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Predictors of outcome in neck pain patients undergoing chiropractic care: comparison of acute and chronic patients

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Author(s): Peterson Cynthia | Bolton Jennifer | Humphreys B Kim

Journal: Chiropractic and Manual Therapies
ISSN 2045-709X

Volume: 20;
Issue: 1;
Start page: 27;
Date: 2012;
Original page

Keywords: Neck pain | Chiropractic | Outcomes | Prognostic factors

ABSTRACT
Abstract Background Neck pain is a common complaint in patients presenting for chiropractic treatment. The few studies on predictors for improvement in patients while undergoing treatment identify duration of symptoms, neck stiffness and number of previous episodes as the strong predictor variables. The purpose of this study is to continue the research for predictors of a positive outcome in neck pain patients undergoing chiropractic treatment. Methods Acute (< 4 weeks) (n = 274) and chronic (> 3 months) (n = 255) neck pain patients with no chiropractic or manual therapy in the prior 3 months were included. Patients completed the numerical pain rating scale (NRS) and Bournemouth questionnaire (BQ) at baseline prior to treatment. At 1 week, 1 month and 3 months after start of treatment the NRS and BQ were completed along with the Patient Global Impression of Change (PGIC) scale. Demographic information was provided by the clinician. Improvement at each of the follow up points was categorized using the PGIC. Multivariate regression analyses were done to determine significant independent predictors of improvement. Results Baseline mean neck pain and total disability scores were significantly (p 
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