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. 2018 Oct 1;2018(9):CD003968. doi: 10.1002/14651858.CD003968.pub5

Barry 1997.

Study characteristics
Methods RCT. 2 arms. Assessed at pretreatment, post‐treatment, 3 months
Participants End of treatment: n = 29
Start of treatment: n = 36
Sex: 19 F, 10 M
Mean age = 9.4 years
Source = volunteers via school and primary healthcare settings; referrals invited from primary and secondary care
Diagnosis = headache
Mean years of pain not given
Interventions "Cognitive behaviour therapy"
"waiting‐list control"
Outcomes Primary pain outcome: headache intensity
Primary disability outcome: school absence
Primary depression outcome: none
Primary anxiety outcome: none

  1. Headache intensity

  2. Headache duration

  3. Mood

  4. School absence due to headache

  5. Activities missed due to headache

  6. Medication intake

  7. Pain management strategies used
Notes COI: not described
Funding: not described
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) Unclear risk "Each parent‐child pair was initially matched with another pair based on the child's age, sex and headache pain as indicated by the parents' ratings of average duration, frequency, and intensity of headaches. Subsequently, one of each of the matched parent‐child pairs was randomly assigned to either the treatment condition or the waiting‐list control condition."
Comment: probably done, method not described
Allocation concealment (selection bias) High risk "Each parent‐child pair was initially matched with another pair based on the child's age, sex and headache pain as indicated by the parents' ratings of average duration, frequency, and intensity of headaches. Subsequently, one of each of the matched parent‐child pairs was randomly assigned to either the treatment condition or the waiting‐list control condition."
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 Unclear risk Attrition was described; no significant differences between completers and non‐completers were reported
Selective reporting (reporting bias) Unclear risk Data were completely reported on request