Skip to main content

Advertisement

Table 2 Univariate mean score per group in primary and secondary outcomes in the imputed dataset without correction for clustering

From: The effectiveness of shared decision-making followed by positive reinforcement on physical disability in the long-term follow-up of patients with nonspecific low back pain in primary care: a clustered randomised controlled trial

  MEAN SCORE AT 2 WEEKS Mean score at 12 weeks mean score at 26 weeks
  IV CO p-value IV CO p-value IV CO p-value
Clinical parameters  
Disability (RMD) (0–24) 4.1 (5.3) 4.3 (4.8) 0.789 2.1 (4.0) 2.3 (3.7) 0.720 2.0 (3.7) 2.0 (3.6) 0.949
Pain (VAS) (0–100 mm) 18.9 (21.7) 20.3 (20.9) 0.675 14.2 (22.6) 12.4 (17.5) 0.577 13.6 (17.3) 16.3 (21.2) 0.385
Adequate relief (yes/no)† 70 (81%) 62 (81%) 0.888 45 (69%) 38 (62%) 0.416 35 (66%) 32 (64%) 0.830
Societal impact     
Absenteeism (days) 1.47 (3.35) 2.05 (4.03) 0.359 0.93 (5.65) 0.800 (3.63) 0.888    *
Absenteeism (yes/no)‡ 18 (28%) 20 (27%) 0.924 3 (5%) 4 (8%) 0.552 7 (11%) 6 (14%) 0.650
healthcare consumption     
Telephone consultations (per patient) 0.35 (0.71) 0.29 (0.60) 0.556 1.18 (0.50) 1.18 (0.51) 0.672    *
Practice consultations (per patient) 0.21 (0.51) 0.11 (0.39) 0.134 1.12 (0.43) 1.15 (0.52) 0.965 1.11 (0.45) 1.10 (0.38) 0.914
  1. RMD = Roland-Morris disability questionnaire (a higher score indicates a more favourable outcome). VAS = visual analogue scale (a lower score indicates a more favourable outcome). Mean score of low back pain, leg pain and both. IPQ = illness perception questionnaire. CO = control group. IV = intervention group. *Cannot be computed because the group is zero