Sanders 1994.

Study characteristics
Methods	RCT. 2 arms. Assessed at pretreatment, post‐treatment, 6 months, 1 year
Participants	End of treatment: n = 44 Start of treatment: n = 44 Sex: 28 F, 16 M Mean age = 9.2 years (SD 1.9) Source = not given Diagnosis = recurrent abdominal pain Mean years of pain = 3.7
Interventions	"Cognitive behaviour therapy" "Standard paediatric care"
Outcomes	Primary pain outcome: pain diary Primary disability outcome: interference with child activity Primary depression outcome: none Primary anxiety outcome: none Pain intensity diary Parent observation of child pain behaviour (POR) Child behaviour checklist (CBCL '83) Relapse versus pain‐free Interference with child activity (child report) Interference with child activity (parent report)
Notes	COI: not reported Funding: "This study was supported by Grant 53091 from the National Health and Medical Research Council of Australia to Matthew R. Sanders, Ross W. Shepherd, and Geoggery Cleghorn."
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	"The study used a randomised group comparison design with two treatment conditions." Comment: method not described
Allocation concealment (selection bias)	Unclear risk	No description found in text Comment: probably not done
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	No description found in text Comment: probably not done
Incomplete outcome data (attrition bias) All outcomes	High risk	Attrition was not described and significant differences between completers and non‐completers were not reported
Selective reporting (reporting bias)	High risk	Data were incompletely reported