Prognostic indicators of low back pain in primary care: five-year prospective study.

J Pain · 2013 · PMC3739005 · PMID 23791041

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Final Multivariable Model In the final multivariable model ( Table 2 ), which combined significant factors remaining from each domain, baseline pain intensity significantly predicted 6-month outcome (RR = 1.12, 95% CI = 1.03–1.20) and showed a trend for 5-year outcome (RR = 1.09, 95% CI = .99–1.20), with a 12% and 9% increase in risk, respectively, per unit change on the pain intensity score.

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