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Table 3 Observed outcomes in the control group, the total SMS group, and the participants in the SMS group responding in more than 26 out of the 52 weeks

From: Effects of weekly pain monitoring on back pain outcomes: a non-randomised controlled study

Continuous outcomes Control group (N = 1,225) SMS group (N = 1,623) SMS group responding in > 26 weeks (N = 995)
LBP at 12 months follow-up, NRS (0–10); mean (SD) 2.6 (2.4) (n = 799) 2.1 (2.4) (n = 1,012) 2.0 (2.4) (n = 826)
Activity limitation, RMDQ (0–100); mean (SD) 19.5 (22.8) (n = 610) 20.1 (22.9) (n = 847) 19.9 (22.6) (n = 720)
Ability to control pain, NRS (0–10); mean (SD) 7.9 (2.4) (n = 790) 7.9 (2.6) (n = 999) 7.9 (2.6) (n = 813)
Binary outcomes Control group (N = 1,225) SMS group (N = 1,623) SMS group responding in > 26 weeks (N = 995)
Pain > 3, yes; n (%) 239 (29.9%) (n = 799) 236 (23.3%) (n = 1,012) 182 (22.0%) (n = 826)
Non-improvement of activity limitation; n (%) 137 (22.8%) (n = 601) 184 (22.0%) (n = 835) 152 (21.3%) (n = 714)
Lack of pain control, yes; n (%) 85 (10.8%) (n = 790) 105 (10.5%) (n = 999) 90 (11.1%) (n = 81)
  1. LBP = low back pain; NRS = Numeric Rating Scale; RMDQ = Roland Morris Disability Questionnaire; SD = standard deviation