Table 2 Low back symptoms and disability scores at baseline, 3 months, 6 months and 12 months according to treatment group, within group differences and between group comparisons of difference from baseline to 12 months
Outcome measure | Mean (SD) crude scores | Difference between baseline and 12 months (95% CI) repeated measures regression1 | Treatment difference (95% CI) repeated measures regression1 | ||
|---|---|---|---|---|---|
Intervention | Control | Intervention | Control | ||
Intensity of LBP during last week | |||||
Baseline | 4.9 (1.5) | 4.0 (1.5) | |||
3 months | 3.8 (1.9) | 3.4 (1.7) | |||
6 months | 2.0 (1.1) | 3.0 (1.9) | |||
12 months | 1.6 (0.9) | 3.1 (2.1) | − 3.3 (− 4.3 to − 2.3) | −0.8 (− 1.9 to 0.4) | −2.6 (− 3.7 to − 1.4) |
Intensity of sciatica during last week | |||||
Baseline | 3.2 (1.9) | 2.0 (2.0) | |||
3 months | 2.6 (2.1) | 1.7 (2.0) | |||
6 months | 1.3 (1.0) | 1.7 (1.8) | |||
12 months | 0.8 (1.0) | 1.9 (2.0) | −2.3 (− 4.4 to − 1.3) | −0.1 (− 1.4 to 1.2) | − 2.3 (− 3.4 to − 1.1) |
Disability (Roland-Morris Disability Questionnaire) | |||||
Baseline | 5.8 (3.2) | 5.0 (4.0) | |||
3 months | 4.0 (3.6) | 3.3 (1.9) | |||
6 months | 3.6 (3.6) | 3.7 (2.8) | |||
12 months | 3.4 (3.3) | 3.2 (2.3) | −1.9 (−3.1 to − 0.7) | − 1.4 (−2.5. to − 0.3) | −0.5 (− 1.3 to 0.3) |
Oswestry Disability Index (NB) | |||||
Baseline | 18.2 (9.0) | 12.2 (11.4) | |||
3 months | 14.5 (7.3) | 13.3 (9.1) | |||
6 months | 13.2 (7.7) | 11.8 (8.8) | |||
12 months | 13.3 (9.3) | 11.0 (9.8) | −4.8 (−8.1 to − 1.5) | −1.2 (−3.6 to 1.2) | −3.5 (−7.6 to 0.5) |
Days on sick leave due to LBP during the past year | |||||
Baseline | 10.1 (10.2) | 7.0 (15.7) | −7.0 (−11.3 to − 2.6) 2 | − 5.0 (− 11.5 to 1.5)2 | 1.9 (− 5.5 to 9.3)2 |
12 months | 2.4 (4.1) | 6.2 (10.3) | |||
−52.9 (− 8.6 to − 97.2) 3 | 27.4 (− 15.7 to 70.4)3 | − 80.3 (− 146.1 to − 14.5) 3 | |||