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Table 3 Results of linear regression models for change score in pain at 14-month follow-up

From: Do MRI findings identify patients with chronic low back pain and Modic changes who respond best to rest or exercise: a subgroup analysis of a randomised controlled trial

  Beta coefficient p-value 95 % confidence interval
Modic changes Type 1
 Treatmenta 0.82 0.42 −1.19;2.82
 Modic changes Type 1 −1.79 0.03 −3.41; −0.17
Interaction: Modic Type 1 & treatment −0.99 0.39 −3.28;1.29
 Constant 2.09 0.004 0.67;3.51
Large Modic changes (any type)
 Large Modic changes 1.23 0.13 −0.37;2.84
 Treatment 1.08 0.26 −0.80;2.95
 Interaction: large Modic changes & treatment −1.49 0.19 −3.73;0.75
 Constant −0.14 0.83 −1.49;1.20
Large Modic changes Type 1
 Large Modic changes Type 1 0.07 0.93 −1.42;1.55
 Treatment 0.89 0.27 −0.70;2.47
Interaction: large Modic changes Type 1 & treatment −1.49 0.16 −3.57;0.58
 Constant 0.68 0.24 −0.46;1.83
Severe disc degeneration
 Severe disc degeneration −0.002 0.998 −1.53;1.52
 Treatment −0.24 0.78 −1.55;1.07
Interaction: severe disc degeneration & treatment 0.74 0.50 −1.40;2.88
 Constant 0.72 0.13 −0.22;1.67
Large disc herniation
 Large disc herniation 0.73 0.34 −0.78;2.24
 Treatment 0.38 0.56 −0.90;1.66
Interaction: large disc herniation & treatment −0.92 0.42 −3.15;1.31
 Constant 0.43 0.38 −0.53;1.39
  1. aRest compared with exercise