Outcome title (Long term follow‐up)	Number of study arms /patients	SMD (95% CI); P value	Hetero‐ geneity I2 [%]
Attention control : Only one study available
Active controls
Pain Negative mood Disability	6/379 6/379 5/313	‐0.36 (‐0.86 to 0.15); 0.16 ‐0.24 (‐0.76 to 0.28); 0.36 ‐0.23 (‐0.79 to 0.34); 0.43	82 82 82
Treatment as usual or waiting list
Pain Negative mood Disability	6/353 5/288 4/300	‐0.39 (‐0.61 to ‐0.18); 0.0003 ‐0.40 (‐0.68 to 0.06); 0.09 ‐0.49 (‐0.72 to ‐0.26); < 0.001	0 70 0