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Table 3 Difference in mean scores between the control and intervention groups in the imputed dataset during the six-month follow-up

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

  UNIVARIATE ANALYSIS*    multivariate analysis  
  mean difference/rate ratio CI p-value mean difference/ rate ratio p-value
ENDPOINT      
Disability (RMD) (scale 0–24) ¶ −0.233 −1.258 to 0.791 0.655 −0.259 0.582
Secondary outcomes      
Pain (VAS) (scale 0–100 mm) ¶ −1.120 −6.133 to 3.893 0.662 −2.269 0.306
Adequate relief (yes/no) † 1.118 0.510–1.567 0.696 1.119 0.730
Absenteeism (in days) ‡ 1.032 0.927–1.338 0.249 0.332 0.506
Healthcare consumption      
Telephone consultations (number per patient) § 1.0142 1.001–1.018 0.845 1.020 0.789
Practice consultations (number per patient) § 1.0143 0.880–1.169 0.845 1.067 0.245
  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. *Corrected for clustering effect. ¶ Mean difference between control and intervention groups over 26 weeks. † Odds ratio without baseline correction. ‡ Rate ratio in the multilevel model corrected for dichotomous baseline value. § Rate ratio without baseline correction