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
| 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] | ||