Labbe 1984.

Study characteristics
Methods	RCT. 2 arms. Assessed at pretreatment, post‐treatment (1 month after end of treatment), 6 months
Participants	End of treatment: n = 28 Start of treatment: n = 28 Sex: 14 F, 14 M Mean age = 10.8 years Source = community paediatrician referral, newspaper advertisement Diagnosis = migraine headache Mean years of pain = 4.3
Interventions	"Autogenic feedback training" "waiting‐list control"
Outcomes	Primary pain outcome: headache diary Primary disability outcome: none Primary depression outcome: none Primary anxiety outcome: none Headache index Headache frequency Headache duration Headache peak intensity Medication use
Notes	COI: not reported Funding: not reported
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	"The children who attended the first session were matched on age, sex, and baseline headache index and then randomly assigned to either a treatment group or waiting‐list control group." Comment: probably done, 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	Low risk	No dropouts reported in study
Selective reporting (reporting bias)	Low risk	Data were reported fully