over 50 days of pain in the third year.ConclusionStudy findings were consistent with systematic reviews of the efficacy of spinal manipulation for pain and disability in acute and chronic LBP. Patient choice and interdisciplinary referral should be prime considerations by physicians, policymakers, and third-party payers in identifying health services for patients with LBP.

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