Table 2: Comparison of the reductions in Oswestry scores from baseline to two weeks post treatment. The results are expressed as mean reductions with the 95 % confidence intervals.
Treatment groups Within groups Between groups
Number of treatments 2 Treatments
4 Treatments		 4.9
- 8.2 to 17.9
12.3
- 9.5 to 34.2		 7.5
- 14.6 to 29.6
Duration between treatments (days) 7 days 13.9
-6.9 to 34.6
3.3
- 10.2 to 16.8		 10.5
- 11.0 to 32.0
Total 8.6
-2.1 to 19.3