From: Effects of weekly pain monitoring on back pain outcomes: a non-randomised controlled study
Patient characteristics at baseline | SMS group (N = 1,623) | Control group (N = 1,225) |
---|---|---|
Age; mean (SD, range) | 44.5 (13.6; 18–80) | 44.7 (13.8; 18–87) |
Sex, female; n (%) | 655 (40.4%) | 512 (41.8%) |
BMI; mean (SD) | 26.7 (4.9) | 27.0 (5.1) |
Employment, yes; n (%) | 1302 (82.4%) | 985 (81.8%) |
Longest education | ||
Higher or further education; n (%) | 615 (53.5%) | 425 (48.8%) |
Vocational education; n (%) | 318 (27.7%) | 276 (31.7%) |
No qualifying education; n (%) | 174 (15.1%) | 139 (16.0%) |
Other education; n (%) | 43 (3.7%) | 31 (3.6%) |
Workload | ||
Very strenuous; n (%) | 19 (2.1%) | 18 (2.6%) |
Strenuous; n (%) | 108 (11.9%) | 84 (12.1%) |
Somewhat strenuous; n (%) | 216 (23.8%) | 186 (26.9%) |
Light; n (%) | 281 (30.9%) | 225 (32.5%) |
Very light; n (%) | 285 (31.4%) | 179 (25.9%) |
Previous episodes with low back pain, yes; n (%) | 934 (82.4%) | 718 (84.4%) |
Previous treatment for low back pain, yes; n (%) | 763 (65.7%) | 594 (67.4%) |
Back pain intensity, NRS (0–10); mean (SD) | 6.7 (2.1) | 6.7 (2.1) |
Episode duration | ||
1–7 days; n (%) | 793 (49.4%) | 535 (43.8%) |
1–4 weeks; n (%) | 359 (22.3%) | 315 (25.8%) |
1–3 months; n (%) | 169 (10.5%) | 163 (13.4%) |
> 3 months; n (%) | 286 (17.8%) | 208 (17.0%) |
Prognostic index, STarTa | ||
Low; n (%) | 657 (42.3%) | 513 (43.4%) |
Medium; n (%) | 558 (35.9%) | 409 (34.6%) |
High; n (%) | 340 (21.9%) | 260 (22.0%) |
Activity limitation, RMDQ (0–100); mean (SD)b | 55.6 (23.8) | 54.1 (24.0) |
Ability to control pain, NRS (0–10); mean (SD) | 5.5 (2.4) | 5.5 (2.3) |
Recovery expectations, NRS (0–10); mean (SD) | 7.4 (3.0) | 7.5 (2.9) |