Table 1 Socio-demographic and health characteristics for all patients at baseline
|  | Full sample n = 118 | Incomplete accelerometer data at 6-month follow-up (n = 25) | Incomplete accelerometer data at 12-month follow-up (n = 30) |
|---|---|---|---|
Age, mean (SD) | 45.7 (8.3) | 44.8 (7.6) | 45.1 (8.5) |
Sex, frequency (%) | Â | Â | Â |
Women | 63 (53.4%) | 12 (48.0%) | 14 (46.7%) |
Men | 55 (46.6%) | 13 (52.0%) | 16 (53.3%) |
Body mass index, mean (SD) | 26.3 (3.7) | 27.5 (3.5) | 27.0 (3.7) |
Smoking,* frequency (%) | 8 (6.8%) | 2 (8.0%) | 1 (3.3%) |
Education,* frequency (%) | Â | Â | Â |
Elementary school | 7 (6.0%) | 2 (8.0%) | 2 (6.7%) |
High school | 51 (43.6%) | 14 (56%) | 14 (46.7%) |
University or college | 42 (35.9%) | 5 (20%) | 10 (33.3%) |
Vocational education | 17 (14.5%) | 4 (16%) | 4 (13.3%) |
Sick leave,†frequency (%) | 41 (35.3%) | 4 (16.0%) | 7 (23.3%) |
Previous back surgery, frequency (%) | 11 (9.3%) | 1 (4.0%) | 1 (4.0%) |
Back pain duration,* n (%) | Â | Â | Â |
≤ 2 years | 29 (24.8%) | 4 (16.0%) | 7 (23.3%) |
> 2 years | 88 (75.2%) | 21 (84.0%) | 23 (76.7) |
Allocated to prehabilitation | 59 (50.0%) | 13 (52.0%) | 16 (53.3%) |
Back pain intensity (VAS), mean (SD) | 58.1 (19.1) | 66.6 (17.0) | 64.0 (17.7) |
Oswestry Disability Index, mean (SD) | 36.8 (12.4) | 37.0 (11.8) | 36.2 (13.1) |
Depressive symptoms (HADS) mean (SD) | 5.4 (3.6) | 6.0 (3.3) | 5.4 (3.5) |
Fear of movement (TSK) mean (SD) | 38.2 (8.5) | 40.7 (8.1) | 39.9 (8.4) |
Pain Catastrophizing Scale, mean (SD) | 22.8 (8.1) | 24.9 (8.8) | 24.9 (7.5) |
Self-efficacy for Exercise Scale, mean (SD) | 61.2 (20.5) | 55.2 (24.9) | 55 (21.1) |