Table 1 A comparison between those patients allocated to study subgroups and patients who could not be allocated to subgroups because of ambiguous data
Allocated to subgroups n = 2,673 | Registered patients not allocated to subgroups n=926 | |
|---|---|---|
Females, % (95% CI) | 56 (54-58) | 54 (51-57) |
Age in years, mean (SD) | 48 (15) | 48 (15) |
Duration > 12 months, % (95%CI)* | 47 (45-49) | 52 (49-55) |
LBP intensity (0-10), median (IQR) | 6 (4-8) | 6 (5-7) |
Leg pain intensity (0-10), median (IQR)* | 5 (3-7) | 3 (1-6) |
Leg pain > 0 (0-10), % (95% CI)* | 84 (83-86) | 88 (86-90) |
Signs of nerve root involvement, % (95%CI)* | 40 (38-42) | 30 (27-33) |
Activity limitation (0-100), median (IQR)* | 65 (43-82) | 61 (39-78) |