Connelly 2006.

Methods	RCT. 2 arms. Assessed at pretreatment, post‐treatment, 2 months, 3 months
Participants	End of treatment: N = 36 Start of treatment: N = 37 Sex: 18 F, 19 M Mean age: 10.0 (range 7‐12) Source: clinic Diagnosis: headache Mean years of pain: not given
Interventions	"CD‐ROM behavioural” "Wait‐list neurology TAU"
Outcomes	Primary pain outcome: clinical reduction in headache frequency Primary disability outcome: Ped‐MIDAS Primary depression outcome: none Primary anxiety outcome: none Primary satisfaction outcome: none Measures reported: total pain (headache diary) Pediatric Migraine Disability Assessment (Ped‐MIDAS)
Notes	Funding source: educational grant from AstraZeneca LP Declarations of interest: none stated
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	"Randomly assigned to one of two groups by a research assistant using a uniform random numbers table." Comment: probably done
Allocation concealment (selection bias)	Low risk	"Randomly assigned to one of two groups by a research assistant using a uniform random numbers table." Comment: probably done
Blinding of participants and personnel (performance bias) All outcomes	Low risk	"Study neurologists remained blind to randomisation condition throughout the study. Chances of unbinding were limited because follow‐up appointments with the study neurologist were scheduled for 2 months following the initial assessment." Comment: probably done
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Measures completed at home and mailed back
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Attrition is described, however significant descriptions between completers and non‐completers were not reported
Selective reporting (reporting bias)	Low risk	Data were fully reported