Skip to main content

Table 3 Association between waiting time and the change in pain intensity from baseline to the 6-month follow-up, for the overall sample and by main rheumatic condition

From: The association between waiting time and multidisciplinary pain treatment outcomes in patients with rheumatic conditions

  Pain intensity at baseline, Mean (SD) Pain intensity at 6 months, Mean (SD) GEE models
Unadj.
p value a
Unadj. change from baseline to 6 months, EMM (95% CI) Adj. p value a,b Adj. change from baseline to 6 months, EMM b (95% CI)
Overall sample (n) 3227 1948 < 0.001   < 0.001  
 Total 7.0 (1.9) 6.2 (2.3)     
  < 2 months 6.9 (2.0) 5.6 (2.5)   −1.3 [− 1.6, − 1.0]   −1.3 [− 1.6, − 0.9]
 2–6 months 7.0 (1.8) 6.4 (2.2)   −0.6 [− 0.9, − 0.4]   −0.6 [− 0.9, − 0.4]
  > 6 months 6.9 (1.9) 6.5 (2.1)   − 0.4 [− 0.6, − 0.3]   − 0.4 [− 0.6, − 0.2]
Osteoarthritis (n) 668 396 0.058   0.114  
 Total 6.7 (1.9) 6.1 (2.4)     
  < 2 months 6.6 (2.0) 5.6 (2.6)   −1.1 [− 1.8, − 0.4]   −1.1 [− 1.8, − 0.3]
 2–6 months 6.9 (1.8) 6.3 (2.3)   −0.6 [− 1.1, 0.03]   −0.5 [− 1.1, 0.01]
  > 6 months 6.6 (1.9) 6.2 (2.2)   − 0.4 [− 0.8, 0.05]   − 0.4 [− 0.9, 0.02]
Fibromyalgia (n) 676 359 0.087   0.022  
 Total 6.9 (1.8) 6.5 (2.1)     
  < 2 months 7.1 (1.6) 6.2 (2.3)   −0.9 [− 1.6, − 0.3]   − 1.0 [− 1.6, − 0.3]
 2–6 months 6.9 (1.7) 6.4 (2.1)   − 0.5 [− 1.0, 0.02]   −0.5 [− 1.1, 0.01]
  > 6 months 6.9 (1.9) 6.7 (2.0)   − 0.3 [− 0.7, 0.03]   −0.2 [− 0.6, 0.1]
  1. SD standard deviation, GEE generalized estimating equations, EMM estimated marginal means, 95% CI 95% confidence interval
  2. a Time X group effect p value
  3. b Adjusted for age, sex, pain duration, number of comorbidities and income