Cararach 1991

Methods	Type of study: RCT Method of treatment allocation: method of randomisation not stated. Stratification: none stated Placebo: no Sample size calculation: no Intention‐to‐treat analyses: yes Losses to follow‐up: no Funding: FIS; Perinatal Section of SEGO
Participants	Location: Hospital Clinic, University of Barcelona, Spain Timeframe: 1987‐1990 Eligibility criteria: women with PROM Gestational age range: 28‐30 weeks Exclusion criteria: none stated Total recruited: 18 women and infants; 12 women and infants in the treatment arm and 6 women and infants in the control arm
Interventions	Type and dose of corticosteroid used in the treatment group is not stated Control group received expectant management
Outcomes	Fetal/neonatal outcome reported (RDS)
Notes	Study only available as an abstract. Further information was requested from the study authors but there was no reply
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Method of randomisation not stated
Allocation concealment (selection bias)	Unclear risk	Method of allocation concealment not stated
Blinding of participants and personnel (performance bias) All outcomes	High risk	Blinding of participants and personnel not stated, although unlikely as placebo was not used
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Blinding of outcome assessment was not stated
Incomplete outcome data (attrition bias) All outcomes	Low risk	No losses to follow‐up
Selective reporting (reporting bias)	Unclear risk	Study only available as an abstract
Other bias	Unclear risk	Study was only available as an abstract. Further information was requested from the study authors, but there was no reply