Outcome title (End of treatment)	Number of study arms /patients		SMD (95% CI); P value
Low reported treatment quality
Pain Negative mood Disability	3/163 3/163 2/94	0.04 (‐0.32 to 0.41); 0.82 ‐0.08 (‐0.59 to 0.42); 0.74 ‐0.30 (‐0.71 to 0.02); 0.16
Moderate reported treatment quality
Pain Negative mood Disability	11/725 9/887 7/563	‐0.34(‐0.64 to ‐0.03); 0.03 ‐0.43(‐0.70 to ‐0.15); 0.002 ‐0.43(‐0.87 to 0.02); 0.06
High reported treatment quality
Pain Negative mood Disability	9/627 7/599 8/577	‐0.31 (‐0.50 to‐0.11); 0.002 ‐0.31 (‐0.50 to ‐0.12); 0.001 ‐0.19 (‐0.43 to 0.05); 0.12