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Table 5 Differences in change in pain and disability between the groups. Neck and back pain separately

From: The long-term effects of naprapathic manual therapy on back and neck pain - Results from a pragmatic randomized controlled trial

Baseline 26 weeks   52 weeks  
Baseline value Change* Diff. in change† Change* Diff. in change†
(95% CI) (95% CI) (95% CI) (95% CI) (95% CI)
   p-value   p-value
Neck pain (CPQ)     
Index group     
5.6 2.5   2.5  
(5.4-5.9) (2.1-2.9)   (2.0-3.0)  
n = 129 n = 117 0.9 n = 112 0.8
   (0.3-1.6)   (0.2-1.4)
   0.004   0.012
Control group     
5.5 1.6   1.7  
(5.2-5.8) (1.1-2.0)   (1.3-2.1)  
n = 134 n = 115   n = 101  
Back pain (CPQ)     
Index group     
5.5 2.7   2.4  
(5.2-5.8) (2.3-3.1)   (2.0-3.0)  
n = 92 n = 86 1.1 n = 83 0.1
   (0.4-1.7)   ((-0.6)-0.8)
   0.003   0.712
Control group     
5.4 1.6   2.3  
(5.5-5.7) (1.1-2.2)   (1.8-2.9)  
n = 80 n = 70   n = 65  
Neck disability (CPQ)     
Index group     
2.8 1.3   1.4  
(2.4-3.1) (1.0-1.8)   (1.1-1.8)  
n = 131 n = 115 0.6 n = 116 0.7
   (0.0-1.3)   (0.1-1.4)
   0.044   0.023
Control group     
2.7 0.7   0.7  
(2.3-3.1) (0.2-1.2)   (0.2-1.2)  
n = 133 n = 114   n = 100  
Back disability (CPQ)     
Index group     
2.8 1.2   1.5  
(2.4-3.3) (0.7-1.8)   (0.9-2.0)  
n = 92 n = 86 0.5 n = 82 0.5
   ((-0.3)-1.4)   ((-0.4)-1.4)
   0.198   0.282
Control group     
3.0 0.7   1.0  
(2.4-3.5) (0.1-1.3)   (0.3-1.6)  
n = 80 n = 71   n = 65  
Neck disability (WDQ)     
Index group     
3.0 1.2   1.3  
(2.7-3.3) (0.9-1.5)   (1.0-1.6)  
n = 131 n = 118 0.4 n = 115 0.5
   ((-0.1)-0.8)   (0.1-1.0)
   0.087   0.016
Control group     
3.0 0.8   0.8  
(2.7-3.3) (0.5-1.2)   (0.4-1.1)  
n = 134 n = 116   n = 104  
Back disability (WDQ)     
Index group     
3.2 1.4   1.5  
(2.8-3.5) (1.1-1.9)   (1.1-1.9)  
n = 92 n = 86 0.7 n = 84 0.6
   (0.2-1.3)   (0.1-1.2)
   0.006   0.032
Control group     
3.0 0.7   0.9  
(2.6-3.4) (0.4-1.1)   (0.5-1.3)  
n = 80 n = 71   n = 66  
  1. Baseline values of pain and disability for the neck and back pain patients respectively in index and control groups, changes in the mean of the outcomes for patients taking part in the follow-up at 26 and 52 weeks, compared to baseline and differences in mean change between groups.
  2. * The difference in the group mean of the outcomes at follow-up compared to baseline.
  3. † The difference between the Index Group and Control Group with regard to change of group mean at follow-up.