| Methods |
Single‐blind, randomised‐controlled trial of hypnosis. The allocation sequence was not stated. No details were provided on concealment of the allocation sequence or blinding. |
| Participants |
47 teenagers, 18 years or younger, with a normal pregnancy before their 24th week of pregnancy. Teenagers were recruited at a public hospital in Florida, USA. |
| Interventions |
Treatment group received childbirth preparation in self‐hypnosis that included information on labour and delivery. The control group received supportive counseling. The study intervention began with individual meetings during regular clinic visits between 20‐24 weeks. Continuing clinic visits were scheduled on a biweekly basis, with the intervention run over 8 weeks. |
| Outcomes |
Medication use, complications, surgical intervention during delivery, length of hospital stay for mothers and neonatal intensive care admissions for infants. |
| Notes |
Five teenagers were lost to follow up (10%). There was no power calculation. No details on the baseline characteristics were provided. |
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Allocation concealment? |
Unclear risk |
B ‐ Unclear |
