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Table 2 Differences in change in pain and disability between the groups

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)
p-value 		(95% CI) (95% CI)
p-value
Pain (CPQ)     
Index group     
5.5 2.6   2.5  
(5.3-5.8) (2.3-2.9)   (2.2-2.9)  
n = 204 n = 188 1.0 n = 182 0.5
   (0.5-1.5)   (0.1-1.1)
   <0.001   0.021
Control Group     
5.4 1.6   2.0  
(5.2-5.7) (1.3-2.0)   (1.6-2.3)  
n = 203 n = 176   n = 158  
Disability (CPQ)     
Index group     
2.7 1.4   1.5  
(2.5-3.0) (1.0-1.7)   (1.2-1.8)  
n = 206 n = 186 0.6 n = 184 0.7
   (0.1-1.1)   (0.2-1.2)
   0.020   0.012
Control group     
2.8 0.8   0.8  
(2.3-3.1) (0.4-1.2)   (0.4-1.2)  
n = 202 n = 176   n = 157  
Disability (WDQ)     
Index group     
3.0 1.3   1.4  
(2.8-3.2) (1.1-1.6)   (1.2-1.7)  
n = 206 n = 189 0.5 n = 186 0.6
   (0.2-0.9)   (0.2-1.0)
   0.002   0.001
Control group     
3.0 0.8   0.8  
(2.8-3.3) (0.6-1.1)   (0.5-1.1)  
n = 203 n = 178   n = 160  
  1. Baseline values of pain and disability for the 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 with 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.
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