Table 3

Summary of quality review

Author, year	IF	AMSTAR 2	Key quality justification	CPSP as primary or secondary outcome	Surgical procedures	Pain outcome
Bailey, 201829	6.96	Moderate	No explanation of selection for inclusion No report of funding	Primary	Mixed	Chronic only
Bi, 202028	3.18	Critically low	No justification of excluded trials No predefined criteria Risk of bias not interpreted	Secondary	Surgery specific	Acute and chronic
Carley, 202133	7.89	Low	Did not examine publication bias	Primary	Mixed	Chronic only
Chang, 201732	3.18	Low	No predefined criteria	Primary	Surgery specific	Acute and chronic
Chang, 202031	3.44	Low	Did not examine publication bias	Primary	Surgery specific	Acute and chronic
Chaparro, 201330	9.29	Low	Did not examine publication bias	Primary	Mixed	Chronic only
Clarke, 201227	5.18	Critically low	No justification of excluded trials No predefined criteria	Primary	Mixed	Chronic only
Hamilton, 201617	5.28	Critically low	No justification of excluded trials Did not examine publication bias	Secondary	Surgery specific	Acute and chronic
Jiang, 201826	1.89	Low	No predefined criteria	Secondary	Surgery specific	Acute and chronic
Klatt, 201525	1.57	Critically low	No risk of bias Risk of bias not interpreted	Primary	Mixed	Chronic only
Lepot, 202020	3.93	Critically low	No justification of excluded trials Did not examine publication bias	Secondary	Surgery specific	Acute and chronic
Martinez, 201724	6.96	Low	Did not examine publication bias	Primary	Mixed	Chronic only
McNicol, 201423	2.11	Critically low	No predefined criteria Did not examine publication bias	Primary	Mixed	Chronic only
Mishriky, 201522	9.17	Low	No predefined criteria	Secondary	Mixed	Acute and chronic
Rai, 201721	2.74	Low	Did not examine publication bias	Primary	Surgery specific	Acute and chronic
Riddell, 201919	9.17	Low	Did not examine publication bias	Secondary	Mixed	Acute and chronic
Verret, 202018	7.89	High	–	Secondary	Mixed	Acute and chronic

CPSP, chronic postsurgical pain; IF, impact factor.