Table 5

Results of the mixed-effects multiple meta-regression to examine the differential effectiveness of the treatments (k= 16)
Predictor bj SE Z p
Exercise .283 .267 1.059 .289
Back education .031 .329 .093 .926
Therapeutic physical conditioning .536 .326 1.643 .100
Manual therapy .508 .286 1.777 .075
Full model: QR (4) = 12.842, p = .012; R2 = .573
      QE (11) = 27.578, p = .004
Predictive equation: d’ = 0.0107 + 0.283*Exercise + 0.031*Back education + 0.536* Therapeutic physical conditioning + 0.508*Manual therapy.

k: number of studies. bj: regression coefficient. SE: standard error of the regression coefficient. Z: Z test for examining the significance of each treatment. p: probability level associated to the corresponding statistical test. QR: statistic to examine the significance of the full model. QE: statistic to assess the misspecification of the full model. d: predicted effect size.

Calvo-Muñoz et al.

Calvo-Muñoz et al. BMC Musculoskeletal Disorders 2013 14:55   doi:10.1186/1471-2474-14-55

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